Lidé na fakultě
Ing. Bc. Pavel Edvard Vančura, Ph.D., MBA

2022, MME2022 : Proceedings of the 40th International Conference on Mathematical Methods in Economics, Jihlava, Vysoká škola polytechnická Jihlava), p. 366-373), ISBN 978-80-88064-62-6

The basic aspect of public transport in terms of its use must be its attractiveness for passengers. If it is not possible to provide a direct connection for each passenger, discomfort must be minimized for passengers who will have to change during the transport process. Their discomfort can be reduced by shortening the time they must wait for the consequent connection. Reducing the waiting time during transfers can be achieved mainly by a higher level of network coordination of connections. The given problem can be solved as an optimization task. The motivation for the article is the specific nature of the timing of connections in the Prague public transport system, where coordination between subway and bus lines is required on weekends. For the bus lines, the so-called periodically alternating headway is applied on weekends. The connections are run at 7- and 8-minute headways, and this sequence is repeated regularly throughout the weekend. The optimization criterion is the total time loss of transferring passengers in all transfer nodes. The value of the total time loss is minimized. The computational experiment was realized in the Xpress-IVE optimization software.

Stať ve sborníku z prestižní konf.

2022, QUANTITATIVE METHODS IN ECONOMICS (Multiple Criteria Decision Making XXI), Bratislava-Nové Mesto, Letra Edu), p. 188-195), ISBN 978-80-89962-93-8

The basic aspect of public transport in terms of its use must be its attractiveness to passengers. Attractiveness is characterized by many factors. One of them is, for example, the offer of a direct connection. However, it is not always possible to provide a direct connection. In this case, passenger transfers cannot be avoided. During transfers, it is important that passengers do not wait unnecessarily for consecutive connections. The presented article deals with the issue of network coordination of tram connections in the Ostrava public transport system. The optimization criterion is the total time loss of transferring passengers in all nodes in which there is a transfer between tram lines.

Stať ve sborníku z prestižní konf.

2021, MME2021 : Proceedings of the 39th International Conference on Mathematical Methods in Economics, Praha, Czech University of Life Sciences Prague), p. 487-492), ISBN 978-80-213-3126-6

Time coordination of connections in transfer nodes is one of the basic pillars of attractive public transport. Coordination of the connections must be implemented in such a way as to ensure not only the continuity between the required connections, but also that the operating conditions of the public transport provider are not adversely affected. Coordination is also not usually limited to an isolated transport node, because there are more transfer nodes in the network of public transport lines. The presented article contains a mathematical model mixing node and section time coordination of connections in public transport system at the same time. Factors that affect the coordination process are discussed and some problems that occur when solving tasks of time coordination using mathematical models are pointed out.

Stať ve sborníku z prestižní konf.

2020, Proccedings of 38th Int. Conf. MME 2020, Brno, Provozně ekonomická fakulta), p. 585-591), ISBN 978-80-7509-734-7

Tram transport infrastructure and its subsequent operation is a very costly matter for each transport operator. It is therefore purposeful for the infrastructure to be built only to the extent which is necessary. The article deals with the optimisation of the necessary number of shunting tracks under predefined volume of tram transport which is given by the number of tram lines and a frequency of their connections. This is a problem that is specific to rail transport, when changing the order of individual vehicles is organizationally complicated and is feasible only with appropriate construction of the rail yard (so called turning loops), in some cases it is not possible at all. One of the ways how to reduce the number of necessary shunting tracks at tram turning loops is to adjust the arrival and departure times of tram vehicles serving the individual lines - time coordination. Mathematical programming will be used to deal with the problem.

Stať ve sborníku z prestižní konf.