Development of the Train Traffic Regulation Method for “Rail Baltica” Line Based on the Implementation of the European Train Traffic Control Systems

2017 ◽  
Author(s):  
Larisa Valentinovič ◽  
Henrikas Sivilevičius
Keyword(s):  
Control Systems ◽  
Traffic Safety ◽  
Traffic Control ◽  
Positive Impact ◽  
Primary Objective ◽  
Regulation System ◽  
Railway Network ◽  
Traffic Lights ◽  
Railway Traffic ◽  
Traffic Regulation

This article focuses on analyzing the systems and methods used for the interval regulation of train movement on “Rail Baltica” line in “Lithuanian Railways”. The method discussed in the article can be viewed as a combination of several management automation solutions and it is based on the implementation of the European Railway Traffic Management System (ERTMS). As it is known, the ERTMS provides an interoperable European railway network. The primary objective is to improve the quality of train traffic and to make railway transport safer and more comfortable. In order to ensure new traffic prevision for Lithuanian Railways, new interval regulation methods and traction calculations must be used. This developed method is more useful than the previous methods as it allows to shape an efficiently automated and optimized scheduling process as well as to improve line capacity and efficiency. This paper proposes the development of a moving block train control system. The calculations were made using the intervals between trains. The interval and block-section borders are not fixed by traffic signs or traffic-lights. Instead, they move after the train in the front, creating a flexible interval regulation system. The results showed that the implementation of the method had a positive impact on the operators’ performance and allowed to reduce energy consumption and to increase the speeds of train movement. The paper also presents a statistical figure portraying railway accidents and railway operation accident reports before and after the implementation of the ERTMS. The results of the analysis showed that the implementation of the European Train Traffic control systems and the interval regulation of train movement method will provide high throughput and carrying capacity, traffic safety and also increase the productivity of operation procedures.

Digital standard interfaces in railway traffic control systems

2020 ◽  
Vol 131 ◽  
pp. 17-29
Author(s):  
Paweł Wontorski ◽  
Magdalena Dzierżak
Keyword(s):  
Research And Development ◽  
Control Systems ◽  
Traffic Control ◽  
Essential Feature ◽  
Background Information ◽  
Coherent System ◽  
Railway Network ◽  
Railway Traffic ◽  
Functional Aspects ◽  
Railway Infrastructure

The article presents the issue of digital standard interfaces of railway traffic control systems. The digitization and standardization of interfaces are digital rail elements, an essential feature of integrating various devices, facilities, and processes in one coherent system. The authors described the problems of connecting computer systems, starting from the interface's definition, including technical and functional aspects. Examples of interface types selected problems resulting from connecting incompatible devices and attempts to solve them are presented. It then provides background information on the project to develop a digital interface standard for selected rail traffic control systems. The project described in this article, under the name of "Standardization of selected interfaces of railway traffic control equipment and systems" POIR.04.01.01-00-0005/17, has been created as part of the BRIK (Research and Development in Railway Infrastructure) program and has been cofinanced both by the NCBiR (The National Centre for Research and Development), as well as the PKP Polskie Linie Kolejowe S.A. (PKP PLK - Polish State Railways). The project's goal is to develop, through research, specifications, and requirements for interfaces used in railway traffic control systems, which will become a standard enabling linking of systems from different manufacturers. The project results will be dedicated to using on the railway network managed by PKP PLK (and potentially also by other infrastructure managers) and documentation containing descriptions of standards, guidelines for the application and design of these interfaces.

scholarly journals Traffic Lights on Consecutive Intersections and Pedestrian Crossings Along Linear Settlements Located on National Roads

2012 ◽  
Vol 1 (1) ◽  
pp. 1-9
Author(s):  
Alina Burlacu ◽  
Mihai Dicu ◽  
Valentin Anton
Keyword(s):  
Traffic Safety ◽  
Traffic Control ◽  
Performance Indicators ◽  
Central Area ◽  
Traffic Data ◽  
Traffic Lights ◽  
Micro Simulation ◽  
Pedestrian Traffic ◽  
National Road ◽  
Traffic Measurements

Abstract In Romania, with time, settlements located along the main roads have developed and transformed into linear towns, with significant local and connection traffic, important administrative, economic, commercial and touristic activities concentrated in the central area, as well as pedestrian traffic of over 200 pedestrians per hour in the main pedestrian crossings on the route. The object of the present study is made by a series of junctions situated on National Road 1 in Busteni town, on a dangerous road sector. For this study, traffic measurements, simulations and suggestions for improving the existing situation were made. Based on the simulated traffic flows, there were performed capacity analysis with PTV Vissim and Traficware Synchro softwares, and were developed appropriate planning solutions for the intersections, resulting in tables with extracted performance indicators based on micro simulation of the traffic values. Also planning solutions for horizontal design and proposals for traffic lights were made for junctions that can not operate under priority traffic on one direction or which are presenting traffic safety risk. Based on the traffic data, it was taken in consideration the necessity to make planning proposals and to develop design solutions immediately applicable, with minimum intervention. Solutions will refer to the geometric planning of the intersections, but with new plans and timings for traffic lights, including proposals for new equipment; regulating the traffic flow: development/ refurbishment of intersections and pedestrian crossings; optimization of routing programs in order to achieve a higher level of service and more efficient traffic control indicators; segregation of pedestrian movements by vehicles traffic, implementation of physical devices to lock / channel the traffic.

Functional structure of the subway train traffic control system complex

2021 ◽  
Vol 7 (3) ◽  
pp. 343-361
Author(s):  
E. O. Averchenkov ◽  
◽  
L. A. Baranov ◽  
M. A. Shevchenko ◽  
◽  
...  
Keyword(s):  
Energy Consumption ◽  
Remote Control ◽  
Control Systems ◽  
Traffic Safety ◽  
Traffic Control ◽  
Minimum Energy ◽  
Functional Structure ◽  
Normal Operation ◽  
Rolling Stock ◽  
Emergency Situations

The main architectural aspects of metro train traffic control systems are presented. The structure of train traffic control processes is presented with the example of the State Unitary Enterprise “Moscow Metro” and the main tasks that need to be solved to achieve high levels of automation of train traffic control in subways are described. A functional structure of a complex of metro train traffic control systems is presented, covering the levels of organization and planning of train traffic, operational traffic control and direct executive systems. The relationship between objects of automation and remote control of train movement, devices of the operational level and systems of organization and planning of movement are shown. The necessity of re-equipping the metro with means of ensuring transport safety and linking them with traffic control systems such as: means of informing passengers, providing the possibility of promptly informing passengers both during normal operation of the transport system and in case of emergency situations, means of communication “passenger – control center (situation center)” is shown. The latter ensures interaction between passengers and operational personnel of the subway, and if necessary, video surveillance equipment that provides enhanced remote control of the current situation in the interior of rolling stock cars and on platforms. The use of complex systems for controlling the movement of trains in subways increases the efficiency of their use by increasing the throughput and carrying capacity, accurate fulfillment of the traffic schedule and the possibility of its rapid recovery in case of failures. At the same time, traffic safety increases by reducing the likelihood of dangerous train convergence , and also the energy consumption for train traction is reduced due to the choice of energy-optimal train control modes and the optimal distribution of travel time along the line by the criterion of minimum energy consumption for the duration of travel along the tracks

Probabilistic method for railway traffic control systems diagnosis

2019 ◽  
Vol 124 ◽  
pp. 133-140
Author(s):  
Waldemar Nowakowski ◽  
Tomasz Ciszewski ◽  
Zbigniew Łukasik
Keyword(s):  
Control Systems ◽  
Information And Communication Technologies ◽  
Traffic Control ◽  
Diagnostic Method ◽  
Negative Impact ◽  
Probabilistic Method ◽  
Railway Traffic ◽  
Information And Communication ◽  
High Level ◽  
Contemporary Development

Railway traffic control systems have a key role in ensuring the smooth operation of railway traffic. Therefore, the basic requirement, in addition to the implementation of necessary system functions, is continuous striving for ensuring the high level of reliability. Contemporary development of railway traffic control systems is associated with the application of modern information and communication technologies, which makes it possible to extend the functionality of these systems by the logging events and selfdiagnostics. However, there are no standards in this area, which considerably complicates the unification of scope and types of acquired diagnostic data as well as their analysis. This, of course, has a negative impact on the maintenance of the systems technical reliability. The authors of the paper have noticed this important problem and have proposed a new diagnostic method for railway traffic control systems, which is based on a probabilistic inference. They also verified the developed diagnostic method by testing it on the level crossing protection system. The obtained results have proved the correctness of the adopted railway traffic control systems diagnosing concept.

scholarly journals Interface and connection model in the railway traffic control system

2021 ◽  
Vol 58 (2) ◽  
pp. 137-147
Author(s):  
Juliusz Karolak
Keyword(s):  
Traffic Control ◽  
Specific Area ◽  
Electrical Current ◽  
Base Layer ◽  
Physical Parameters ◽  
Railway Network ◽  
Electrical Signals ◽  
Railway Traffic ◽  
Operating Rules ◽  
Control Circuits

The article presents a model of connection of ETCS application and classical base layer equipment. The model distinguishes three layers: physical, logic and data, which require different modelling techniques and at the same time must be consistent. The model will form the basis for the digital mapping in the Digital Twin of the ETCS application. Layer division is a natural way to represent the structure of a device and its operating rules. It allows a detailed and structured representation of the interfaces of a connection and then an analysis of the connection both with respect to the layer of interest and from the point of view of the interaction between features in the different layers. The S-interface of the LEU encoder of the ETCS is described, taking into account different solutions encountered in practice. The conditions of the connection between the LEU encoder and the environment form a description of one of the two boundaries between the ETCS application, i.e. the implemented ERTMS/ETCS on a specific area of the railway network, and the environment. A general connection model and definitions of a connection and an interface are presented. As an example, the electrical connection with signals transmitted through galvanic connections has been assumed to be typical for LEU encoder and track-side signalling control circuits found in base layer equipment. The physical layer is described in terms of physical parameters and their values. The parameters are divided into electrical (current, voltage and frequency) and mechanical ones (number of leads, conductor thickness, etc.). The values of the electrical parameters are expressed in terms of a uncountable set with defined limits. The logic layer was described in a vector-matrix form. Logic signals are assigned to electrical signals with specific physical parameters. The data layer contains information about the assignment of specific telegrams to specific electrical signals.

scholarly journals THE “GREEN WAVE” MODE PRODUCTION ON THE TWO‐LANE HIGHWAYS DURING THE CONSTRUCTION WORKS TIME PERIOD

Transport ◽  
2007 ◽  
Vol 22 (4) ◽  
pp. 263-268 ◽  
Author(s):  
Аlexander Berezhnoy ◽  
Аlexander Grakovsky ◽  
Аlexey Nesterov
Keyword(s):  
Traffic Control ◽  
Road Construction ◽  
Wave Mode ◽  
Traffic Lights ◽  
Traffic Regulation ◽  
Time Period ◽  
The Given ◽  
Mode Production ◽  
Practical Recommendations ◽  
Construction Works

In the paper, the problem of a bi‐directional “green wave” mode production is considered for the vehicle flows motion on two‐lane highways during the conducting of construction works. The solution of the given task allows to develop practical recommendations for the sphere of the construction works management on two‐lane roads and country highways, and also to raise traffic control efficiency in the pointed conditions. The comparative analysis of possible traffic regulation modes for the set scheme of road construction works sites and the estimation of their efficiency is performed, the test of a hypothesis regarding the possibility of a bi‐directional “green wave” mode realization is carried out, and calculation of traffic lights signal control phases time is performed.

scholarly journals Using Automated Planning for Traffic Signals Control

2016 ◽  
Vol 28 (4) ◽  
pp. 383-391 ◽  
Author(s):  
Matija Gulić ◽  
Ricardo Olivares ◽  
Daniel Borrajo
Keyword(s):  
Control Systems ◽  
Traffic Control ◽  
Traffic Congestion ◽  
Automated Planning ◽  
Traffic Signals ◽  
Real World Data ◽  
Planning Techniques ◽  
Traffic Lights ◽  
Traffic State ◽  
Control Actions

Solving traffic congestions represents a high priority issue in many big cities. Traditional traffic control systems are mainly based on pre-programmed, reactive and local techniques. This paper presents an autonomic system that uses automated planning techniques instead. These techniques are easily configurable and modified, and can reason about the future implications of actions that change the default traffic lights behaviour. The proposed implemented system includes some autonomic properties, since it monitors the current traffic state, detects if the system is degrading its performance, sets up new sets of goals to be achieved by the planner, triggers the planner that generates plans with control actions, and executes the selected courses of actions. The obtained results in several artificial and real world data-based simulation scenarios show that the proposed system can efficiently solve traffic congestion.

Sign in / Sign up

Export Citation Format

Share Document