A Heuristic Algorithm For The Circulation Plan Of
Railway Electrical Motor Units
Author(s)
J. Miao, Y. Yu & Y. Wang
Abstract
The rolling stock rostering problem with maintenance constraints is NP-hard. In
this paper, a two-stage approach is proposed. Relaxing the maintenance
constraints, a transition network with minimum train unit is established in the
first stage. A heuristic algorithm based on the transitions interchange is devised
to search for a feasible maintenance route. The algorithm is verified with the
operational timetable of Guangzhou-Shenzhen railway, and the performance is
satisfactory. Without consideration of empty movements, the algorithm can just
be applied in the situation where the depots are well planned.
Keywords: electrical motor units, circulation plan, heuristic algorithm.
1 Introduction
Before the year 2007, all the passenger trains on the traditional railway lines in
China were built-up with locomotive(s) and cars. The locomotives and passenger
car fleets are managed under a different department and operated separately
according to different plans. As the passenger trains often run across great
distances and take several days, most of the trains are allocated with multiple car
fleets. A car fleet is often assigned to execute a given train, except for a few
short-distance trains. The composition of fleets often persists over a relatively
long time unless there is maintenance.
With the train speed upgrade project and the development and operation of
passenger dedicated rail lines, Electrical Motor Units (EMU) are employed in the
operation of high-speed trains which run at 200-300km/h speed. There are two
Keywords
electrical motor units, circulation plan, heuristic algorithm
Related Book
Other papers in this volume
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