Optimal locomotive assignment for a railroad network

B - Operations – Transporting – 61 – L

Patent

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B61L 27/00 (2006.01) G08G 1/123 (2006.01) G06Q 10/00 (2006.01)

Patent

CA 2395144

A computer-im-plemented method for optimizing locomotive assignments on a railroad network. The locomotives are assigned to power and signaling classes, based on equipment installed within each locomotive. An objective function is set forth that considers the cost of moving extra power in the network, the penalties incurred for late train departures due to the failure to assign an appropriately-equipped locomotive and the cost of train operation. Various constraints are set forth that must be taken into consideration when optimizing the objective function.

L'invention concerne un procédé informatique destiné à optimiser les affectations de locomotives dans un réseau ferroviaire. Les locomotives sont affectées à des classes de puissance et signalisation, en fonction des équipements installés dans chacune d'elles. Une fonction économique consiste à prendre en compte le coût du déplacement d'un surcroît de puissance dans le réseau, les pénalisations subies à cause de départs de trains retardés du fait de l'omission d'affecter une locomotive correctement équipée et le coût d'exploitation des trains. L'invention traite de diverses contraintes qu'il convient de prendre en compte lors de l'optimisation de la fonction économique.

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