Optimisation models for expanding a railway's theoretical capacity

Burdett, Robert L. (2016) Optimisation models for expanding a railway's theoretical capacity. European Journal of Operational Research, 251(3), pp. 783-797.

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Abstract

Changing the topology of a railway network can greatly affect its capacity. Railway networks however can be altered in a multitude of different ways. As each way has significant immediate and long term financial ramifications, it is a difficult task to decide how and where to expand the network. In response some railway capacity expansion models (RCEM) have been developed to help capacity planning activities, and to remove physical bottlenecks in the current railway system. The exact purpose of these models is to decide given a fixed budget, where track duplications and track sub divisions should be made, in order to increase theoretical capacity most. These models are high level and strategic, and this is why increases to the theoretical capacity is concentrated upon. The optimization models have been applied to a case study to demonstrate their application and their worth. The case study evidently shows how automated approaches of this nature could be a formidable alternative to current manual planning techniques and simulation. If the exact effect of track duplications and sub-divisions can be sufficiently approximated, this approach will be very applicable.

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ID Code: 91351
Item Type: Journal Article
Refereed: Yes
Additional URLs:
Keywords: Railways, Railway Capacity, Capacity Expansion, Theoretical Capacity
DOI: 10.1016/j.ejor.2015.12.033
ISSN: 0377-2217
Subjects: Australian and New Zealand Standard Research Classification > MATHEMATICAL SCIENCES (010000) > APPLIED MATHEMATICS (010200) > Operations Research (010206)
Divisions: Current > Schools > School of Mathematical Sciences
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2016 Elsevier
Deposited On: 17 Dec 2015 05:36
Last Modified: 10 Jun 2016 07:12

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