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ATMOS
2007
177views Optimization» more  ATMOS 2007»
9 years 5 months ago
Approximate dynamic programming for rail operations
Abstract. Approximate dynamic programming offers a new modeling and algorithmic strategy for complex problems such as rail operations. Problems in rail operations are often modeled...
Warren B. Powell, Belgacem Bouzaïene-Ayari
ATMOS
2007
163views Optimization» more  ATMOS 2007»
9 years 5 months ago
Branching Strategies to Improve Regularity of Crew Schedules in Ex-Urban Public Transit
We discuss timetables in ex-urban bus traffic that consist of many trips serviced every day together with some exceptions that do not repeat daily. Traditional optimization methods...
Ingmar Steinzen, Leena Suhl, Natalia Kliewer
ATMOS
2007
104views Optimization» more  ATMOS 2007»
9 years 5 months ago
Multistage Methods for Freight Train Classification
Riko Jacob, Peter Marton, Jens Maue, Marc Nunkesse...
ATMOS
2007
105views Optimization» more  ATMOS 2007»
9 years 5 months ago
Improved Search for Night Train Connections
Thorsten Gunkel, Matthias Müller-Hannemann, M...
ATMOS
2007
138views Optimization» more  ATMOS 2007»
9 years 5 months ago
A new concept of robustness
In this paper a new concept of robustness is introduced and the corresponding optimization problem is stated. This new concept is applied to transportation network designs in which...
Ricardo García, Ángel Marín, ...
ATMOS
2007
114views Optimization» more  ATMOS 2007»
9 years 5 months ago
Fast Approaches to Robust Railway Timetabling
The Train Timetabling Problem (TTP) consists in finding a train schedule on a railway network that satisfies some operational constraints and maximizes a profit function which c...
Matteo Fischetti, Arrigo Zanette, Domenico Salvagn...
ATMOS
2007
129views Optimization» more  ATMOS 2007»
9 years 5 months ago
Applied Railway Optimization in Production Planning at DSB S-tog - tasks, tools and challenges
Efficient public transportation is becoming increasingly vital for modern capitals. DSB S-tog a/s is the major supplier of rail traffic on the infrastructure of the city-rail netwo...
Jens Clausen
ATMOS
2007
9 years 5 months ago
Robust Algorithms and Price of Robustness in Shunting Problems
Serafino Cicerone, Gianlorenzo D'Angelo, Gabriele ...
ATMOS
2007
152views Optimization» more  ATMOS 2007»
9 years 5 months ago
Solution of the Train Platforming Problem
In this paper we study a general formulation of the train platforming problem, which contains as special cases all the versions previously considered in the literature as well as a...
Alberto Caprara, Laura Galli, Paolo Toth
ATMOS
2007
161views Optimization» more  ATMOS 2007»
9 years 5 months ago
Periodic Railway Timetabling with Event Flexibility
This paper addresses the problem of generating conflict-free periodic train timetables for large railway networks. We follow a two level approach, where a simplified track topolo...
Gabrio Curzio Caimi, Martin Fuchsberger, Marco Lau...
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