A Discrete-Space Train Movement Model for a High-Speed Train under Temporary Speed Restriction

Sihui Long,Yihui Wang,Xuan Li,Jianrui Miao,Lingyun Meng

doi:10.1155/2020/5386406

Sihui Long, Yihui Wang + Show 3 more

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https://doi.org/10.1155/2020/5386406

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Abstract

This paper constructs a discrete-space train movement model to evaluate the impact of a temporary speed restriction (TSR) for a high-speed railway train. The established model can demonstrate train movement under different TSR conditions. The proposed model can reveal whether a train is affected by the block section influenced by the TSR within a time duration. Moreover, the model can output detailed train trajectories and the minimal train running time between two adjacent stations to analyse the impact of the TSR. Based on the experimental results, we carry out a comprehensive analysis of the impact of several factors on the running time and train trajectories, including the length of the affected area (i.e., number of affected block sections), the location of the TSR, the limited speed value, and the stopping patterns of the train at two adjacent stations. The experiments show that the proposed discrete-space train movement model can be used to analyse the impact of the TSR on a high-speed railway train under various considered TSR conditions.

Highlights

A speed reduction caused by a temporary speed restriction (TSR) will cause a longer running time in the affected area and further affect train punctuality
If a TSR occurs in real operations, the train dispatchers are responsible for issuing the TSR command to train drivers and making decisions regarding the rescheduling of the timetable. e arrival and departure times are decided based on a known running time between two adjacent stations
The proposed model is used to determine whether a train will be affected by the block section influenced by a TSR within a time duration. e model can calculate the train trajectories in detail and the train running time between two adjacent stations under different TSR conditions. ird, we conduct a comprehensive analysis of the impact of several factors of the TSR, including the number of affected block sections, the location of the TSR, the limited speed value, and the stopping patterns of a train at two adjacent stations

Summary

Introduction

A speed reduction caused by a TSR will cause a longer running time in the affected area and further affect train punctuality. The proposed model is used to determine whether a train will be affected by the block section influenced by a TSR within a time duration. Ird, we conduct a comprehensive analysis of the impact of several factors of the TSR, including the number of affected block sections, the location of the TSR, the limited speed value, and the stopping patterns of a train at two adjacent stations.

Results

Conclusion