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

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.

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Abstract

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.

Impact and interest:

12 citations in Scopus
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8 citations in Web of Science®

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ID Code: 37950
Item Type: Journal Article
Additional URLs:
Keywords: Rapid Transit Railways, Train Control, Dynamic Programming, Event-based Model
DOI: 10.1049/iet-epa:20060132
ISSN: 1751-8660
Subjects: Australian and New Zealand Standard Research Classification > MATHEMATICAL SCIENCES (010000) > APPLIED MATHEMATICS (010200) > Operations Research (010206)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Transport Engineering (090507)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > Schools > School of Engineering Systems
Copyright Owner: Copyright 2007 The Institution of Engineering and Technology
Deposited On: 14 Oct 2010 08:47
Last Modified: 01 Mar 2012 14:08

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