Please use this identifier to cite or link to this item: http://hdl.handle.net/10609/146945
Title: Resolution of coupling order and station level constraints in train unit scheduling
Author: Lei, Li  
Kwan, Raymond  
Lin, Zhiyuan  
Copado Mendez, Pedro Jesus  
Others: Universitat Oberta de Catalunya (UOC)
University of Leeds
Keywords: train unit scheduling
coupling order
station constraints
resolution
Issue Date: 11-May-2022
Publisher: Public Transport
Citation: Lei, L., Kwan, R.S.K., Lin, Z. et al. Resolution of coupling order and station level constraints in train unit scheduling. Public Transp 14, 27–61 (2022). https://doi.org/10.1007/s12469-022-00295-3
Published in: Public Transport, 2022, 14(27–61)
Also see: https://doi.org/10.1007/s12469-022-00295-3
Abstract: Train unit scheduling assigns vehicles to cover all trips of a fixed timetable satisfying constraints such as seat demands. With a two-phase approach, this problem is first solved in Phase I as an integer multi-commodity flow problem. Train stations are simplified as single points and coupling orders of train units are left undetermined. In this paper, platforms and their layouts at the stations are restored to complete a fully operable schedule, defined as Phase II. An adaptive approach expanding Phase I to Phase II is proposed. The logistics of (de-)coupling operations, coupling orders and re-platforming are determined in detail to prevent unit blockage where possible, particularly focusing on developing a schedule with conflict-free coupling orders. If unresolvable station level conflicts still exist, the process loops back to Phase I with addressed Phase II constraints to avoid identified conflicts. Thus, the schedule is iteratively improved until it is fully operable.
Language: English
URI: http://hdl.handle.net/10609/146945
ISSN: 2590-1982MIAR
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