Optimal Train Control At A Junction
In The Main Line Rail Network Using
A New Object-oriented Signalling System Model
Author(s)
R. Takagi, P. F. Weston, C. J. Goodman, C. Bouch,
J. Armstrong, J. Preston & S. Sone
Abstract
On a main line railway network with many junctions, the delay of a train is likely
to cause delays to many other trains, especially because of conflicts at junctions.
Optimising one junction, however, may have an adverse effect on other parts of
the rail network because of the mixed-traffic situation of most main line
railways. To approach the complicated problem of optimal re-scheduling in
response to the delay of a train, an efficient algorithm must be sought.
The authors have taken a junction as an example, and have performed
numerical optimisation on a case when the services through this junction are
disrupted. The objective criterion is the weighted sum of train times. The
optimisation program uses the Object-Oriented Multi-Train Simulator (OOMTS)
developed by Birmingham University, as an embedded simulator. In the
optimisation routine, a Genetic Algorithm (GA) was used to optimise the order
of route setting.
In this paper, the authors give details of a model junction, and a brief
explanation of the OOMTS. The authors then explain how a GA can be applied
to solve this problem, especially the chromosomal expression of the problem.
The results of numerical optimisations for different weighting parameters are
shown based on which the authors discuss the feasibility of the proposed method.
Keywords: object-oriented, multi-train simulator, railway signalling, junction,
train pathing, optimisation, Genetic Algorithm.
Keywords
object-oriented, multi-train simulator, railway signalling, junction,
train pathing, optimisation, Genetic Algorithm.
Related Book
Other papers in this volume
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