Estimates on rolling stock and crew in DSB S-tog based on timetables

Authors:
Michael Folkmann;Julie Jespersen;Morten N. Nielsen
Affiliations:
Danish State Railways, S-tog a/s, Production Planning, Denmark;Danish State Railways, S-tog a/s, Production Planning, Denmark;Danish State Railways, S-tog a/s, Production Planning, Denmark
Venue:
ATMOS'04 Proceedings of the 4th international Dagstuhl, ATMOS conference on Algorithmic approaches for transportation modeling, optimization, and systems
Year:
2004

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Abstract

Reliable evaluation of the efficiency of timetables is very important for transportation companies today, because of increased competition on the market in Europe. Two major contributions to the cost of a timetable are the rolling stock (RS) and crew. Especially when the service level is increased, it is necessary to evaluate the need for new RS and hiring of crew in advance. In this paper we describe two models, one for evaluating the amount of RS, and one for evaluating the crew needed for a given timetable. The decision makers use the models as tools to choose between different timetables, to dimension the workforce, and to decide on the optimal fleet composition before buying new RS.