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Department of Forensic Experts in Transportation (K622)

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Department Publications

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Authors:
Ing. Zdeněk Svatý, Ph.D.; Ing. Pavel Vrtal, Ph.D.; doc. Ing. Tomáš Mičunek, Ph.D.; Ing. Tomáš Kohout; Ing. Luboš Nouzovský, Ph.D.; Ing. Michal Frydrýn, Ph.D.; Ing. Tomáš Blodek; Ing. Bc. Karel Kocián, Ph.D.
Published:
2025, PLoS ONE, 20, p. 1-28), ISSN 1932-6203
Annotation:
This study investigates the safety risks of Unmanned Aerial System (UAS) collisions with humans, focusing on impact dynamics through controlled crash testing. Utilizing a custom-designed drop mechanism, 49 impact tests were conducted on a Hybrid III anthropomorphic test device at various velocities and kinetic energies (7–24 m/s and 1–280 J). Tested UASs included a range of designs and weights (20 g to over 1 kg). Results demonstrated limitations in using kinetic energy models and peak head acceleration for injury prediction. The Head Injury Criterion showed greater consistency, reflecting the temporal profile of impacts. Findings revealed that UAS structural fragility reduces energy transfer at higher impacts through deformation and fracturing. This work underscores the need for improved testing protocols and nuanced safety standards.
DOI:
10.1371/journal.pone.0320073
Type:
Článek v periodiku excerpovaném SCI Expanded

Authors:
Ing. Luboš Nouzovský, Ph.D.
Published:
2025, Young Transportation Engineers Conference 2024 Proceedings of selected papers, Praha, České vysoké učení technické v Praze), p. 34-46), ISBN 978-80-01-07414-5
Annotation:
Advertising devices along roads have a significant impact on road safety. This paper focuses on the analysis of Czech legislation governing the placement and operation of advertising devices near roads, particularly the Road Act and the Advertising Regulation Act. Special attention is given to the issue of light and dynamic advertisements, which can distract drivers and increase the risk of accidents. The paper also compares Czech regulations with legislative approaches in selected European countries, where rules for the placement of advertising devices are stricter and more focused on preventing threats to traffic safety. Inspiring examples from abroad highlight possible improvements, such as clearly defined distances from roads, restrictions on dynamic advertisements, and requirements to prevent glare. The goal of this study is to identify shortcomings in Czech regulations, propose improvements, and enhance road safety through more effective regulation of advertising devices.
Type:
Stať ve sborníku z mezinár. konf. cizojazyčně

Authors:
Bc. Jonáš Maleček; Ing. Tomáš Blodek; Ing. Tomáš Kohout
Published:
2025, Young Transportation Engineers Conference 2024 Proceedings of selected papers, Praha, České vysoké učení technické v Praze), p. 19-33), ISBN 978-80-01-07414-5
Annotation:
Pedestrian safety is one of the topics that must be addressed as part of a comprehensive view on road safety. Pedestrian movement in the immediate vicinity of the road is directed by a combination of pavement areas and pedestrian crossings. It is the pedestrian crossing that can be clearly identified as the most risky section of the pedestrian infrastructure, primarily due to the increased local concentration of pedestrians. Inappropriately designed or missing pavement areas pose a linear rather than a point-based risk to road traffic. Particularly risky are such sections where motorised road users do not expect pedestrians to enter the roadway, which inadequate and discontinuous pedestrian infrastructure amplifies. However, a considerable amount of literature has been devoted to pedestrian crossings, whereas the topic of safe design of pavement areas has been rarely addressed. This article presents an analysis of the safety of pedestrian infrastructure in the immediate vicinity of the road based on already provided road safety inspection. The aim of this article is to provide information on the problems often associated with pedestrian infrastructure.
Type:
Stať ve sborníku z mezinár. konf. cizojazyčně

Authors:
Ing. Zdeněk Svatý, Ph.D.; Ing. Pavel Vrtal, Ph.D.; Shults, R.; Ing. Tomáš Kohout; Ing. Luboš Nouzovský, Ph.D.; Ing. Tomáš Blodek; Ing. Bc. Karel Kocián, Ph.D.
Published:
2025, PLoS ONE, 20, ISSN 1932-6203
Annotation:
This paper deals with evaluation of photogrammetric measurements of pavement macrotexture for the purposes of new non-contact method for determination of pavement skid resistance. The aim was to create a method that yields results comparable to existing pavement friction measurement techniques, particularly the sand method, and to assess whether the measurements obtained using the non-contact approach are equally effective. Additionally, the goal was to introduce and define limits for camera calibration applicable to similar cases of object measurements at close distances. Based on existing standards, specific pavement samples exhibiting various macrotexture qualities were selected. The authors conducted 23 different combinations of photogrammetric measurements based on their findings during the evaluations. A comparison of the applied procedures with a reference measurement using the sand method was made, and the measurement error rate was calculated. By evaluating the different variations of the road surface models created, it was concluded that the most reliable results for defining friction are obtained by interleaving the test specimen through a plane based on the principle of best fit using the four highest points of the macrotexture. The ideal size of the sub-areas for applying the mask is 7.5–10 mm. Photogrammetry has proven to be a suitable and accurate tool for assessing pavement surface texture and can be considered as a suitable alternative to other skid resistance measurement approaches.
DOI:
10.1371/journal.pone.0318188
Type:
Článek v periodiku excerpovaném SCI Expanded

Authors:
Ing. Petr Richter, Ph.D.; Ing. Tomáš Kohout; Ing. Luboš Nouzovský, Ph.D.
Published:
2025, ISBN 978-80-01-07414-5
Type:
Sborník z mezinár. konf. cizojazyčně

Authors:
Ing. Pavel Vrtal, Ph.D.; Ing. Tomáš Kohout; Ing. Zdeněk Svatý, Ph.D.
Published:
2024, Soudní inženýrství, 35 (1), p. 40-49), ISSN 1211-443X
Annotation:
This paper presents an innovative method for automatic recognition and vectorization of traffic infrastructure images without the use of deep learning algorithms. The main benefit is the ability to vectorize only selected image segments, which saves time and increases efficiency in data processing. The newly developed software offers more efficient processing and information extraction, which is beneficial for road safety planners and auditors.
DOI:
10.13164/SI.2024.1.40
Type:
Článek v odborném recenzovaném periodiku česky

Authors:
Ing. Jiří Růžička, Ph.D.; doc. Ing. Tomáš Tichý, Ph.D., MBA; Ing. Eva Hajčiarová; Ing. Michal Frydrýn, Ph.D.
Published:
2024, 2024 Smart City Symposium Prague - IEEE PROCEEDINGS, New York, IEEE Press), ISBN 979-8-3503-6096-7, ISSN 2831-5618
Annotation:
An integral part of modern cities within Smart City concepts is the development and related innovations in traffic control systems. New proposals need to be carried out in accordance with the applicable legislation and at the same time on a sufficient data base. This paper reflects the first conclusions of the research project SENDER, the aim of which is to develop, using deep learning methods, such a system that will warn drivers of impending danger in front of selected traffic intersections based on recognized data in the image from installed cameras. The paper mainly describes the process of selecting traffic situations in the area of intersections, which it is appropriate to warn the driver about. As part of the research, a state-of-the-art analysis was first carried out, which summarizes knowledge from current traffic control systems and the possibility of identifying collision situations, then the expert team defined collision situations that may occur in the node, including accompanying prioritization. On the basis of this identification, a specific intersection in the city of Brno was selected, which was fitted with cameras, and a test was conducted to determine whether the defined collision situations at the intersection actually occur. For the purposes of the developed system, this results in the specification of preferred collision situations, and these will then be simulated in variants with minor changes in the input parameters, in order to create a large enough database for learning the neural network.
DOI:
10.1109/SCSP61506.2024.10552688
Type:
Stať ve sborníku z prestižní konf.

Authors:
doc. Ing. Tomáš Tichý, Ph.D., MBA; doc. Ing. Zdeněk Lokaj, Ph.D., LL.M.; Ing. Tomáš Kohout; Ing. Tereza Kunclová, MSc.; Ing. Michal Malý; Picek, L.; Hájek, P.; Janečka, K.; Volný, M.; Tříska, L.; Malý, M.; Beneš, J.; Kvapilík, M.; Prokeš, R.; Mrázek, M.; Rozlivek, J.; Malý, D.; Vajsner, T.
Published:
2024
Annotation:
The pilot section for testing autonomous mobility represents a specific part of the transport infrastructure, which is adapted to testing autonomous vehicle systems (even partial ones) in real or simulated operation. This section is intended to provide a safe, technologically advanced and controlled environment for verifying the functionality and reliability of the tested systems. The pilot section consists of roads from the Kaplířova x Klatovská intersection to the final TRAM University of Pilsen and its surroundings - roadways, technological equipment, etc. The section is approximately 1.7 km long with a different environment around the TRAM - 4-lane divided road, separate TRAM strip, TRAM x road intersection, OK, SSZ, switches, public transport/VHD stops, pedestrian infrastructure.
Type:
Výzkumná zpráva v češtině

Authors:
doc. Ing. Tomáš Tichý, Ph.D., MBA; doc. Ing. Zdeněk Lokaj, Ph.D., LL.M.; Ing. Tomáš Kohout; Ing. Tereza Kunclová, MSc.; Ing. Michal Malý; Picek, L.; Volný, M.; Tříska, L.; Malý, M.; Beneš, J.; Prokeš, R.; Kvapilík, M.; Mrázek, M.; Rozlivek, J.; Malý, D.; Vajsner, T.
Published:
2024
Annotation:
Within the DiDYMOS project, the proposed systems were pilot tested in the laboratory before implementation in the pilot site. One of the key aspects of the laboratory testing was a thorough verification of all functions, their reliability and the acquisition of the necessary data. The parts of the systems, developed software, connectors, APIs used to control and evaluate the data from the detectors/vehicles were tested. Testing was carried out in simulated operating conditions with the involvement of parts of individual solvers.
Type:
Výzkumná zpráva v češtině

Authors:
Ing. Zdeněk Svatý, Ph.D.; Ing. Luboš Nouzovský, Ph.D.; Ing. Tomáš Kohout; Ing. Tomáš Blodek
Published:
2024
Annotation:
Testing and Verification of Hybrid Data Collection Technology Based on Photogrammetric and LiDAR Imaging with Precise Geolocation for Police Investigation Practices. The solution primarily focuses on the investigation of traffic accident (TA) scenes, taking into account the needs, requirements, and capabilities of traffic police and forensic experts.
Type:
Výzkumná zpráva v češtině

Authors:
Bradáč, A.; Semela, M.; Kledus, R.; doc. Ing. Tomáš Mičunek, Ph.D.; Ing. Michal Frydrýn, Ph.D.; Ing. Luboš Nouzovský, Ph.D.; Ing. Zdeněk Svatý, Ph.D.; doc. Ing. Zuzana Radová, Ph.D.
Published:
2024, ISBN 978-80-214-6209-0
Annotation:
The expert book deals with a complex systemic approach to road accident analysis, contains modern methods of documentation and analysis of road accidents, including examples, and takes into account changes in the legal environment of expert activities
DOI:
10.13164/usi.book.tpasn
Type:
Jiná kniha česky

Authors:
Ing. Tomáš Blodek; Ing. Pavel Vrtal, Ph.D.; Ing. Tomáš Kohout; Ing. Zdeněk Svatý, Ph.D.; Ing. Luboš Nouzovský, Ph.D.
Published:
2024, Proceedings of the 2024 24th International Scientific Conference on Electric Power Engineering (EPE), VSB - Technical University of Ostrava (TUO)), p. 119-123), ISBN 979-8-3503-4877-4, ISSN 2376-5631
Annotation:
This article focuses on road safety in low visibility. Research is dedicated to the method of performing night road safety inspections and to comparison of its effectiveness and to the achieved outputs with measured data by the luminance analysis. The main objective of this study is to verify whether inadequate lighting of roadways can be identified solely through subjective visual perception. Both methods were compared in three test measurements in selected municipalities in the Czech Republic with different road lighting designs. Measured data from the luminance analyser were compared with technical standards defining the class of road lighting and subsequently compared with recorded traffic safety defects. The results confirm that it is possible to assess the lighting conditions of sites based on subjective perception of the night traffic area and can be considered valid. The final output also included a new graphical method of data interpretation in the form of implementation of the luminance analysis into cadastral maps.
DOI:
10.1109/EPE61521.2024.10559538
Type:
Stať ve sborníku z prestižní konf.

Authors:
Ing. Zdeněk Svatý, Ph.D.; doc. Ing. Tomáš Mičunek, Ph.D.; Ing. Michal Frydrýn, Ph.D.; Ing. Luboš Nouzovský, Ph.D.; Ing. Pavel Vrtal, Ph.D.
Published:
2023, Aerospace Structural Impact Dynamics International Conference Proceedings 2023, Wichita, Kansas, Wichita State University, National Institute for Aviation Research)
Annotation:
This article summarizes a study that aimed to analyse and evaluate the ground-based risks associated with small Unmanned Aircraft Systems (sUAS) operations, particularly those that pose risks to the general public. Non-destructive tests were conducted to validate the currently used generalized kinetic energy (KE) relations based on objective data. The study found significant differences in observed speeds and KE between multi-rotor and fixed-wing aircraft, which were supplemented with other published data. While the currently used generalized relations between KE and mass of the sUAS are suitable for multi-rotor sUAS, fixed-wing aircraft may reach higher impact KE in case of failure. To assess repeatability and compatibility, a uniform crash test database was created from published crash tests performed with Anthropomorphic Test Devices (ATD), simplified ATD, and Post-Mortem Human Surrogates, supplemented with a series of dynamic crash tests with 18 multi-copter sUASs with mass ranging from 20g to 1.3 kg. Additionally, the study evaluated the effects of UAS design and frame material characteristics. Results show that UASs under the 250 g threshold do not pose a significant risk of injury in case of an impact, even in cases of high impact velocity (15 m/s). While inherent risks are related to increased impact kinetic energy, the design plays a factor in affecting the resulting injury severity. The study applied a new approach with rigid impactor tests to the database, which showed that the ATD was able to discern the severity of the impact and the increasing loads connected to the kinetic energy. For tests with a rigid object, a significant improvement in the correspondence between the KE Human vulnerability models and automotive prediction models was observed. The study also determined the relations between the biomechanical criteria (peak head acceleration, HIC15, Nij) and KE. As a result, the proposed approach can be used to estimate the maximum transmitted energy based on a comparison between UAS and rigid impactor tests.
Type:
Stať ve sborníku z mezinár. konf.

Authors:
Ing. Pavel Vrtal, Ph.D.; Ing. Bc. Karel Kocián, Ph.D.; Ing. Jakub Nováček, Ph.D.; Ing. Zdeněk Svatý, Ph.D.; Ing. Tomáš Kohout
Published:
2023, Applied Sciences, 13 (1270), ISSN 2076-3417
Annotation:
The aim of this article is to improve road safety. Specifically, it deals with the development of a mathematical model that will more accurately define the severity of a defect in a road restraint system. Currently, that evaluation is based only on the subjective perception of individual safety auditors. The mathematical model was developed based on the principle of Bayesian statistics. The determination of the specific risk was made by comparing the results of the model for two datasets. In the first case, the model was based on accident data correlated with recorded defects in road restraint systems. In the second case, the dataset represented accident events with crash barriers where no defect was identified. Based on the comparison, a total of 64 risk combinations were identified. The mathematical model confirmed 26 combinations (41% of all selected combinations of the defect levels of the crash barriers). Although not even half of the identified combinations were confirmed, more than 90% of all correlated records are found in these exposures of confirmed combinations. The verification was able to clearly define the risk of safety defects and thus brings potential accuracy to subsequent decision-making related to the repair of road restraint systems.
DOI:
10.3390/app13031270
Type:
Článek v periodiku excerpovaném SCI Expanded

Authors:
Ing. Zdeněk Svatý, Ph.D.; Ing. Pavel Vrtal, Ph.D.; Ing. Tomáš Kohout; Ing. Luboš Nouzovský, Ph.D.
Published:
2023, ISPRS Archives, Munich, ISPRS), p. 111-116), ISSN 2194-9050
Annotation:
This paper proposes, describes, and applies an algorithm for the automatic detection of selected elements of road infrastructure, along with the option to determine their spatial information. The principle is based on the evaluation of the color spectrum of the selected object on orthographic images. As a source image used for the processing, output from low-altitude aerial photogrammetry or terrestrial laser scanning can be used, together with the option to implement digital elevation models into the processing. The approach is based on the detection of the color composition of the selected element of the road, followed by clustering of the identified elements within the image and mathematical transformation of the clusters into a spatial vector form. Prior to the processing, the target objects are filtered out based on user input, for which vectorization is performed. The outputs are in the form of contours or the determined basic structure of the object. The main difference compared to existing methods is that the vectorization is only performed on the selected, pre-filtered parts of the raster image with identified target objects, not the whole image. This approach makes it possible to effectively and automatically identify and analyze, e.g., the edge of the road, road markings, or road features. This enables the subsequent implementation of the identified outputs into more complex spatial models of the road or its proximity. Additionally, the processing of the data to create a digital model of the environment can be automated, with a significant saving of time and related costs.
DOI:
10.5194/isprs-archives-XLVIII-5-W2-2023-111-2023
Type:
Stať ve sborníku z prestižní konf. (Scopus)

Authors:
Vacka, L.; Ing. Tomáš Kohout; Ing. Pavel Vrtal, Ph.D.
Published:
2023, Young Transportation Engineers Conference 2022, Praha, České vysoké učení technické v Praze), p. 83-88), ISBN 978-80-01-07224-0, ISSN 2336-5382
Annotation:
Cycling is a dynamically expanding transport mode of today. At the same time, cycling is an alternative to individual car transport as well as to public transport. The basis of a good cycling infrastructure is a comprehensive network of safe cycling routes linking transport sources and destinations in the area. The partial objectives of the project are to evaluate the management of the existing cycle routes according to the way cyclists are guided and according to the surface of the individual route sections, as well as to determine the basic sources and destinations. The main objectives of the project are to design a network of bicycle routes with a focus on keeping them separate from motorized traffic and linking the identified resources and destinations, as well as determining the difficulty of each newly proposed route.
DOI:
10.14311/APP.2023.41.0083
Type:
Stať ve sborníku z prestižní konf. (Scopus)

Authors:
Ing. Pavel Vrtal, Ph.D.; Ing. Tomáš Kohout; Ing. Luboš Nouzovský, Ph.D.; Ing. Zdeněk Svatý, Ph.D.
Published:
2023, Vol. 42 (2023): 18th Youth Symposium on Experimental Solid Mechanics, Praha, České vysoké učení technické v Praze), p. 83-86), ISBN 978-80-01-07237-0, ISSN 2336-5382
Annotation:
The purpose of this paper is to present a series of dynamic tests for testing the protective and security barrier of the PROBAR system, developed by STRIX Chomutov, a.s., according to the PAS 68:2013 standard. The goal of the tests was to assess how the obstacle resist impacts and whether it can absorb the energy exerted on it. Verification of the mechanical properties of the device was performed in two types of impact configurations. Emphasis was placed on the behaviour of both the obstacle and the vehicle during the impact and in the short time interval after the collision. In terms of criteria for evaluating the impact tests, it can be stated that Test 2 exceeded the Theoretical Head Impact Velocity (THIV) criterion by 20 km h−1, while Test 1 did not exceed the limit value. However, all values for other criteria (ASI, PHD, HIC, 3ms) were within the specified limits, and the safety barrier met the required criteria which allows to be certificated.
DOI:
10.14311/APP.2023.42.0083
Type:
Stať ve sborníku z prestižní konf.

Authors:
Zikánová, G.; Ing. Pavel Vrtal, Ph.D.; Ing. Tomáš Blodek
Published:
2023, Sborník příspěvků konference Junior Forensic Science Brno 2023, Brno, Ústav soudního inženýrství), p. 48-53), ISBN 978-80-214-6165-9
Annotation:
One of the important factors influencing road safety in reduced visibility is the illumination of the traffic area as the ability to distinguish objects and the speed of their perception depends on the level of illumination and the contrast of the perceived elements. In particular pedestrian crossings are a very critical location for traffic accidents when crossing the road in reduced visibility. Long-term results of investigations of traffic accidents registered that during periods of reduced visibility the occurrence of night accidents is influenced not only by the technical condition of roads, the technical condition of vehicles, driver behaviour, weather conditions but also to a significant extent by visibility in the night road area. The following article presents a method for evaluating the luminance analysis at pedestrian crossings in reduced visibility.
Type:
Stať ve sborníku z fakultní konference česky

Authors:
Vertaľ, P.; doc. Ing. Tomáš Mičunek, Ph.D.; Ing. Michal Frydrýn, Ph.D.; Ing. Luboš Nouzovský, Ph.D.; Kolla, E.
Published:
2023, Proceedings of 31st Annual Congress of the European Association for Accident Research, Graz, European Association for Accident Research and Analysis), ISBN 978-80-7399-136-4
Annotation:
The modern era has brought a number of new options and sources for the analysis of traffic accidents. New devices for the processing of the EDR (Event Data Recorder) data, for example the Airbag Control Module (ACM) that stores certain vehicle parameter data at the time of a specific event (e.g. accident). This data is not stored elsewhere in the electronics and vehicle control systems. Although the vehicle’s main control unit stores FreezeFrame (recording of the vehicle’s status data in the event of a fault in some systems), the information about the vehicle’s status during the event is not so detailed. The article focuses on reading, interpretation and validation of EDR (Event Data Recorder) accident data using the CDR system. EDR or Event Data Recorder is a function of the airbag control unit, which records certain vehicle parameter data at the time of a specific event (e.g. accident). Four new crash tests provided by USI Zilina will be presented - Side impact during parallel driving of vehicles (Toyota Auris and Toyota Aygo), driving in an arc with braking and at the same time impact to the rear corner of the vehicle (Toyota Auris and Toyota Aygo), head-on collision with a stationary vehicle (Dodge Caliber and Toyota Aygo), Rear impact of the vehicle into a stationary vehicle (Volvo 60 and Toyota Auris). The purpose of the crash tests, whose results are the core of the paper, was to verify the reliability of the read data by comparing it with an independent measuring system. The tests were carried out as part of the research project VI20172020108 “Development of an Innovative Method for Identification of Road Traffic Offences Using Electronic Accident Data”. The project focuses on the development of an innovative method for identifying, proving and combating road traffic crime using modern technology and new knowledge in the field of measuring the dynamic characteristics. The tests, the obtained data and experience shows that the system based on retrieving post-crash data (specifically the CDR System) is a useful tool. The data from this system broadly corresponds to the data measured by an independent calibrated measurement system. The accident data storage function is based on the requirement of the National Highway Traffic Safety Administration (NHTSA). Federal Regulation (49CFR Part 563) subsequently standardised data stored by the EDR. In Europe, however, this system depends on the manufacturer’s decision ( to 2022) as to what format and what data the user will be able to retrieve. Similarly, it is up to the manufacturer what sensors (in terms of measured quantities and their measuring frequencies) will be installed in vehicles, which has a significant impact on the readings. New homologated cars from 2022 has to have EDR data base of EU rules.
Type:
Stať ve sborníku z mezinár. konf.

Authors:
Ing. Martin Scháno; Nový, J.; Ing. Ondřej Smíšek
Published:
2023, 2023 Smart City Symposium Prague, New York, IEEE Press), ISBN 979-8-3503-2162-3, ISSN 2691-3666
Annotation:
Traffic engineers have long sought to understand what encourages drivers to drive fast and to design road infrastructure to induce drivers to behave in a desired way. But what leads drivers to select a particular speed while driving is principally a psychological question. This paper aims to expand the understanding of the factors affecting driving speed in built-up areas of towns and municipalities. We analysed nearly 700,000 vehicles-driving on roads of regional and supra-regional significance near the Bohemian Switzerland National Park-in 20 surveys at 17 locations. A broad set of infrastructure attributes was defined and measured at each site. The collected data were analysed using statistical methods to draw general conclusions about driver behaviour that can be used to improve traffic engineering. Several of the presumed attributes were confirmed to influence driver speed choice, and several new factors were discovered and proposed for implementation in traffic engineering and mathematical modelling tools.
DOI:
10.1109/SCSP58044.2023.10146116
Type:
Stať ve sborníku z prestižní konf. (Scopus)

Authors:
Ing. Tomáš Blodek; Ing. Tomáš Kohout; Zikánová, G.
Published:
2023, Sborník příspěvků konference Junior Forensic Science Brno 2023, Brno, Ústav soudního inženýrství), p. 13-20), ISBN 978-80-214-6165-9
Annotation:
The article deals with the safety of the most vulnerable road users, which are pedestrians and cyclists. Specifically, it focuses on pedestrian safety. These road users are most likely to occur in built-up areas of municipalities. Many factors are necessary to ensure their safety and one of them is to ensure that motor vehicle drivers in these areas comply with the prescribed maximum speed limit. It is important to ensure that drivers are already travelling at this speed when entering the built-up area and do not exceed it throughout the whole of the built-up area, or the entire length of the village. The aim of authors was to establish the principle of a uniform design of traffic calming measures, especially at the entrances to the villages. This principle was based on data obtained on vehicle speeds before entering the village, the height and width of the road in and near the village, the presence of adequate infrastructure for pedestrians and cyclists, and the importance of the road in question. The result of the research project is a tool for selecting appropriate gateway traffic calming measures. The tool works on the principle of a decision tree, which offers advantages such as clarity and ease of interpretation. Based on the knowledge of the parameters of the road and its surroundings, the decision tree can easily guide the assessor to the appropriate calming measure or combination of measures.
Type:
Stať ve sborníku z fakultní konference česky

Authors:
Sovják, R.; Váňa, T.; doc. Ing. Tomáš Mičunek, Ph.D.; Hála, P.; Majer, V.; Ing. Luboš Nouzovský, Ph.D.
Published:
2023, 18. konference Technologie a provádění (2023), Praha 1, Česká betonářská společnost ČSSI), p. 164-169), ISBN 978-80-907611-8-6
Annotation:
The paper deals with the development, production and testing of deformation blocks for the construction of separate slopes. The deformation blocks have been developed from a rapid setting compound and have been used for the construction of single slopes. The individual deformation blocks and the whole construction of the single slope were tested for car impact and also for their load capacity against passing cars. It has been proven that the deformation blocks can significantly reduce the overload acting on the vehicle occupants in a head-on collision with a separate exit and thus significantly enhance road safety.
Type:
Stať ve sborníku z lokální konf. česky

Authors:
Ing. Luboš Nouzovský, Ph.D.; Ing. Zdeněk Svatý, Ph.D.; Hála, P.
Published:
2023, Young Transportation Engineers Conference 2022, Praha, České vysoké učení technické v Praze), p. 36-43), ISBN 978-80-01-07224-0, ISSN 2336-5382
Annotation:
The security of the population and its protection in the context of terrorist attacks is currently one of the major topics of the professional public and security forces. A number of attacks in the last decade have targeted soft targets, which, according to a generally valid definition, can be considered as places with a high concentration of people and a low level of security against violent attacks. In order to ensure maximum effectiveness in protecting soft targets, a number of procedures and methodologies have been developed to determine appropriate measures and their appropriate application. From a technical point of view, these include mechanical barrier systems and elements. It is mechanical barrier elements that are the focus of this article, which uses a selected specific device to present its function, its possible applications, and the issue of testing before use in practice.
DOI:
10.14311/APP.2023.41.0036
Type:
Stať ve sborníku z prestižní konf. (Scopus)

Authors:
Ing. Bc. Karel Kocián, Ph.D.; Ing. Jakub Nováček, Ph.D.
Published:
2023, Applied Sciences, 13 (9), ISSN 2076-3417
Annotation:
The primary objective of this article is to determine and subsequently verify the severity of a traffic accident caused by a collision with a fixed obstacle located in rural area sections along international roads in the Czech Republic. The aim is to create a unified assessment tool of fixed obstacles along roads. In this way, it is possible to determine in advance the level of risk of fixed obstacles along roads before traffic accidents could occur at these locations. The work is based on the assumption that the severity level of fixed obstacles in road traffic is determined by the product of the probability of hitting the object and the severity of the consequences. On the basis of these parameters, 54 specific combinations of fixed obstacles and surrounding terrain are determined, to which the specific severity of the combination is assigned in relation to the potential impact on the health of the vehicle occupants. Subsequently, a hypothesis is established that confirms or refutes, in a clear and unified manner, the initial, subjective views on the possible consequences of a traffic accident related to a fixed-obstacle impact. The verification of the hypothesis is carried out using a statistical apparatus based on the principles of conditional probability on 280 traffic accidents related to hitting a fixed obstacle. The proposed procedure verified 36 out of 54 (almost 67%) individual combinations of fixed obstacles and surrounding terrain. It was determined that there were 13 combinations with a high risk, where there is a significant probability of serious injury to occupants; 6 combinations with a moderate severity of injury to occupants; 3 cases with a low severity; and 14 cases where it was shown that the impact with a fixed obstacle was most probably not going to result in personal injury but only in material damage to the vehicle. The results of this research, which applies a unified approach to the risk analysis of fixed obstacles, will systematically improve the level of traffic safety. This primarily means preventing accidents with fixed obstacles, saving lives and reducing economic losses.
DOI:
10.3390/app13095366
Type:
Článek v periodiku excerpovaném SCI Expanded

Authors:
Ing. Michal Frydrýn, Ph.D.; Ing. Tereza Šimková
Published:
2023, Young Transportation Engineers Conference 2022, Praha, České vysoké učení technické v Praze), p. 66-70), ISBN 978-80-01-07224-0, ISSN 2336-5382
Annotation:
The topic of the article are vehicle restraint systems. Specifically, the paper focuses on the safety analysis of the way of implementation of crash cushions. Within the safety analysis carried out on the territory of the Ústí Region of the Czech Republic, the most frequently occurring deficiencies in crash cushions and their possible impacts on road safety were identified. The output is the creation of catalogue sheets of crash cushions, which contain the most frequently installed crash cushions on the road network and a summary of methodological requirements for their adequate implementation. The work is intended to serve as an effective tool and a quality source of information for road managers and road safety auditors during their subsequent inspection.
DOI:
10.14311/APP.2023.41.0066
Type:
Stať ve sborníku z prestižní konf. (Scopus)

Authors:
Rak, M.; Tmejová, T.; Bilík, T.; Jelínek, T.; Bradáč, A.; Ing. Luboš Nouzovský, Ph.D.
Published:
2023, Soudní inženýrství, 34 (1), p. 25-31), ISSN 1211-443X
Annotation:
This article deals with the effect of using the warning triangle in areal trafficsituation in reduced visibility during night time. The focus of the study isthe change in the speed of passing vehicles in relation to this non-standardsituation. The coefficient of the dangerousness was used to evaluate anddescribe the drivers‘ behaviour. In the framework of this research, differentpossibilities of avoiding a collision or its consequences were consideredin the considered range of distances of 30 to 50 m between the warningtriangle and the imaginary obstacle.
DOI:
10.13164/SI.2023.1.25
Type:
Článek v odborném recenzovaném periodiku česky

Authors:
Ing. Tomáš Kohout; Ing. Pavel Vrtal, Ph.D.; Hoffmann, A.; Ing. Tomáš Blodek
Published:
2023, Vol. 42 (2023): 18th Youth Symposium on Experimental Solid Mechanics, Praha, České vysoké učení technické v Praze), p. 37-45), ISBN 978-80-01-07237-0, ISSN 2336-5382
Annotation:
The aim of the paper is to verify the applicability of the T2GO skiddometer for measuring the coefficient of friction for forensic practice in accordance with the legislative framework of the Czech Republic. In the introduction, the article discusses the problem of friction coefficient measurement. The results of the comparison with dynamic measuring devices used in the Czech Republic and the determination of the mutual compliance rate with these devices, based on data obtained within the National Comparative Measurement Action, are presented. The article concludes with an interpretation and discussion of the results. In cases where no sufficient mutual compliance was found, an analysis and reasoning of these results is provided. Last but not least, based on the results, a procedure is proposed for future use of the T2GO skiddometer in practice within the legislative conditions of the Czech Republic.
DOI:
10.14311/APP.2023.42.0037
Type:
Stať ve sborníku z prestižní konf.

Authors:
Ing. Ondřej Piksa; Orlický, A.; Ing. Martin Scháno
Published:
2023, Acta Polytechnica CTU Proceedings, 2023 (41), p. 49-57), ISSN 2336-5382
Annotation:
Vývoj pokročilých asistenčních systémů (ADAS) a autonomních vozidel (AV) na základě strojového učení obecně představuje rozsáhlý a finančně náročný proces. V souvislosti s narůstající komplexností autonomních systémů přichází potřeba rozsáhlého testování a validace. V posledních letech se pro tyto účely využívá počítačových simulací. Provádět realistické simulace především pro účely učení systémů využívajících automatické rozpoznávání obrazu vyžadují vysoce, téměř fotorealistické virtuální prostředí. Tento článek představuje U SMART ZONE, vysoce přesný virtuální model městské části Severní Terasa v Ústí nad Labem, České republice zahrnující více než 7,5 km pojízdných ploch o celkové rozloze téměř 1,4 čtverečních km pro human-in-the-loop a hardware-in-the-loop (HiL) simulace.
DOI:
10.14311/APP.2023.41.0049
Type:
Článek v odborném recenzovaném periodiku cizojazyčně

Authors:
Ing. Luboš Nouzovský, Ph.D.; Ing. Michal Drábek, Ph.D.; Ing. Petr Richter, Ph.D.; Ing. Jiří Růžička, Ph.D.
Published:
2023, ISBN 978-80-01-07224-0, ISSN 2336-5382
Type:
Sborník z mezinár. konf. cizojazyčně

Authors:
Ing. Tomáš Kohout; Ing. Luboš Nouzovský, Ph.D.; Ing. Pavel Vrtal, Ph.D.; Ing. Bc. Karel Kocián, Ph.D.
Published:
2022, Moderní železnice pro 21. století, Studentská vědecká konference, Praha, České vysoké učení technické v Praze), p. 57-61), ISBN 978-80-01-06996-7, ISSN 2336-5382
Annotation:
This conference paper discusses a new analytical approach to the evaluation of trafficsafety at the railway crossings. The new method is based on the use of ontological principles. Theontological tools present a comprehensive decision-making tool, will can be applied to any potentialhazardous railway crossing on a road or rail network. The ontology can be considered as a knowledgebase that not only stores the data itself, but also defines the relationships between these data, and cantherefore be described as a clearly suitable tool for describing risks at level crossings
DOI:
10.14311/APP.2023.43.0057
Type:
Stať ve sborníku z prestižní konf. (Scopus)

Authors:
Ing. Jakub Nováček, Ph.D.; Ing. Tomáš Kohout; Ing. Pavel Vrtal, Ph.D.; Ing. Zdeněk Svatý, Ph.D.; Ing. Bc. Karel Kocián, Ph.D.
Published:
2022, The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Volume XLVI-5/W1-2022, Munich, ISPRS), p. 159-164), ISSN 2194-9034
Annotation:
Sustainability is one of the main scientific and public topics of today. This includes the sustainable transport and infrastructure. One of the ways how to achieve higher level of sustainability is through the implementation of BIM (Building Information Modelling) into the road design process. However, to create a safe road network, which is also necessary for achievable sustainability, it is essential to consider the Road Safety Audit (RSA) principles throughout the BIM applications. The paper discusses the possibilities of involving the RSA in the process road design in I-BIM (Infrastructures Building Information Modelling). Within the individual phases of the preparation of a transport project and the application of the safety audit tools in BIM applications, it is possible to achieve a significant increase in the level of safety. This approach is shown within the paper on the implementation and use of supplementary road safety devices, specifically the road restraint systems. Currently, the individual components are defined by their main parameters in specific libraries. However, their definition is only as a general object where many of the supplementary parameters or fundamental design characteristics, such as working width or minimal length, are not included. This may lead to potential design flaws or safety hazards which have to be subsequently corrected in further phases. The objective of the paper is to identify the current deficiencies, primarily the missing road safety perspective within the BIM process. The aim is to enable appropriate selection of safety equipment during the design or to provide sufficient information for the mandatory RSA.
DOI:
10.5194/isprs-archives-XLVI-5-W1-2022-159-2022
Type:
Stať ve sborníku z prestižní konf.

Authors:
Ing. Pavel Vrtal, Ph.D.; Ing. Jakub Nováček, Ph.D.; Ing. Tomáš Kohout; Řepová, K.
Published:
2022, Sborník příspěvků konference Junior Forensic Science Brno 2022, Brno, Vysoké učení technické v Brně), p. 60-70), ISBN 978-80-214-6063-8
Annotation:
The subject of this thesis is the analysis of the current state of the passenger car fleet with regard to the evolution of their external structural dimensions. The general assumption has been made that the development of the size of individual vehicle models has changed considerably over the years, but this fact is not reflected in the currently valid technical documents, which deal mainly with the design of transport structures. One of the key technical documents for the assessment of traffic structures are Technical Conditions (TC) No. 171 'Swept paths for verifying the passability of directional elements of roads'. These TCs contain models of vehicles of different size categories and thus define their swept paths, or templates, used for verifying the passability of vehicles, especially in locations with tight space requirements. The aim of this work was to focus on the composition of the passenger car fleet in the Czech Republic. To verify whether the dimensions of the passenger car reference vehicle, according to the TC, are still satisfactory or whether these conditions require necessary updating to maintain the adequacy of the traffic safety assessment and the space requirements of these vehicles. The findings show that the space requirements of most vehicles have increased and the models currently in use are no longer sufficient.
Type:
Stať ve sborníku z fakultní konference česky

Authors:
Ing. Josef Mík, Ph.D.; Ing. Luboš Nouzovský, Ph.D.; Mashko, A.; prof. Ing. Zdeněk Votruba, CSc.; Matoušek, V.; doc. Ing. Petr Bouchner, Ph.D.; doc. Ing. Vít Fábera, Ph.D.; doc. Ing. Zuzana Radová, Ph.D.; Smrčka, P.; doc. Ing. Tomáš Tichý, Ph.D., MBA; Ing. Milan Sliacky, Ph.D.
Published:
2022, ISBN 978-80-01-07105-2, ISSN 2336-5382
Type:
Sborník z mezinár. konf. cizojazyčně

Authors:
Ing. Luboš Nouzovský, Ph.D.; Ing. Tomáš Kohout; Ing. Pavel Vrtal, Ph.D.; Ing. Jakub Nováček, Ph.D.
Published:
2022, Driver-Car Interaction and Safety Conference 2021, Praha, České vysoké učení technické v Praze), ISBN 978-80-01-07105-2, ISSN 2336-5382
Annotation:
Severity of a vehicle impact into solid obstacles alongside of the road can be annually illustrated by means of accident statistics. One example of such solid obstacles is drainage ditch culvert faces. Within the research at the Faculty of Transportation Sciences of the Czech Technical University new equipment has been designed in a form of a modular system of the drainage ditch culvert faces construction. Qualities of this equipment have been tested by means of crash tests with a passenger vehicle Škoda Fabia making use of criteria of biomechanical endurance of the vehicle passengers. The results have been compared with the test carried out by means of a vehicle crash into concrete culvert faces.
Type:
Stať ve sborníku z prestižní konf. (Scopus)

Authors:
Ing. Zdeněk Svatý, Ph.D.; Ing. Luboš Nouzovský, Ph.D.; doc. Ing. Tomáš Mičunek, Ph.D.; Ing. Michal Frydrýn, Ph.D.
Published:
2022, Heliyon, 8 (11), ISSN 2405-8440
Annotation:
The operational safety assessment of the unmanned vehicles is crucial for their subsequent practical use. The safety limit criteria used for the operation assessment, especially values closely related to the safety of persons and their vulnerability to collision with these vehicles, represent nowadays a significant limitation. This contribution presents the currently discussed and proposed human safety criteria for the UAS, evaluates the available data from the collision dynamic tests and computer modelling and provides the possibility to compare and evaluate these criteria on a validated set of data. A total of five small UAS, three multi-rotor quadcopters and two fixed-wing aircrafts were used to verify the current methods and serve as a basis for the assessment. The results of the measurements obtained through the crash tests demonstrate the excessive restrictiveness of the currently used kinetic energy threshold values and the limited value of some proposed criterions, e.g. the blunt criterion. On the contrary, they point to the appropriateness of the application of car vulnerability criterions. The UAS mass or kinetic energy tests represent an easily definable threshold value, however, the available data sets and the tests performed showed limitations of its applicability for the deformable and fragile UAS structures. The article aims to verify, based on its own impact tests, the adequacy of the evaluation of the safety criteria of the UAS operation in relation to the development of the current legislation that defines the conditions of use of these machines.
DOI:
10.1016/j.heliyon.2022.e11677
Type:
Článek v periodiku excerpovaném SCI Expanded

Authors:
Ing. Zdeněk Svatý, Ph.D.; Rollo, M.; Csanda, J.; Straka, J.
Published:
2022
Annotation:
The study provides overall project results and qualitative and quantitative indicators for JARUS SORA methodology implementation for the Czech Republic. The study concludes recommendation of drone platform parameters, onboard equipment used for risk mitigation, and increasing robustness of operations, including requirements for pilot qualification and drone maintenance.
Type:
Výzkumná zpráva v češtině

Authors:
Sovják, R.; Fládr, J.; Šťástka, J.; Ing. Michal Frydrýn, Ph.D.
Published:
2022, Extraordinary Dynamic Experiments and Simulations, Les Ulis, EDP Sciences), p. 1-6), ISSN 2261-236X
Annotation:
This paper presents experimental testing of various types of concrete under impact loading by using a 2.8-second drop shaft. The drop shaft is located in the Josef Underground Laboratory and allows dropping a projectile from 40 meters that results in a maximal velocity of 100 km/h. Three basic types of concrete were used in the framework of this study. This was normal strength concrete, fibre-reinforced concrete, and high-performance fibre-reinforced concrete. The slabs were constructed 1700 mm × 500 mm × 70 mm in size and the clear span of the impacted slab was 1500 mm. Damage of the slab was recorded and the velocity of the projectile was measured with the high-speed camera before and after the impact. It was demonstrated that high-performance fibre-reinforced concrete has a higher ability to absorb and dissipate the kinetic energy of the impact that their lower strength counterparts.
DOI:
10.1051/matecconf/202135200005
Type:
Stať ve sborníku z mezinár. konf.

Authors:
Ing. Tomáš Kohout; Ing. Pavel Vrtal, Ph.D.; Ing. Jakub Nováček, Ph.D.; Zikánová, G.
Published:
2022, Sborník příspěvků konference Junior Forensic Science Brno 2022, Brno, Vysoké učení technické v Brně), p. 13-19), ISBN 978-80-214-6063-8
Annotation:
The principle of traffic flow on roads in reduced visibility, especially at night, is different, especially in the length of the visibility. In general, the detection of objects and the speed at which they are perceived depend on the level of lighting and the contrast of the perceived elements. The visibility for road users at night is primarily provided by vehicle headlights, or in the inner city significantly also by public lighting. Long-term results of investigations of traffic accidents registered during periods of reduced visibility show that the occurrence of night accidents is influenced not only by the technical condition of roads, the technical condition of vehicles, driver behaviour, weather conditions, but also, to a significant extent, by visibility in the night road area. The following article discusses the definition of the observed road safety defects for the implementation of the linear night road safety inspection and at the same time presents the statistical results of the pilot project.
Type:
Stať ve sborníku z fakultní konference česky

Authors:
Ing. Luboš Nouzovský, Ph.D.; Ing. Pavel Vrtal, Ph.D.; Ing. Tomáš Kohout; Ing. Zdeněk Svatý, Ph.D.
Published:
2022, Applied Sciences, 12 (6795), ISSN 2076-3417
Annotation:
The paper focuses on road safety assessment. The main objective was to assess the impact of dif-ferent types and sizes of advertising devices as a potential distraction for drivers. Distraction of driver’s attention in real traffic was evaluated using the “Wiener Fahrprobe” structured observa-tion method. As a method for reliable data collection, the eye tracking method was used to accu-rately define the time delay caused by the observation of the advertising device. As part of the as-sessment of the direct impact on drivers, test runs were carried out with 40 drivers on a pre-defined section of road on which different types of advertising devices were present. As an additional, supporting measurement, a vehicle simulator was also used. From the obtained knowledge it was possible to create a unique classification system that can be used to assess the severity of any installed advertising device in general. In the case of distraction, it was found that dynamic advertising devices attract the most attention than conventional static devices and ap-pear to be a significant risk to road safety.
DOI:
10.3390/app12136795
Type:
Článek v periodiku excerpovaném SCI Expanded

Authors:
Ing. Luboš Nouzovský, Ph.D.; Ing. Tomáš Kohout; Ing. Pavel Vrtal, Ph.D.; Ing. Bc. Karel Kocián, Ph.D.
Published:
2022, 2022 Smart City Symposium Prague, Piscataway, IEEE Signal Processing Society), ISBN 978-1-6654-7923-3
Annotation:
The contribution presents selected results of impact tests, based on which a comparison was made between data obtained from the EDR (Event Data Recorder) and data from an independent measuring device. The collection of data was carried out during crash tests from the years 2019 to 2020. The extraction of data recorded from different vehicle sensors was carried out using the CDR (Crash Data Retrieval) system. The aim of this paper is to focus on validating the functionality and usability of the CDR system and its outputs for forensic practice. This knowledge can help to gain significant pre-crash and post-crash information, the validity of which was verified in the presented tests by comparison with a reference independent measurement system. The comparison discussed post-crash car body acceleration, steering wheel angle, yaw rate and evaluation of pre-crash motion (e.g. driver steering intervention). The paper presents extended possibilities for accident analysis using obtained pre-collision data that were not used in the past.
DOI:
10.1109/SCSP54748.2022.9792543
Type:
Stať ve sborníku z prestižní konf.

Authors:
Ing. Jakub Nováček, Ph.D.; Ing. Tomáš Kohout; Ing. Pavel Vrtal, Ph.D.
Published:
2022, Sborník příspěvků konference Junior Forensic Science Brno 2022, Brno, Vysoké učení technické v Brně), p. 35-46), ISBN 978-80-214-6063-8
Annotation:
The main objective of this paper is to present the results of a scientific work, which aims to develop a methodological procedure that will achieve the same assessment of the defects related to road restraint systems. Currently, the level of severity for these defects is rated inconsistently by different teams of road safety auditors. As a result, this makes it very complicated for road managers, who are unable to focus on eliminating the riskiest defects and thus make efficient use of economic and human resources. A mathematical model was created to determine and subsequently verify the level of severity of individual safety system defects. It works on the principle of data classification by a discrete model and its prediction. Increased demands are placed on road restraint systems to ensure that they operate correctly and that they are positioned appropriately. As these safety devices are designed to be crashed into, the level of severity cannot be calculated solely based on recorded road accidents. The determination of severity was carried out by comparing the results of the mathematical model for the two different datasets. In the first case, the model was based on accident data correlated with recorded defects in road restraint systems. In the second case, the model was based on traffic accidents with road restraint systems where no defects were located within the road safety inspection. Based on the comparison of the results of the mathematical model and the established probabilities for each exposure of defects the individual risks were confirmed.
Type:
Stať ve sborníku z fakultní konference česky

Authors:
Ing. Luboš Nouzovský, Ph.D.; Kostěncová, V.; Ing. Michal Frydrýn, Ph.D.
Published:
2021, Soudní inženýrství, 32 (4), p. 36-45), ISSN 1211-443X
Annotation:
With new methods of traffic accident analysis and the modernisation of documentation technology to ensure a sufficient and at the same time high-quality form of evidence comes the possibility of using electronic accident data (also EDR data). The new legislation even requires accident data recording technology as mandatory equipment on new vehicles in the relevant categories from 2022. For vehicles that are already equipped with EDR, data can currently be read out that can greatly facilitate the analysis of a given accident. This paper presents an example of two real-life accidents - one in which the data collected could theoretically shed light on the accident, and the other in which EDR data was available.
DOI:
10.13164/SI.2021.4.9
Type:
Článek v odborném recenzovaném periodiku česky

Authors:
Ing. Pavel Vrtal, Ph.D.; Ing. Tomáš Kohout; Ing. Jakub Nováček, Ph.D.; Ing. Zdeněk Svatý, Ph.D.
Published:
2021, Applied Sciences, 11 (20), ISSN 2076-3417
Annotation:
The article focuses on the assessment and evaluation of the passability in densely populated parts of cities with multi-storey housing estates, in terms of the operation of the integrated rescue system (IRS) in the Czech Republic. The aim of the research is to minimize the arrival times to conduct the intervention as efficiently as possible. The presented problem is caused by unsystematic development of housing estates and the emergence of secondary problems in the form of inability to reach the place of intervention by the larger IRS vehicles. The vision presented in this document presents a systematic approach to improve the serviceability of individual blocks of flats. The main aim is to ensure passability, even for the largest equipment, such as fire engine ladders. Detailed mapping of the selected sites by drones, construction of their digital model, and subsequent virtual verification of the passability by specific vehicle models on identified access roads was performed. The results obtained by this procedure can then be implemented in the navigation of the fire safety forces and facilitate their arrival at the site of intervention. At the end, specific ways are presented in which the whole system can be modified to be able to intuitively change and choose individual access routes in real time, based on the current situation in the area.
DOI:
10.3390/app11209587
Type:
Článek v periodiku excerpovaném SCI Expanded

Authors:
Hála, P.; Ing. Luboš Nouzovský, Ph.D.
Published:
2021, Transportation Research Procedia, Amsterdam, Elsevier B.V.), p. 1042-1049), ISSN 2352-1465
Annotation:
The proportion of motor vehicle crash deaths involving a collision with fixed objects is not decreasing. To address this issue and consequently to decrease transportation hazards, a novel crash cushion comprised of load-bearing blocks was introduced. Its alpha version is easily and inexpensively obtainable; the beta version is suitable for use in harsh environments. In this contribution, the effect of the collision on imaginary vehicle passengers is examined. Besides, the effect of impact velocity on collision severity is discussed and both versions of crash cushions are compared in occupant injury potential. The effect of a combination of crash cushions with different crashworthiness measures is also studied. Inferences drawn from this study can be used by designers and contractors to assess the collision severity and optimize the use of the cushioning elements. The presented cushioning elements can replace stones and solid blocks in cross-drainage culverts, but hypothetically they could also be used in other structures which pose risks around traffic lanes or in underwater protection of bridge piers.
DOI:
10.1016/j.trpro.2021.07.076
Type:
Stať ve sborníku z prestižní konf. (Scopus)

Authors:
Vertal, P.; Ing. Luboš Nouzovský, Ph.D.; Ing. Michal Frydrýn, Ph.D.; Ing. Zdeněk Svatý, Ph.D.; Kolla, E.
Published:
2021, Verkehrsunfall und Fahrzeugtechnik, 59, p. 144-155), ISSN 0724-2050
Annotation:
A widely used tool for reading accident data is the Bosch CDR system. The aim of the crash tests, the results of which form the core of this paper, was to verify the reliability of the read-out data by comparing it with an independent measurement system. The tests were carried out as part of the research project VI20172020108 ‘Development of an innovative method for identifying traffic violations using electronic accident data’.
Type:
Článek v odborném recenzovaném periodiku

Authors:
Konrád, P.; Mára, M.; Fornůsek, J.; Ing. Luboš Nouzovský, Ph.D.; Zatloukal, J.; Ing. Tomáš Kohout; Ing. Pavel Vrtal, Ph.D.; Sovják, R.; Konvalinka, P.
Published:
2021, Advances in Structural Engineering, 24 (11), ISSN 2048-4011
Annotation:
The article presents a mobile anti-vehicle barrier created from a high-performance fibre-reinforced concrete, which resembles a historical design of the Czech Hedgehog barrier. The performance of this design when subjected to a moderate velocity vehicle impact was evaluated. A preliminary crash test provided basic data to perform an optimisation of the design using numerical simulations conducted in LS-DYNA. Several key observations were made regarding the crucial role of the barrier-surface interactions and overall barrier behaviour. Based on the simulations, improved geometry of the barrier was proposed and subjected to more full-scale crash tests with various barrier placements. The improved barrier design was able to stop an ordinary road vehicle weighing 1300 kg moving with a velocity of 48 km/h while retaining beneficial characteristics, most importantly low weight.
DOI:
10.1177/1369433221997728
Type:
Článek v periodiku excerpovaném SCI Expanded

Authors:
Ing. Jakub Nováček, Ph.D.; Ing. Tomáš Kohout
Published:
2021, Transport for Today’s Society - Proceedings, Bitola, University St Kliment Ohridski Bitola), p. 222-225), ISBN 978-9989-786-63-1
Annotation:
Europe has committed to reduce the number of serious road traffic accidents. This requires building a safe infrastructure. Safety inspections are used to measure and increase the road safety. To fulfil the stated goals, the safety inspection must also be carried out at night, when specific road defects are encountered.
Type:
Stať ve sborníku z mezinár. konf.

Authors:
Ing. Pavel Vrtal, Ph.D.; Ing. Jakub Nováček, Ph.D.
Published:
2021, Transport for Today’s Society - Proceedings, Bitola, University St Kliment Ohridski Bitola), p. 234-237), ISBN 978-9989-786-63-1
Annotation:
The project aims to improve the road safety by identification of potentially risky locations on roads that show similarities to known accident locations. This contribution presents an algorithm that is combining the commonly used methods and the road characteristics identified through the road network analysis and road passport. It is able to search for potentially risky locations on the road network and alert the road managers to the potentially risk prone sites.
Type:
Stať ve sborníku z mezinár. konf.

Authors:
Ing. Tomáš Kohout; Ing. Pavel Vrtal, Ph.D.
Published:
2021, Transport for Today’s Society - Proceedings, Bitola, University St Kliment Ohridski Bitola), p. 214-217), ISBN 978-9989-786-63-1
Annotation:
This conference paper discusses a new analytical approach to the evaluation of traffic safety at the railway crossings. The new method is based on the use of ontological principles. The ontological tools present a comprehensive decision-making tool, will can be applied to any potential hazardous railway crossing on a road or rail network.
Type:
Stať ve sborníku z mezinár. konf.

Authors:
Ing. Tereza Šimková; Ing. Tomáš Kohout; Ing. Pavel Vrtal, Ph.D.; Ing. Jakub Nováček, Ph.D.
Published:
2020, Young Transportation Engineers Conference 2020, Praha, Fakulta dopravní), p. 158-163), ISBN 978-80-01-06793-2
Annotation:
Road safety systems are one of the elements of passive safety. Their purpose is to protect risky places in the surroundings of roads and to protect the vehicle crew and minimize the consequences of car accidents. The correct effectiveness of road safety systems occurs provided that they are designed correctly. Otherwise, the consequences of traffic accidents may be adversely affected. This article presents an analysis and evaluation of deficits and accidents related to road safety systems on I. class roads. The main purpose is to create catalog sheets of crash barriers, which include the basic parameters of individual types of barriers and thus facilitate the identification of deficits that could have an adverse effect on the consequences of traffic accidents.
Type:
Stať ve sborníku z mezinár. konf. cizojazyčně

Authors:
Hála, P.; Ing. Michal Frydrýn, Ph.D.; Máca, P.; Sovják, R.
Published:
2020, Thin-Walled Structures, 148, ISSN 0263-8231
Annotation:
Even though the number of deadly traffic incidents is decreasing, the proportion of motor vehicle crash deaths involving a collision with fixed objects is not. To address this issue, a novel load-bearing energy-absorbing system comprised of brittle blocks with thin-walled cellular structures is presented here, laying the foundation for the assessment of the system’s crashworthiness. Six brittle hexagonal cellular structures were subjected to quasistatic and impact tests. The crushing process, force-displacement curves, and a wide range of indicators of crashworthiness were examined. Samples with different levels of crashworthiness were identified and several observations that could guide future crashworthiness design are given. Our findings show that relatively small changes in the design can lead to production of blocks with distinguishable levels of crashworthiness.
DOI:
10.1016/j.tws.2019.106578
Type:
Článek v periodiku excerpovaném SCI Expanded

Authors:
Mára, M.; Konrád, P.; Fornůsek, J.; Zatloukal, J.; Ing. Michal Frydrýn, Ph.D.; Ing. Luboš Nouzovský, Ph.D.; doc. Ing. Tomáš Mičunek, Ph.D.; Sovják, R.
Published:
2020, Materials Today: Proceedings, Amsterdam, Elsevier B.V.), p. 162-167), ISSN 2214-7853
Annotation:
Research presented in this paper is aimed to investigate the possibility of using a mobile concrete barrier based on a design of the Czech Hedgehog, which was a steel barrier developed before the Second World War to stop slow-moving armoured vehicles. The design is revisited using an ultra-high-performance fibre-reinforced concrete (UHPFRC) with additional steel reinforcement bars. Crash test experiments are conducted using an ordinary road vehicle moving at 48 km/h (30 mph). Final barrier design is capable of stopping the vehicle, although at least two rows of barriers were needed.
DOI:
10.1016/j.matpr.2020.04.182
Type:
Stať ve sborníku z prestižní konf.

Authors:
Ing. Michal Frydrýn, Ph.D.; Ing. Luboš Nouzovský, Ph.D.; doc. Ing. Tomáš Mičunek, Ph.D.; Ing. Zdeněk Svatý, Ph.D.
Published:
2020, ExFoS - Expert Forensic Science XXIX. mezinárodní vědecká konference soudního inženýrství, Brno, Vysoké učení technické v Brně - Ústav soudního inženýrství), p. 114-125), ISBN 978-80-214-5829-1
Annotation:
The paper presents crashtest with comparison of EDR - Event Data Recorder data with data from external independent measure systems. Comparison deals with postcrash acceleration of car body and with precrash actions (drivers reaction – steering). The paper presents extended possibilities of analysis of road traffic accidents using precrash data of steering input and Yaw rate of vehicle. This paper also describes news in EU legislation related to EDR data.
Type:
Stať ve sborníku z mezinár. konf. česky

Authors:
Kostěncová, V.; Ing. Luboš Nouzovský, Ph.D.; Ing. Jakub Nováček, Ph.D.
Published:
2020, Technika moderních vozidel ve vztahu k objasňování dopravních nehod, PROPERUS s.r.o.), p. 353-396), ISBN 978-80-904944-3-5
Annotation:
The chapter deals with the issue of Event Data Recorder. Mainly their development, data structure and usability. This accident data can be read out using tools designed for this purpose, and there are various methods of data acquisition.
Type:
Kapitola ve vědecké knize česky

Authors:
Kostěncová, V.; Ing. Luboš Nouzovský, Ph.D.
Published:
2020, ISBN 978-80-01-06705-5
Annotation:
The main content is the analysis of the basic principles of technology EDR or Event Data Recorder. This is an airbag control unit function that can record and store accident data. The origin of this technology can be found in the United States. It has been going through various developmental stages since the 1970s and has made significant progress in the analysis of road accidents in recent years.
Type:
Jiná kniha česky

Authors:
Ing. Tomáš Kohout; Ing. Jakub Nováček, Ph.D.; Ing. Pavel Vrtal, Ph.D.
Published:
2020, Young Transportation Engineers Conference 2020, Praha, Fakulta dopravní), p. 151-157), ISBN 978-80-01-06793-2
Annotation:
The safety of the through roads within built-up areas is undoubtedly an important part of a comprehensive view of road safety. Right in these places, there are interactions between the road vehicle and the most vulnerable road user. For this reason, it is necessary to pay attention to the implementation of adequate infrastructure for all traffic participants in accordance with the safe formation of the roads which should segregate individual groups as much as possible. This conference paper presents a methodology developed by the author. The methodology complements useful tools such as road safety inspection and accident analysis, and is used to assess the safety of the transit section across continuously built-up areas. The assessment is based on the monitoring and evaluation of defined parameters influencing the level of safety. The aim is to calm down the traffic on the through roads within built-up areas and to ensure a socially acceptable level of road safety.
Type:
Stať ve sborníku z mezinár. konf. cizojazyčně

Authors:
Ing. Zdeněk Svatý, Ph.D.; Stehel, S.; Vertaľ, P.; Imrich, I.
Published:
2020, ExFoS - Expert Forensic Science XXIX. mezinárodní vědecká konference soudního inženýrství, Brno, Vysoké učení technické v Brně - Ústav soudního inženýrství), p. 200-209), ISBN 978-80-214-5829-1
Annotation:
The article deals with the use of a photogrammetry method for the purpose of documenting the traffic accident scene by the police during low light conditions and adverse weather condition. The University of Žilina with the Slovak Police, is currently doing research to determine the use of photogrammetry under adverse light and weather conditions. The close range photogrammetry and its subsequent output (3D model of the accident site) could be a source of information for experts in the future. It could also become invaluable evidence for judges, prosecutors and lawyers can better imagine the situation at the traffic accident scene at this time when the accident caused. The paper provides a set of activities necessary for the application of the photogrammetric method of documenting the accident site. The visual and spatial reconstruction is presented on 2 study cases, which were made during the night and heavy snowfall. For each output are given general procedures of spatial reconstruction and the resulting outputs with their practical use. Finally, the limits and possibilities of practical use of photogrammetry for the purposes of Police and expert evidence are summarized.
Type:
Stať ve sborníku z mezinár. konf. česky

Authors:
doc. Ing. Josef Kocourek, Ph.D.; Ing. Jakub Nováček, Ph.D.; Tesař, J.; Novák, T.
Published:
2020, Silniční obzor, 81 (5), p. 124-129), ISSN 0322-7154
Annotation:
The methodology was elaborated as a part of the research project of the Ministry of the Interior of the Czech Republic VI2VS/571, program BV III/1-VS, project VI20172019071 called Analysis of visibility of road users in order to increase their safety at dusk and at night. The aim of the article is to introduce to the professional public the basic principles of the methodology, which extends the methodology of road safety inspection in accordance with EU Directive 2008/96/EC processed by the Transport Research Centre, v.v.i. in 2013 and supplemented by the requirements of the EU Premium Light pro version 3.0 of October 2017.
Type:
Článek v odborném recenzovaném periodiku česky

Authors:
Ing. Zdeněk Svatý, Ph.D.; doc. Ing. Tomáš Mičunek, Ph.D.; Ing. Jakub Nováček, Ph.D.
Published:
2020, Soudní inženýrství, 31 (1), p. 9-16), ISSN 1211-443X
Annotation:
Forensic expert analysis can be characterized by a limited or missing information. Information that may be essential for the proper evaluation of the traffic accident. New measurement techniques and technologies is one of the approaches that seems to be able to, at least partly, counter this issue. Laser scanning, multi-image photogrammetry, UAV imaging or digital total stations allow acquisition of more accurate and detailed documentation of the scene of the accident, thus extend the capabilities of experts subsequently conducting the forensic analysis. The aim of this paper is to show the possibilities how to work with obtained spatial data, the possibilities for analyses and what to be careful while using them. Practical examples of cases solved by the authors are presented. The aim is to present the how can the real data be used, while taking into account the aspects and limitations of the expert activities.
DOI:
10.13164/SI.2020.1.9
Type:
Článek v odborném recenzovaném periodiku česky

Authors:
Ing. Zdeněk Svatý, Ph.D.; doc. Ing. Tomáš Mičunek, Ph.D.; Ing. Jakub Nováček, Ph.D.
Published:
2020, ExFoS - Expert Forensic Science XXIX. mezinárodní vědecká konference soudního inženýrství, Brno, Vysoké učení technické v Brně - Ústav soudního inženýrství), p. 228-237), ISBN 978-80-214-5829-1
Annotation:
Forensic expert analysis can be characterized by a limited or missing information. Information that may be essential for the proper evaluation of the traffic accident. New measurement techniques and technologies is one of the approaches that seems to be able to, at least partly, counter this issue. Laser scanning, multi-image photogrammetry, UAV imaging or digital total stations allow acquisition of more accurate and detailed documentation of the scene of the accident, thus extend the capabilities of experts subsequently conducting the forensic analysis. The aim of this paper is to show the possibilities how to work with obtained spatial data, the possibilities for analyses and what to be careful while using them. Practical examples of cases solved by the authors are presented. The aim is to present the how can the real data be used, while taking into account the aspects and limitations of the expert activities.
Type:
Stať ve sborníku z mezinár. konf. česky

Authors:
Ing. Jakub Nováček, Ph.D.; Ing. Pavel Vrtal, Ph.D.; Ing. Tomáš Kohout; Ing. Tereza Šimková
Published:
2020, Young Transportation Engineers Conference 2020, Praha, Fakulta dopravní), p. 164-170), ISBN 978-80-01-06793-2
Annotation:
Various modified safety tools are used in the Czech Republic, but also abroad to assess the level of road traffic safety at road, based on the principles of road safety inspection. Within the Czech Republic, the identified road safety deficits related to restraint devices are assigned a severity on a three-point scale, which is defined in the methodology certified by the Ministry of Transport of the Czech Republic. The specification of individual stages is very general. The reason can be seen in the need to include all types of possible defects while maintaining the required clarity of the description of the degree of risk. The aim of the topic is to inform about these problems and their consequences in determining the different severity of the same types of deficits and the presentation of their solutions.
Type:
Stať ve sborníku z mezinár. konf. cizojazyčně

Authors:
Ing. Pavel Vrtal, Ph.D.; Ing. Tereza Šimková; Ing. Tomáš Kohout; Ing. Jakub Nováček, Ph.D.
Published:
2020, Young Transportation Engineers Conference 2020, Praha, Fakulta dopravní), p. 195-201), ISBN 978-80-01-06793-2
Annotation:
Verification of the passability of fire trucks in cramped conditions, especially in densely built-up housing estates is one of the partial parts of the project which is implemented in the Faculty of Transportation Sciences, Czech Technical University in Prague in cooperation with the fire brigade of the Central Bohemian Region and the Capital City of Prague. Currently, the project is aimed at thoroughly mapping the situation in the densely populated areas of the city and finding a systematic solution to effectively implement the transit of fire-fighting vehicles. The study also aims at the implementation of new models of swepth paths used in the design activity.
Type:
Stať ve sborníku z mezinár. konf. cizojazyčně

Authors:
Ing. Luboš Nouzovský, Ph.D.; Ing. Martin Jacura, Ph.D.; Ing. Ondřej Doležal; Ing. Michal Drábek, Ph.D.; Ing. Patrik Horažďovský, Ph.D.; Ing. Josef Mík, Ph.D.; Ing. Jiří Růžička, Ph.D.; Ing. Michaela Kalivodová; Ing. Petr Richter, Ph.D.; Ing. Michaela Jurko; doc. Ing. Michal Matowicki, Ph.D.
Published:
2020, ISBN 978-80-01-06793-2
Type:
Sborník z mezinár. konf. cizojazyčně

Authors:
Ing. Bc. Karel Kocián, Ph.D.; doc. Ing. Josef Kocourek, Ph.D.; Ing. Luboš Nouzovský, Ph.D.; doc. Ing. Zuzana Radová, Ph.D.; Ing. Zdeněk Svatý, Ph.D.
Published:
2019, Znalectvo, XV. (1), p. 26-32), ISSN 1335-1133
Annotation:
The article presents a project which was focused on the topic often discussed by the professional public and the media, which is influencing road safety by advertising facilities. The research was focused mainly on finding out the influence of variable advertising devices on drivers with regard to the growing trend of using LED lighting devices and on the subsequent proposal to modify the legislative framework governing their use. The research has defined generally applicable recommendations. The proposed solutions are based on a combination and synthesis of various methodological approaches, including the location and classification of the occurrence of advertising facilities along the Czech backbone network, statistical evaluation and analysis of traffic accidents, and monitoring of traffic conflicts. The solutions also included psychological analyzes of the impact of the presence of advertising equipment on drivers in real and simulated scenarios, analysis of the number and length and point of view of the driver using eye tracking techniques and the assessment of advertising equipment as a light emitting object. As part of the assessment of direct influence on drivers, test drives focused on real-time distraction tests were carried out using the Wiener Fahrprobe Structured Observation method as well as on an advanced vehicle simulator, where the theory of vehicle simulators and the principle of eyetracking were used. in both real and virtual environments. The aim of these tests was at the same time to verify the applicability of the findings of world research on the specifics of the Czech transport network.
Type:
Článek v odborném recenzovaném periodiku česky

Authors:
Ing. Luboš Nouzovský, Ph.D.; Kostěncová, V.
Published:
2019, Znalec, xxix (2), p. 29-34), ISSN 1805-6881
Annotation:
The purpose of article „CDR system and methods of retrieving EDR data“ is to introduce ways of reading and interpreting accident data that are stored in EDR, a function of the airbag control unit. EDR is a function designed to record and store pre-crash and crash data. The data are retrieved using tools designed for this purpose, and there are various methods of accessing the data. The article describes in detail individual methods where the use of a particular procedure depends on several factors. The most widespread data acquisition tools such as Crash Data Retrieval and Hyundai and Kia EDR Tool are introduced, including the outputs and complications that may occur when reading data.
Type:
Článek v odborném recenzovaném periodiku česky

Authors:
Ing. Luboš Nouzovský, Ph.D.; Ing. Michal Frydrýn, Ph.D.; doc. Ing. Tomáš Mičunek, Ph.D.; Ing. Zdeněk Svatý, Ph.D.; Ing. Jakub Nováček, Ph.D.
Published:
2019, 2019 Konference - 25 let Fakulty dopravní, Praha, České vysoké učení technické v Praze), p. 122-126), ISBN 978-80-01-06545-7
Annotation:
The article focuses on the VIMOT project, which is being carried out by the Department of Forensic Experts in Transportation, and whose content is, among other things, the proposal of a new method for detecting, proving and combating crime related to motor vehicles and its implementation in practice. One of the key parts of the project is presented in detail, namely the impact tests oriented to verify the functionality and usability of EDR (Event Data Recorder) data and its reading and interpretation by the CDR system. CDR, or Crash Data Retrieval, is an electronic system that allows the reading of data recorded from various sensors and control units of a given car. It can thus provide users with pre-crash and post-crash data, the realism of which has been verified against a reference system in the tests presented.
Type:
Stať ve sborníku z fakultní konference česky

Authors:
Mára, M.; Konrád, P.; Fornůsek, J.; Zatloukal, J.; Ing. Michal Frydrýn, Ph.D.; doc. Ing. Tomáš Mičunek, Ph.D.; Sovják, R.
Published:
2019, 36th Danubia Adria Symposium on Advances in Experimental Mechanics, Pilsen, University of West Bohemia), p. 127-128), ISBN 978-80-261-0876-4
Annotation:
Mobile barriers can be used for more flexible protection against vehicle ramming attacks and can be easily removed when not needed. Since these barriers are usually not connected to the surface, their working principle usually uses just their mass and friction to stop the incoming vehicle. This means that they are very hard to set up, remove and transport. It is therefore desirable to have relatively light mobile barriers, that would interact with the impacting vehicle in such a way, that mass of the barrier is not the main stopping principle. One such barrier is the Czech Hedgehog developed in the 1930s for military defence. The barrier consisted of three steel beams of the same length connected in their centres. The intended stopping principle was that the Hedgehog would roll underneath a moving vehicle, lifting its tracks off the ground, therefore completely immobilising it.
Type:
Stať ve sborníku z prestižní konf. (Scopus)

Authors:
Kostěncová, V.; Ing. Luboš Nouzovský, Ph.D.
Published:
2019, Znalec, xxix (2), p. 23-28), ISSN 1805-6881
Annotation:
The article focuses on the principle of function of EDR technology. EDRs are devices, usually part of a specific control unit in vehicle able to record information related to vehicle crashes or accidents. Significant progress has been made in the United States in the analysis of road accidents in recent years, mainly through the use of data captured by EDR. This technology has gone through various stages of development since the 1970s, therefore, the historical development of technology is outlined and then the term Event Data Recorder is defined. This article describes individual control units of which EDR part is and also the principle of function of accident data recorders. Last but not least, the article briefly introduces EDR output, i.e. data that can be used as objective evidence for the reconstruction of a traffic accident after thorough examination.
Type:
Článek v odborném recenzovaném periodiku česky

Authors:
Kostěncová, V.; Ing. Luboš Nouzovský, Ph.D.
Published:
2019, Znalectvo, XV. (1), p. 12-15), ISSN 1335-1133
Annotation:
The content of the article is to discuss the basic principles of the technology EDR - Event Data Recorder. This is an airbag control unit function that can record and store accident data. The origin of this technology can be found in the United States. This technology has gone through various stages of development since the 1970s. Significant progress has been made in the analysis of road accidents in recent years through the use of data captured by EDR.
Type:
Článek v odborném recenzovaném periodiku česky

Authors:
Ing. Luboš Nouzovský, Ph.D.; Ing. Zdeněk Svatý, Ph.D.; Ing. Michal Frydrýn, Ph.D.; Vertal, P.; Kolla, E.
Published:
2019, 28th Annual Congress of the European Association for Accident Research and Analysis (EVU), Graz, European Association for Accident Research and Analysis), p. 291-302), ISBN 978-80-554-1260-3
Annotation:
The article focuses on reading, interpretation and validation of EDR (Event Data Recorder) accident data using the CDR system. EDR or Event Data Recorder is a function of the airbag control unit, which records certain vehicle parameter data at the time of a specific event (e.g. accident). Various tools, such as the Bosch Crash Data Retrieval (CDR), can be used for subsequent data reading. The correctness and accuracy were assessed for obtained accidental data (pre- and post-crash). The presented results are one of the partial outputs of the VIMOT 4U project and were obtained as part of the crash tests carried out in autumn 2018.
Type:
Stať ve sborníku z mezinár. konf.

Authors:
Kácovský, J.; Ing. Bc. Karel Kocián, Ph.D.; doc. Ing. Josef Kocourek, Ph.D.
Published:
2019, Silniční obzor, 80 (4), p. 107-112), ISSN 0322-7154
Annotation:
The Faculty of Transportation Sciences of the Czech Technical University in Prague provided a list of 50 dangerous railway crossings on which a safety inspection was carried out. The list was provided to the Central Bohemia Region. The article is focused mainly on recommended systematic measures of the most risky railway crossings which were discussed with practice (the Operation and Organization of Rail Transport and the Regional Road Administration and Maintenance).
Type:
Článek v odborném recenzovaném periodiku česky

Authors:
Hála, P.; Sovják, R.; Munduchová, M.; Majer, V.; doc. Ing. Tomáš Mičunek, Ph.D.
Published:
2019, Second International Interactive Symposium on Ultra-High Performance Concrete, Ames, Iowa, Iowa State University)
Annotation:
Statistics indicates that one quarter of deadly traffic accidents are caused by the collision of vehicle with non-deformable objects. To address this issue and to decrease the transportation hazards, we developed novel Energy Absorbing System (EAS). It is comprised of blocks with cellular structures made of Ultra-High Performance Concrete (UHPC). These blocks are able to absorb impact energy because of the gradual brittle fracture process which occurs in the cellular structures and at the same time they are able to carry the weight of the structure above or to withstand the load generated by crossing vehicles. The UHPC used makes EAS suitable for use in harsh environmental conditions while still having reasonable production costs and the ability to be mass produced. All components of UHPC are commonly available in large volumes for a reasonable price and the resulting material can be shaped into various forms, which makes it easily adjustable to any possible impacting mass or velocity in order to control impact force and deceleration. It was demonstrated that the EAS comprised of blocks with cellular structures is able to absorb impact energy because of the gradual brittle fracture process which occurs in the cellular structure. During the conducted car crash test, the crumple zone of the car was not crumpled; car bounce of was eliminated and gradual deceleration of the car was recorded. The ability of the EAS made of UHPC to gradually decelerate impacting cart was demonstrated using experimental and numerical methods. The main objective of our recent project is to further improve the EAS in cooperation with the private sector and to begin its mass production.
Type:
Abstrakt ve sborníku z mezinár. konf.

Authors:
Ing. Zdeněk Svatý, Ph.D.; Ing. Bc. Karel Kocián, Ph.D.; doc. Ing. Tomáš Mičunek, Ph.D.
Published:
2019, The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences (ISPRS Archives) - Volume XLII-5/W3, Munich, ISPRS), p. 143-148), ISSN 2194-9034
Annotation:
Effective and safe transportation infrastructure presents one of the crucial conditions for functional society. Its ceaseless development and construction can be taken as a proof of its importance even despite the corresponding financial and time demands. The complexity and scale of the projects related to transportation infrastructure presents an ideal field for implementation of the BIM approaches. However, it is necessary to implement the BIM to the whole life cycle of the transport structure, especially not only to the pre-investment and investment phases but also to the operation and maintenance. For every road infrastructure, it is important to observe the performance of the road, behaviour of road users and evaluate the resulting safety risks, to be able to correspond with adequate and effective measures and to secure sufficient level of safety. The paper aims to present an implementation of the road safety aspects and statistics into the processes of BIM applications and strategies, which are prepared on the base of Government Resolution No 958, on the importance of the Building Information Modelling (BIM) in the Czech Republic. The accident statistics, safety audits and inspections presents a valuable source of information that should be adequately implemented with the BIM processes.
DOI:
10.5194/isprs-archives-XLII-5-W3-143-2019
Type:
Stať ve sborníku z prestižní konf. (Scopus)

Authors:
Kostěncová, V.; Ing. Luboš Nouzovský, Ph.D.
Published:
2019, Znalectvo, XV. (1), p. 15-19), ISSN 1335-1133
Annotation:
The scope of the article is an analysis of individual national and also common European legislative amendments to the use of one of the functions of the airbag control unit - the Event Data Recorder (EDR). This issue has a major impact on the use of EDR in practice and access to data and their usefulness in traffic accident analysis.
Type:
Článek v odborném recenzovaném periodiku česky

Authors:
Ing. Zdeněk Svatý, Ph.D.; Drahotský, I.; Pavelka, K.; doc. Ing. Tomáš Mičunek, Ph.D.
Published:
2019
Annotation:
The dissertation deals with methods to improve the quality, scale and accuracy of obtained photographic information about traffic accidents. Close-range and UAV photogrammetry is used in combination with the digital image correlation methods for processing of acquired images. Presented are not only methods for documentation of traffic accidents but also procedures used in the field of forensic engineering to improve the quality of the resulting forensic analysis. Individual procedures are verified by experimental measurements and case studies on real-life traffic accidents, crash tests and simulated traffic accident sites.
Type:
Disertační práce (PhD)

Authors:
Ing. Zdeněk Svatý, Ph.D.
Published:
2019, Silniční obzor, 80 (12), p. 323-327), ISSN 0322-7154
Annotation:
The contribution deals with methods to improve the quality, scale and accuracy of obtained photographic information about traffic accidents. Close-range and UAV photogrammetry is used in combination with the digital image correlation methods for processing of acquired images. Presented are not only methods for documentation of traffic accidents but also procedures used in the field of forensic engineering to improve the quality of the resulting forensic analysis. Individual procedures were verified by experimental measurements and case studies on real-life traffic accidents, crash tests and simulated traffic accident sites.
Type:
Článek v odborném recenzovaném periodiku česky

Authors:
Ing. Luboš Nouzovský, Ph.D.; Ing. Michal Frydrýn, Ph.D.
Published:
2019, Pražská technika, 21 (6), p. 19-19), ISSN 1213-5348
Annotation:
Faculty of Transportation Sciences CTU in Prague has permission for forensic activities from the 22th July 2002 for range of transportation technology and communication. A specialised Department of Forensic Experts in Transportation was established at the college to manage the expert activity. The staff of this institute are mainly involved in road accident analysis and the associated expert reports, but also help with the processing of expert reports from other areas of transport, which are primarily handled by other faculty members from other institutes/departments.
Type:
Článek v populárně vědeckém periodiku česky

Authors:
Kobosil, M.
Published:
2018, Young Transportation Engineers Conference 2018, Praha, Fakulta dopravní), ISBN 978-80-01-06464-1
Annotation:
The amount of independent recording devices on our markets is increasing and they are using the full range of physical quantities and video sequences to measure a drive dynamics of motorcycles. From simple applications to a mobile phone, through onboard cameras, to sophisticated car black boxes. The usage of these devices for the vehicle accident analysis is undoubtedly advantageous. This article is aimed to a issue of analysis of data acquired from these systems, supported by the experiment on the motorcycle. There are definition of sources of errors and uncertainties and it thinks about possible usage of this data analysis. This article is not a comparison of individual devices, but it gives a impulse for the expert discussion on the possibilities of using these independent systems for the motorcycle accident analysis.
Type:
Stať ve sborníku z mezinár. konf. cizojazyčně

Authors:
Vertal, P.; Ing. Luboš Nouzovský, Ph.D.; Ing. Michal Frydrýn, Ph.D.; doc. Ing. Tomáš Mičunek, Ph.D.; Ing. Zdeněk Svatý, Ph.D.; Kolla, E.
Published:
2018, Verkehrsunfall und Fahrzeugtechnik, 56, p. 328-337), ISSN 0724-2050
Annotation:
This Review is about reading, interpreting and validating EDR event data (Event Data Recorder) with the CDR system. The Event Data Recorder is a function of the airbag control unit that records vehicle parameters at the time of a particular event (eg, accident). Various tools, such as Bosch Crash Data Retrieval (CDRJ), can be used for the subsequent data readout and the accuracy was evaluated for the random data obtained (pre- and post-crash) .The results presented are partial results of the project VIMOT 4U and were determined during crash tests in autumn 2017.
Type:
Článek v odborném recenzovaném periodiku

Authors:
Vertal, P.; Ing. Luboš Nouzovský, Ph.D.; Ing. Michal Frydrýn, Ph.D.; doc. Ing. Tomáš Mičunek, Ph.D.; Ing. Zdeněk Svatý, Ph.D.; Kolla, E.
Published:
2018, EVU 2018 CONGRESS, Graz, European Association for Accident Research and Analysis), ISBN 978-80-554-1260-3
Annotation:
The article focuses on reading, interpretation and validation of EDR (Event Data Recorder) accident data using the CDR system. EDR or Event Data Recorder is a function of the airbag control unit, which records certain vehicle parameter data at the time of a specific event (e.g. accident). Various tools, such as the Bosch Crash Data Retrieval (CDR), can be used for subsequent data reading. The correctness and accuracy were assessed for obtained accidental data (pre- and post-crash). The presented results are one of the partial outputs of the VIMOT 4U project and were obtained as part of the crash tests carried out in autumn 2017.
Type:
Stať ve sborníku z mezinár. konf.

Authors:
Ing. Luboš Nouzovský, Ph.D.
Published:
2018, Young Transportation Engineers Conference 2018, Praha, Fakulta dopravní), ISBN 978-80-01-06464-1
Annotation:
The movement of a rider on a bicycle is influenced, like other objects and activities, by physical and biomechanical rules. The present article is dedicated to the brief description of the movement of the cyclist - bicycle system and the factors acting on it. A thorough understanding of the rules of movement is necessary both for the proper description of the movement, but also for the selection of suitable measuring devices and procedures for quantification of the influence of individual factors.
Type:
Stať ve sborníku z mezinár. konf. česky

Authors:
Hála, P.; Sovják, R.; doc. Ing. Tomáš Mičunek, Ph.D.; Ing. Michal Frydrýn, Ph.D.; Ing. Luboš Nouzovský, Ph.D.
Published:
2018, Thin-Walled Structures, 122, p. 597-605), ISSN 0263-8231
Annotation:
This paper lays the foundation for the development of a high-load bearing energy absorbing system with controlled deformation. Brittle ceramic blocks made of bricks with thin-walled cellular structures are presented and tested with impact loading. The authors demonstrate that such blocks are able to absorb impact energy because of the gradual brittle fracture process which occurs in the cellular structures. Full-scale specimens were subjected to laboratory impact tests: two non-deformable flat-nosed cart tests as well as two full-scale field crash tests involving passenger vehicles with crumple zones. The experiments were designed specifically to prove that block specimens are able to gradually absorb different levels of impact energy and to examine the applicability of using such blocks in the design of cross-drainage culverts. Based on a comparison of the two collisions with test culverts, the authors show that consequences of the collision can be significantly reduced by using brittle blocks with cellular structures in culverts. In fact, the crumple zone of the passenger vehicle which collided with a brittle block culvert was not crumpled; vehicle bounce off was eliminated and gradual deceleration of the vehicle was recorded.
DOI:
10.1016/j.tws.2017.10.050
Type:
Článek v periodiku excerpovaném SCI Expanded

Authors:
Ing. Luboš Nouzovský, Ph.D.; Ing. Zdeněk Svatý, Ph.D.
Published:
2018, Pražská technika, 20 (1), p. 13-13), ISSN 1213-5348
Annotation:
The article deals with a topic that is often discussed by the experts and the media, namely the influence of traffic safety on advertising facilities and a project solved on this topic at the Faculty of Transportation in 2016 and 2017 within the framework of the Security Research Program for the needs of the state.
Type:
Článek v populárně vědeckém periodiku česky

Authors:
Jankovič, M.
Published:
2018
Annotation:
This bachelor's thesis deals with getting to know the problematics of driving and impact dynamics, explaining the use of sensors and measurement devices used for measuring driving and impact dynamics, summing up an overview of possible characteristics of those devices, analysis and comparsion of each sensor according to its function, realization or application. The practical part of this thesis describes processes, preparations and evaluation of two discrete driving and impact dynamics tests, which were performed within writing this work.
Type:
Oponovaná výzkumná zpráva v češtině

Authors:
Fogl, T.; Ing. Luboš Nouzovský, Ph.D.
Published:
2018, Znalec, XXVIII, p. 46-54), ISSN 1805-6881
Annotation:
This article focuses primarily on an experiment in which the intuitiveness of the control of a means of transport, the suitability of which in the city is often discussed - personal transporter - has been verified. Described is both the personal transporter and the used measuring technique and its locating. Legislation is mentioned, not only in the Czech Republic and its capital, but also in comparison with abroad.
Type:
Článek v odborném recenzovaném periodiku česky

Authors:
Ing. Luboš Nouzovský, Ph.D.; Fogl, T.; Kostěncová, V.
Published:
2018, Young Transportation Engineers Conference 2018, Praha, Fakulta dopravní), ISBN 978-80-01-06464-1
Annotation:
The article „Personal transporter safety“ focuses on the study with an aim to evaluate the control intuitiveness and learning speed of the personal transporter. Introduced is the personal transporter, used measuring devices and its placement. Every year, a degree of automation is increasing and some steps need to be done to solve the crowd of cars in city streets, such as the introduction of a greener, smaller and more efficient means of transport that could be safely used in day-to-day operation in urban agglomerations. Solution is the personal transporter. This article analyzes the effect of the rider’s parametres and behaviour on the dynamics of driving this vehicle.
Type:
Stať ve sborníku z mezinár. konf. cizojazyčně

Authors:
Ing. Zdeněk Svatý, Ph.D.; Ing. Bc. Karel Kocián, Ph.D.; Lenková, A.
Published:
2018, Soudní inženýrství, 29 (1), p. 30-34), ISSN 1211-443X
Annotation:
Reconstruction of accident site has a major impact of any subsequent forensic evaluation. The accuracy and extend of obtained information directly affects the possibilities of resulting analysis. The aim of this contribution is to present a simple utilisation of photogrammetric measurements in combination of unmanned aircraft systems to create a very accurate and detail orthographic images of crash sites (GSD of 1cm/px). In total, ten crash tests measurements were used to evaluate the possibilities of proposed approach. Generated orthophotos were compared with conventional measuring techniques and further assed. The resulting information value and achieved accuracy of results (up to 2 cm) proved its viability and suitability for wider use.
Type:
Článek v odborném recenzovaném periodiku česky

Authors:
Ing. Zdeněk Svatý, Ph.D.; Ing. Bc. Karel Kocián, Ph.D.; Lenková, A.
Published:
2018, Sborník příspěvků konference Expert Forensic Science Brno 2018, Brno, Ústav soudního inženýrství), p. 244-252), ISBN 978-80-214-5600-6
Annotation:
Reconstruction of accident site has a major impact of any subsequent forensic evaluation. The accuracy and extend of obtained information directly affects the possibilities of resulting analysis. The aim of this contribution is to present a simple utilisation of photogrammetric measurements in combination of unmanned aircraft systems to create a very accurate and detail orthographic images of crash sites (GSD of 1cm/px). In total, ten crash tests measurements were used to evaluate the possibilities of proposed approach. Generated orthophotos were compared with conventional measuring techniques and further assed. The resulting information value and achieved accuracy of results (up to 2 cm) proved its viability and suitability for wider use.
Type:
Stať ve sborníku z mezinár. konf. cizojazyčně

Authors:
Ing. Zdeněk Svatý, Ph.D.; Burda, J.; Žižka, L.
Published:
2018, Final Papers - Slope Stability Symposium 2018, Bco Congresos), ISBN 978-84-09-01295-4
Annotation:
Open-cast mine environments are generally suitable for UAS aplication, particularly due to visual variation and absence of dense vegetation within the area. UAS flights were implemented monthly as a method of landslide monitoring within open-cast mine during 2016 – 2017. Main outcomes were digital surface models and detailed ortophotos resulting from the aerial photogrammetric measurements. Based on the 2016 – 2017 experience, following settings can be recommended for future use of UAV: optimal ground sample distance of 1.5 px/cm, 60% longitudinal overlap and 50% side ovelap between images, flight speed up to of 4 - 5 m/s. In compliance with the above recommendations, UAS DSMs can achieve accuracies of ± 30 mm in places where the open-cast mine slopes are without vegetation. With such accuracy, the UAS can be seen as an inexpensive and operational complement to conventional aerial photogrammetry, as well as a method for monitoring the side slopes of open-cast mines (particularly inaccessible places) and for operational monitoring of landslide movements in open-cast mines. To achieve the largest possible precision of resulting DSM we encourage the utilization of ground control points (targets of size 500 x 500 mm) deployed across the area of interest.
Type:
Stať ve sborníku z mezinár. konf.

Authors:
Ing. Luboš Nouzovský, Ph.D.; Ing. Bc. Karel Kocián, Ph.D.; Ing. Zdeněk Svatý, Ph.D.; doc. Ing. Zuzana Radová, Ph.D.; doc. Ing. Josef Kocourek, Ph.D.
Published:
2018, Young Transportation Engineers Conference 2018, Praha, Fakulta dopravní), ISBN 978-80-01-06464-1
Annotation:
The article introduces interesting fragments of a part of the project focusing on the possibility of affecting the traffic safety by advertising equipment. The solution included, among other things, the localization and the presence classification of advertising equipment along the backbone network of roads in the Czech Republic, statistical evaluation and analysis of traffic accidents or traffic conflicts monitoring, psychological analysis of impact of the presence of advertising equipment, analysis of the number and length and the driver’s gaze using an eye tracking method. In the framework of the assessment of the direct influence on the driver was realized a test drive focused on distraction tests in real operation using the Wiener Fahrprobe structured observation method and the eye tracking technique.
Type:
Stať ve sborníku z mezinár. konf. cizojazyčně

Authors:
Ing. Luboš Nouzovský, Ph.D.; Ing. Michal Frydrýn, Ph.D.; doc. Ing. Tomáš Mičunek, Ph.D.; Ing. Zdeněk Svatý, Ph.D.; Šareš, K.
Published:
2018, Soudní inženýrství, 29 (1), p. 35-42), ISSN 1211-443X
Annotation:
The paper presents preliminary results of crash-tests and focus on verification and evaluation of functionality of the CDR system and its suitability for forensic and expert practice. The CDR (Crash Data Retrieval) is an electronic system that allows reading of recorded data from various vehicular sensors and controlling units via Event Data Recorder (EDR). The correctness and accuracy of obtained accidental data (pre- and post-crash) was assessed. The evaluation based on comparison of measured data with independent measuring systems mounted on the chassis of the vehicle.
Type:
Článek v odborném recenzovaném periodiku česky

Authors:
Ing. Luboš Nouzovský, Ph.D.; Ing. Michal Frydrýn, Ph.D.; doc. Ing. Tomáš Mičunek, Ph.D.; Ing. Zdeněk Svatý, Ph.D.; Šareš, K.
Published:
2018, Sborník příspěvků konference Expert Forensic Science Brno 2018, Brno, Ústav soudního inženýrství), p. 169-179), ISBN 978-80-214-5600-6
Annotation:
The paper presents preliminary results of crash-tests and focus on verification and evaluation of functionality of the CDR system and its suitability for forensic and expert practice. The CDR (Crash Data Retrieval) is an electronic system that allows reading of recorded data from various vehicular sensors and controlling units via Event Data Recorder (EDR). The correctness and accuracy of obtained accidental data (pre- and post-crash) was assessed. The evaluation based on comparison of measured data with independent measuring systems mounted on the chassis of the vehicle.
Type:
Stať ve sborníku z mezinár. konf. česky

Authors:
Ing. Luboš Nouzovský, Ph.D.
Published:
2018, Young Transportation Engineers Conference 2018, Praha, Fakulta dopravní), ISBN 978-80-01-06464-1
Annotation:
One of the basic tasks in assessing and describing the movement of the system rider - bicycle is the choice of a measuring technology and measuring device to capture the shape of a trajectory, especially with regard to practicality and accuracy, but also to budget. Several measuring methods are considered, due to the need to ensure high accuracy of measurements (in centimetres) in the research project, a combination of three approaches - photogrammetry, accelerometric measurement and motion measurement using satellite methods was chosen.
Type:
Stať ve sborníku z mezinár. konf. česky

Authors:
doc. Ing. Josef Kocourek, Ph.D.; Ing. Bc. Karel Kocián, Ph.D.; Koubek, M.; Ing. Luboš Nouzovský, Ph.D.
Published:
2018, Silniční obzor, 79 (4), p. 94-99), ISSN 0322-7154
Annotation:
CTU in Prague, Faculty of Transportation Sciences in cooperation with Brno University of Technology, Faculty of Civil Engineering in 2016 solved the project "Road Inspection according to Act No. 13/1997 Coll., Section 18m", on roads in the TEN-T network and roads, which replace this network but are not included. Since it is a conceptual tool implemented over a three-year period, further inspections will be carried out in 2019. The research team would like to interpret the possibility of modifying the way of selecting the monitored sites on the basis of past survey experience in the article, in order to achieve a world-wide acceptable level of road safety where it is most desirable.
Type:
Článek v odborném recenzovaném periodiku česky

Authors:
Ing. Luboš Nouzovský, Ph.D.; Ing. Martin Jacura, Ph.D.; Ing. Ondřej Doležal; Ing. Michal Drábek, Ph.D.; Ing. Patrik Horažďovský, Ph.D.; doc. Ing. Jakub Kraus, Ph.D.; Ing. Bc. Petr Kumpošt, Ph.D.; Ing. Josef Mík, Ph.D.; Ing. Jiří Růžička, Ph.D.
Published:
2018, ISBN 978-80-01-06464-1
Type:
Sborník z mezinár. konf. cizojazyčně

Authors:
Ing. Zdeněk Svatý, Ph.D.; Ing. Bc. Karel Kocián, Ph.D.; Ing. Luboš Nouzovský, Ph.D.; doc. Ing. Zuzana Radová, Ph.D.; doc. Ing. Josef Kocourek, Ph.D.
Published:
2017
Annotation:
Recommendations for state administration that can be reflected in the draft law (or part of it) formulated from the results of the analyzes performed (foreign and domestic literature and legislation, psychological research, experiments, etc.).
Type:
Výsledky promítnuté do právních předpisů a norem

Authors:
Hála, P.; Sovják, R.; Ing. Michal Frydrýn, Ph.D.; doc. Ing. Tomáš Mičunek, Ph.D.
Published:
2017, Construction and Building Materials, 139, p. 64-80), ISSN 0950-0618
Annotation:
This paper is devoted to the experimental development of a high load bearing energy absorbing system (EAS) made of high performance concrete (HPC). The HPC investigated in this study was a selfconsolidating concrete with fast strength development which did not require heat curing or special mixing techniques. It was also an inherently very dense material which lead to the excellent environmental resistance and resulted in the long term durability. The proposed EAS was subjected to the thorough testing and its functionality was verified under impact and quasi-static loading. Numerical simulations were compared with the experimental data and good agreement was obtained. It was demonstrated that it is possible to develop an energy absorbing system made of high performance concrete with controlled impact force and deceleration. This demonstration together with load bearing capability and long term durability, predetermined the developed EAS for wide range of applications including those where currently manufactured energy absorbers cannot be applied.
DOI:
10.1016/j.conbuildmat.2017.02.048
Type:
Článek v periodiku excerpovaném SCI Expanded

Authors:
Ing. Bc. Karel Kocián, Ph.D.; doc. Ing. Josef Kocourek, Ph.D.; Ing. Luboš Nouzovský, Ph.D.
Published:
2017, Silnice Železnice, 12 (1), p. 119-122), ISSN 1801-822X
Annotation:
The article is focused on the evaluation of accident rate statistics concerning of TEN-T Network and selected first class roads replacing the planned TEN-T Network.
Type:
Článek v odborném recenzovaném periodiku česky

Authors:
Ing. Bc. Karel Kocián, Ph.D.; doc. Ing. Josef Kocourek, Ph.D.; Ing. Luboš Nouzovský, Ph.D.; doc. Ing. Zuzana Radová, Ph.D.; Ing. Zdeněk Svatý, Ph.D.
Published:
2017, 2017 Smart Cities Symposium Prague (SCSP) - IEEE PROCEEDINGS, New York, IEEE Press), ISBN 978-1-5386-3825-5
Annotation:
The paper presents a methodology for determination and evaluation of the influence of advertising equipment on the road traffic safety. Research is based on analysis of advertisement along the primary road network in the Czech Republic and defines individual measures to resolve identified issues. Proposed solutions are based on combination and synthesis of various methodological approaches, including statistical evaluation and analysis of traffic accidents, monitoring of traffic conflicts, psychological analysis of impact of the presence of advertising equipment on the driver in real and simulated scenarios, analysis of the number and length and the point of driver’s gaze utilizing Eye-tracking techniques and assessment of the advertising equipment as a light emitting object.
DOI:
10.1109/SCSP.2017.7973847
Type:
Stať ve sborníku z prestižní konf.

Authors:
Fogl, T.; Kobosil, M.; Ing. Luboš Nouzovský, Ph.D.
Published:
2017, Sborník příspěvků konference Junior Forensic Science Brno 2017, Brno, Ústav soudního inženýrství), p. 38-42), ISBN 978-80-214-5486-6
Annotation:
This paper is dedicated to the laws and regulations, which regulates movement possibilities of personal transporters on public roads in Czech legal system as well as in foreign legal systems and their comparison.
Type:
Stať ve sborníku z mezinár. konf. cizojazyčně

Authors:
Ing. Zdeněk Svatý, Ph.D.
Published:
2017
Annotation:
The study presents research activities of the student together with the proposed topics and aims of the subsequent dissertation thesis. The study is divided into four sections. These sections are logically interconnected and have an aim to set up the necessary knowledge base for the dissertation. The first part deals with various photogrammetric methods, their characteristics and with associated requirements of forensic and expert practice for practical application. The second part discus the current state-of-art of the documentation procedures of the Police of the Czech Republic, especially the photographic documentation, which is crucial for the use of photogrammetric measurements. The third part briefly introduces the photogrammetric foundations, procedures and methods together with the photogrammetric software tools currently used for traffic accident analysis. In particular, methods of digital image correlation are described in detail. The last part is devoted to the clarification of proposed dissertation topics and how should be the identified issues further discussed.
Type:
Kandidátské minimum

Authors:
Ing. Bc. Karel Kocián, Ph.D.; doc. Ing. Josef Kocourek, Ph.D.; Ing. Zdeněk Svatý, Ph.D.; Ing. Luboš Nouzovský, Ph.D.; doc. Ing. Tomáš Mičunek, Ph.D.; doc. Ing. Drahomír Schmidt, Ph.D.; Stojaspalová, Z.
Published:
2017
Annotation:
The aim of the safety inspection is to assess the safety level on roads D4, D7 a I/4, which are superintended by ŘSD ČR Závod Praha.
Type:
Výzkumná zpráva v češtině

Authors:
Ing. Bc. Karel Kocián, Ph.D.; doc. Ing. Josef Kocourek, Ph.D.; Ing. Luboš Nouzovský, Ph.D.; doc. Ing. Zuzana Radová, Ph.D.; Ing. Zdeněk Svatý, Ph.D.
Published:
2017, Silniční obzor, 78 (5), p. 133-137), ISSN 0322-7154
Annotation:
Last year, the Transport Faculty of the Czech Technical University conducted a research project aimed at the advertising devices impact on the road traffic safety. This paper describes the project mentioned focusing at the advertising devices including the dynamic ones located in the direct road closeness and presents the project executors´ recognitions. The outputs of selected risk road sections including traffic accident analysis and traffic collisions observations are in this paper mentioned in details. In the frames of the psycho- logical analysis, which formed an indispensable part of the project, test travels in actual traffic were realized as well as those at a driving simulator.
Type:
Článek v odborném recenzovaném periodiku česky

Authors:
doc. Ing. Josef Kocourek, Ph.D.; Ing. Bc. Karel Kocián, Ph.D.; Koubek, M.
Published:
2017, Sborník příspěvků - konference dopravní infrastruktura 2017, Praha 5, Ing. Jindřich Volf, CSc. - Agentura Viaco)
Annotation:
In 2015, CTU in Prague the Faculty of Transportation Sciences carried out a road safety inspection on the TEN-T network in the Czech Republic and on selected high classes roads replacing the planned TEN-T network. The article focuses on a basic overview of the most frequent deficits, both in terms of frequency and severity of risks. The aim of this contribution is to explain the classification used in the different risk categories that were generated during the safety inspection evaluation and has more appropriate character for the traffic managers compared to the current methodology of road safety inspections.
Type:
Stať ve sborníku z lokální konf. česky

Authors:
doc. Ing. Jindřich Šachl, CSc.; Šachl, J.; Ing. Michal Frydrýn, Ph.D.
Published:
2017, Soudní inženýrství, 28 (4), p. 188-194), ISSN 1211-443X
Annotation:
Ratio of EES values on vehicles after accident is usually put into context of their masses. The EES ratio can be expressed by the conversion of EES values among particular vehicles. This commonly used equation is not valid generally, because it is based on assumptions which are not complied with all types of collisions. But, is this fact well known to all experts? Many of them substitute their „own variables“ into the common equation as it is generally valid, and then, if the EES ratio does not match the “general” equation – it must be (according to their opinion) the fake accident. Unfortunately the conclusion is not usually true.
Type:
Článek v odborném recenzovaném periodiku česky

Authors:
Ing. Luboš Nouzovský, Ph.D.
Published:
2017, Sborník příspěvků konference Junior Forensic Science Brno 2017, Brno, Ústav soudního inženýrství), p. 43-47), ISBN 978-80-214-5486-6
Annotation:
The paper is focused on method of measuring of vehicle’s motion parameters. Parametrs like acceleration, orientation, velocity or position could be used for reconstruction of the trajectory or the whole motion. These days, wide-spread and quiet popular is combination of two different technologies - Global Navigation Satellite System and Inertial Navigation Systems. Both methods have their pros and cons but the combination has synergistic effect, because hide the drawbacks and derives benefit from the technologies.
Type:
Stať ve sborníku z mezinár. konf. cizojazyčně

Authors:
Ing. Luboš Nouzovský, Ph.D.
Published:
2017
Annotation:
Studie je souhrnem současného stavu poznání v oblasti měření a popisu pohybu soustavy cyklista - jízdní kolo. Nastiňuje možné nové přístupy a řadu faktorů, které tuto problematiku ztěžují a které nesmí být přehlédnuty.
Type:
Kandidátské minimum