Safety Research on Rail Transit Safety Hosts by Integrating Markov Method and GO Method
Journal Title: Urban Mass Transit - Year 2024, Vol 27, Issue 12
Abstract
[Objective] Rail transit safety hosts are the core of the train operation control system, and it is necessary to conduct safety research on the rail transit safety hosts. [Method] The system architectures of the 2-out-of-3 safety host and the double 2-vote-2 safety host are introduced. A quantitative calculation method for the safety hosts that combines Markov method and GO method is proposed and verified through actual example. [Result & Conclusion] Within the same working period, the safety of the power module decreases the fastest. So in practical applications, special attention should be paid to the safety of the power module in the safety hosts. In the initial working period, the security performance of the double 2-vote-2 safety host is higher than that of the 2-out-of-3 safety host, but the difference in security performance between the two safety hosts is not significant; with the increase of working time, the security performance of both safety hosts decreases. Adoption of the proposed Markov-GO joint model can achieve safety quantitative analysis of the safety hosts.
Authors and Affiliations
Hongliang PAN, Chenglong YU, Di LI, Hao WANG, Minda SUN
Evacuation Solution for Fully Automatic Operation System of Urban Rail Transit
Objective In order to ensure that FAO (fully automatic operation system) can effectively guarantee the safe evacuation of passengers in case of emergency and quickly resume operations after evacuation completion, it is p...
Analysis on the Performance of New Mountain Gear Rail Train Brake
Objective The maximum slope of the mountain gear rail line can reach 250‰. As the sliding force generated by the component of the gravity is much greater than the maximum friction force between wheel and rail, relying so...
Personnel Intrusion into Construction Area Warning System Based on RFID and Binocular Vision in Vehicle Base
Objective Construction management at urban rail transit vehicle bases typically relies on work permission and work closure method to control construction safety. However, there is a lack of real-time protective technolog...
Research on Intelligent Control Platform in Urban Rail Transit FAO Scenario
[Objective] The existing operational mechanisms primarily rely on operational management systems that drive personnel to perform operational tasks. Operational staff communicate information through phones or intercom dev...
Study on the Relationship between Tram Stop Location Layout and Intersection Delay Time
[Objective] In order to improve the operating service efficiency and reliability of trams, it is necessary to study the relationship between the layout of tram stop location and the intersection delay time. [Method]...