scholarly journals Enhancing capacity on ETCS Level 2 lines in Austria

2021 ◽  
Author(s):  
Andreas Schöbel ◽  
Olga Permiakova
Keyword(s):  
Control System ◽  
High Speed ◽  
Simulation Software ◽  
Train Control ◽  
Train Control System ◽  
Potential Increase ◽  
Level 2

The European Train Control System (ETCS) is also applied in the network of Austrian Railways (ÖBB). In ETCS Level 2 it is possible to skip conventional trackside signals. This opportunity is very useful on recently built new high speed lines. Level 2 allows to increase capacity by adding additional blocks even on existing lines. This paper presents the potential increase of capacity on the high speed line between Vienna and St. Pölten which has been opened in the year 2012 and is operated by ETCS Level 2. Trackside signals are only used as a fall back option. Simulation software OPENTRACK has been applied to calculate headways for different block layouts. Results are presented in this paper and look promising for an increase of capacity on railway lines.

Operation-oriented reliability and availability evaluation for onboard high-speed train control system with dynamic Bayesian network

2018 ◽  
Vol 233 (3) ◽  
pp. 455-469 ◽  
Author(s):  
Lei Jiang ◽  
Yiliu Liu ◽  
Xiaomin Wang ◽  
Mary Ann Lundteigen
Keyword(s):  
Control System ◽  
Bayesian Network ◽  
High Speed ◽  
Dynamic Bayesian Network ◽  
Dynamic Bayesian Networks ◽  
High Speed Train ◽  
Train Control ◽  
Train Control System ◽  
Onboard System ◽  
Reliability And Availability

The reliability and availability of the onboard high-speed train control system are important to guarantee operational efficiency and railway safety. Failures occurring in the onboard system may result in serious accidents. In the analysis of the effects of failure, it is significant to consider the operation of an onboard system. This article presents a systemic approach to evaluate the reliability and availability for the onboard system based on dynamic Bayesian network, with taking into account dynamic failure behaviors, imperfect coverage factors, and temporal effects in the operational phase. The case studies are presented and compared for onboard systems with different redundant strategies, that is, the triple modular redundancy, hot spare double dual, and cold spare double dual. Dynamic fault trees of the three kinds of onboard system are constructed and mapped into dynamic Bayesian networks. The forward and backward inferences are conducted not only to evaluate the reliability and availability but also to recognize the vulnerabilities of the onboard systems. A sensitivity analysis is carried out for evaluating the effects of failure rates subject to uncertainties. To improve the reliability and availability, the recovery mechanism should be paid more attention. Finally, the proposed approach is validated with the field data from one railway bureau in China and some industrial impacts are provided.

scholarly journals Expanding Plan Study of KRTCS-2(Korean Radio Train Control System for Conventional & High Speed Railway)

2017 ◽  
Vol 66 (3) ◽  
pp. 533-539
Author(s):  
Kang-Gyoo Lee ◽  
Jong-gwoan Choi ◽  
Dong-Il Sung ◽  
Hak-Sun Yun ◽  
Jong-Won Park ◽  
...  
Keyword(s):  
Control System ◽  
High Speed ◽  
High Speed Railway ◽  
Train Control ◽  
Train Control System ◽  
Plan Study

Analisis Kinerja GSM-R Pada Kereta Cepat Indonesia

2020 ◽  
Vol 4 (2) ◽  
pp. 93-100
Author(s):  
Natriya Faisal
Keyword(s):  
New York ◽  
Control System ◽  
High Speed ◽  
Radio Waves ◽  
High Speed Train ◽  
New York University ◽  
Natural Conditions ◽  
Train Control ◽  
Train Control System ◽  
Railway System

The High-Speed Train of Indonesian will be implemented in 2022. The communication system used on the fast train is planned to use GSM-R in the future. GSM-R technology is expected to be applied to railways in Indonesia as well as in Europe. The railway system in Germany has applied GSM-R on the Berlin to Halle / Leipzig line using the first European Train Control System (ETCS) in Europe [2]. Radio waves used by GSM-R are at a frequency of 876 to 880 MHz for the uplink side and 921 to 925 MHz on the downlink side. This journal analyzes the GSM-R design that will be applied to Indonesian fast trains using the New York University Simulation (NYUSIM) method. This study evaluates the performance of GSM-R with intervention with natural conditions, such as temperature, humidity, air pressure, power and so on, resulting in a better GSM-R performance in terms of resistance to interference tested.

Research on Formal Modeling Based on CPN for Movement Authority of High-Speed Railway CTCS-3

2012 ◽  
Vol 220-223 ◽  
pp. 2783-2787
Author(s):  
Shu Xu Zhao ◽  
Xiao Ming Wang ◽  
Ai Ling Zhang
Keyword(s):  
Control System ◽  
High Speed ◽  
Formal Model ◽  
Colored Petri Nets ◽  
Formal Modeling ◽  
High Speed Railway ◽  
Train Control ◽  
Transmission Process ◽  
Train Control System ◽  
Information Change

Train Movement Authority(MA) concerns train movement safety. This paper proposed a formal model for Chinese Train Control System-3(CTCS-3) based on train MA. Paper analyzed the rounded CTCS-3, formed MA computation models for various application functions, and finished MA hierarchical and functional computation models based on Colored Petri Nets(CPN). The results of experiment demonstrates that the model proposed in this paper is effective, it can reflect the whole information change and transmission process of CTCS-3 accurately, and can help to design and develop MA of CTCS-3.

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