Efficient Circulation of Railway Rolling Stock
Transportation Science
Circulation of railway rolling stock: a branch-and-price approach
Computers and Operations Research
Robust rolling stock in rapid transit networks
Computers and Operations Research
Estimates on rolling stock and crew in DSB S-tog based on timetables
ATMOS'04 Proceedings of the 4th international Dagstuhl, ATMOS conference on Algorithmic approaches for transportation modeling, optimization, and systems
Rotation planning of locomotive and carriage groups with shared capacities
ATMOS'04 Proceedings of the 4th international Dagstuhl, ATMOS conference on Algorithmic approaches for transportation modeling, optimization, and systems
Models and algorithms for the train unit assignment problem
ISCO'12 Proceedings of the Second international conference on Combinatorial Optimization
A Lagrangian heuristic for a train-unit assignment problem
Discrete Applied Mathematics
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Because of the upcoming deregulation and the advent of high-speed rail networks, European passenger railroads are battling for customers among themselves and with other means of transportation. To maintain a competitive advantage, they rely on the scheduling process as a key factor in winning market share. Societe Nationale des Chemins de Fer Francais (SNCF), in partnership with SABRE Technology Solutions, has developed RailPlus, a strategic schedule planning system, and RailCap, a tactical capacity-adjustment system, to meet the new challenges of the rail business. The heart of these systems is a set of advanced operations research models that enable analysts to take a global approach to decision making. The two systems combined provide 110 million francs in incremental revenue per year and substantially reduce operating costs. In addition, the two systems have become the foundation for the reorganization of SNCF/TGV.