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Characteristics of event recorders in automatic train control systems

Jacyna M., Szczepański E., Izdebski M., Jasiński S., Maciejewski M.

Archives of Transport

2018

Vol. 46, iss. 2

61--70

The development of railway transport in the current times is very noticeable, it is connected with the growing needs of movement as well as the development of information engineering. The increase in the demand for transport requires the implementation of solutions that increase the efficiency of the transport system. Both long-distance, agglomeration and metro railways can use different systems due to their specificity. Nevertheless, there is a noticeable trend in the development of systems supporting or even replacing the driver by the automation of selected activities. Such systems allow to reduce trains headway and thus increase the capacity of the line. CBTC class systems (Communications-based train control) belong to automatic train systems and are based on wireless transmission. The main purpose of using such systems is to increase the frequency of running trains while maintaining the level of safety. Computers that are on the system equipment record, process and analyse very large amounts of data. An essential element of such systems are recording units. The parameter recorders can be divided into technical and legal ones. However, for CBTC class systems, there is no obligation or requirement to use legal recorders as it is in the case of ETCS. However, it is necessary to use event recorders, and these are subject to the requirements set out in the PN-EN 62625-1: 2014 standard. The recorders are a very important component of safety systems, which is why they were analysed in this article. Both the driver, the vehicle and the infrastructure should be subject of continuous monitoring. The occurrence of an adverse event (not necessarily leading to an incident or accident) should be analysed and used to improve safety procedures. Currently, automatic systems are still developing and we are not able to accurately assess what the causes and effects of certain events may be, which is why data collection and analysis is particularly important. The article presents the general specification of the CBTC system. The parameters and properties of driving recorders should be presented. This article is cofinanced by the European Union POIR.01.01.01-00-0276/17

Analiza porównawcza systemu SOP z innymi systemami automatycznego prowadzenia pociągu na liniach metra

Barański S., Bergiel K., Karbowiak H.

Prace Naukowe Politechniki Warszawskiej. Transport

2007

z. 62

15-23

W referacie sformułowano warunki i wymagania dotyczące ruchu pociągów na liniach metra, które wpływają na koncepcję działania systemu automatycznego prowadzenia pociągu ATC. Określono zakres funkcji ATP i ATO dla tych systemów, a nastepnie przedstawiono podstawową klasyfikację systemów z punktu widzenia realizacji funkcji ATO, zasady wyznaczania predkości bezpiecznej oraz metody transmisji informacji z toru do pojazdu. Jako charakterystyczne przykłady przedstawiono rozwiązania rosyjskie systemów ATC oraz firm Matra, Siemens i Alcatel. Na tym tle scharakteryzowano system SOP wymieniając jego podstawowe cechy i możliwości rozwojowe.

The paper begins from requirements for vehicle traffic in subway lines, which have an influence upon the conception of ATP and ATO function of automatic train control system. Taking in consideration: realization ATO function, rules of safe speed value calculation and transmission methods, classifications of various solutions of systems is presented. From this point of view some ATC systems are shortly described. After, features and development possibilities of SOP system applied in Warsaw and Prague subway lines is characterized.