Dwell-time and run-time control for DC mass rapid transit railways


Autoria(s): Wong, K. K.; Ho, T. K.
Data(s)

2007

Resumo

Dwell times at stations and inter-station run times are the two major operational parameters to maintain train schedule in railway service. Current practices on dwell-time and run-time control are that they are only optimal with respect to certain nominal traffic conditions, but not necessarily the current service demand. The advantages of dwell-time and run-time control on trains are therefore not fully considered. The application of a dynamic programming approach, with the aid of an event-based model, to devise an optimal set of dwell times and run times for trains under given operational constraints over a regional level is presented. Since train operation is interactive and of multi-attributes, dwell-time and run-time coordination among trains is a multi-dimensional problem. The computational demand on devising trains' instructions, a prime concern in real-time applications, is excessively high. To properly reduce the computational demand in the provision of appropriate dwell times and run times for trains, a DC railway line is divided into a number of regions and each region is controlled by a dwell- time and run-time controller. The performance and feasibility of the controller in formulating the dwell-time and run-time solutions for real-time applications are demonstrated through simulations.

Formato

application/pdf

Identificador

http://eprints.qut.edu.au/37950/

Publicador

The Institution of Engineering and Technology

Relação

http://eprints.qut.edu.au/37950/5/37950.pdf

DOI:10.1049/iet-epa:20060132

Wong, K. K. & Ho, T. K. (2007) Dwell-time and run-time control for DC mass rapid transit railways. IET Electric Power Applications, 1(6), pp. 956-966.

Direitos

Copyright 2007 The Institution of Engineering and Technology

Fonte

Faculty of Built Environment and Engineering; School of Engineering Systems

Palavras-Chave #010206 Operations Research #090507 Transport Engineering #Rapid Transit Railways #Train Control #Dynamic Programming #Event-based Model
Tipo

Journal Article