An Improved Discrete-Time Model for Heterogeneous High-Speed Train Traffic Flow

This paper aims to present a simulation model for heterogeneous high-speed train traffic flow based on an improved discrete-time model（IDTM）.In the proposed simulation model,four train control strategies,including departing strategy,traveling strategy,braking strategy,overtaking strategy,are well de...

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Published inCommunications in theoretical physics Vol. 65; no. 3; pp. 381 - 392
Main Author 许琰 贾斌 李明华 李新刚
Format Journal Article
LanguageEnglish
Published 01.03.2016
Subjects
Computer simulation
High speed trains
Mathematical models
Movements
Strategy
Traffic flow
Traffic models
Trains
交通流
仿真模型
列车运行
发车时间间隔
异构
控制策略
离散时间模型
高速列车
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ISSN0253-6102
1572-9494
DOI10.1088/0253-6102/65/3/381

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Summary:This paper aims to present a simulation model for heterogeneous high-speed train traffic flow based on an improved discrete-time model（IDTM）.In the proposed simulation model,four train control strategies,including departing strategy,traveling strategy,braking strategy,overtaking strategy,are well defined to optimize train movements.Based on the proposed simulation model,some characteristics of train traffic flow are investigated.Numerical results indicate that the departure time intervals,the station dwell time,the section length,and the ratio of fast trains have different influence on traffic capacity and train average velocity.The results can provide some theoretical support for the strategy making of railway departments.
Bibliography:Yan Xu,Bin Jia,Ming-Hua Li,Xin-Gang Li（1.State Key Laboratory of Rail Traffic Control and Safety, Beijing Jiaotong University, Beijing 100044, China; 2.School of Traffic and Transportation, Beijing Jiaotong University, Beijing 100044, China）
This paper aims to present a simulation model for heterogeneous high-speed train traffic flow based on an improved discrete-time model（IDTM）.In the proposed simulation model,four train control strategies,including departing strategy,traveling strategy,braking strategy,overtaking strategy,are well defined to optimize train movements.Based on the proposed simulation model,some characteristics of train traffic flow are investigated.Numerical results indicate that the departure time intervals,the station dwell time,the section length,and the ratio of fast trains have different influence on traffic capacity and train average velocity.The results can provide some theoretical support for the strategy making of railway departments.
11-2592/O3
discrete-time model; heterogeneous train traffic flow; control strategy; simulation
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SourceType-Scholarly Journals-1
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content type line 23
ISSN:0253-6102
1572-9494
DOI:10.1088/0253-6102/65/3/381