In this paper, we present a mathematical model to design the service network, that is the set of origin-destination connections. The resulting model considers both full and empty freight car movements, and takes into account handling costs. More specifically, the model suggests the services to provide, as well as the number of trains and the number and type of cars traveling on each connection. Quality of service, which is measured as total travel time, is established by minimizing the waiting time of cars at intermediate stations. Our approach yields a multi-commodity network design problem with concave arc cost functions. To solve this problem, we implement a tabu search procedure which adopts "perturbing" mechanisms to force the algorithm to explore a larger portion of the feasible region. Computational results on realistic instances show a significant improvement over current practice.

Campetella, M., Pietropaoli, U., Ricciardi, N., Lulli, G. (2006). Freight Service Design for the Italian Railways Company. In ATMOS 2006 - 6th Workshop on Algorithmic Methods and Models for Optimization of Railways.

Freight Service Design for the Italian Railways Company

LULLI, GUGLIELMO
2006

Abstract

In this paper, we present a mathematical model to design the service network, that is the set of origin-destination connections. The resulting model considers both full and empty freight car movements, and takes into account handling costs. More specifically, the model suggests the services to provide, as well as the number of trains and the number and type of cars traveling on each connection. Quality of service, which is measured as total travel time, is established by minimizing the waiting time of cars at intermediate stations. Our approach yields a multi-commodity network design problem with concave arc cost functions. To solve this problem, we implement a tabu search procedure which adopts "perturbing" mechanisms to force the algorithm to explore a larger portion of the feasible region. Computational results on realistic instances show a significant improvement over current practice.
slide + paper
Service Network design, freight transportation, Tabu search.
English
ATMOS 2006 - 6th Workshop on Algorithmic Methods and Models for Optimization of Railways
978-3-939897-01-9
Campetella, M., Pietropaoli, U., Ricciardi, N., Lulli, G. (2006). Freight Service Design for the Italian Railways Company. In ATMOS 2006 - 6th Workshop on Algorithmic Methods and Models for Optimization of Railways.
Campetella, M; Pietropaoli, U; Ricciardi, N; Lulli, G
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/15524
Citazioni
  • Scopus 1
  • ???jsp.display-item.citation.isi??? ND
Social impact