Title :
Max-Min ant system for bus transit multi-depot vehicle scheduling problem with route time constraints
Author :
Hao, Xiaoni ; Jin, Wenzhou ; Wei, Ming
Author_Institution :
Sch. of Civil Eng. & Transp., South China Univ. of Technol., Guangzhou, China
Abstract :
The bus transit vehicle scheduling problem (VSP), in which a given set of scheduled trips have to be assigned to vehicles stationed at different depots, minimizing the capital cost and the overall operational cost, has caused great concern to the bus transit companies. Considering the real world operational restrictions, this paper researches the bus transit multi-depot vehicle scheduling problem with route time constraints and depot capability restrictions, and puts forward a model with comprehensive objective to minimize the number of required vehicles, travel time along deadheading trips and the waiting time at the starting stations of service trips for VSP satisfying a set of constraints. This problem is NP-hard, and therefore its solution is obtained by a Max-Min ant system. This article describes steps of the whole algorithm in detail, especially construction of solutions and pheromone updating rule. Finally, an example was analyzed to demonstrate that the correctness of the application of the MMAS, and it prove to be more efficient and effective in solving this problem compared with the ACS.
Keywords :
computational complexity; cost reduction; minimax techniques; minimisation; scheduling; transportation; NP-hard problem; bus transit companies; bus transit multidepot vehicle scheduling; capital cost minimization; depot capability restrictions; max-min ant system; operational cost minimization; pheromone updating rule; route time constraints; Mathematical model; Schedules; Scheduling; Sociology; Statistics; Time factors; Vehicles; Max-Min ant system; multiple depots; route time constraints; vehicle scheduling problem;
Conference_Titel :
Intelligent Control and Automation (WCICA), 2012 10th World Congress on
Conference_Location :
Beijing
Print_ISBN :
978-1-4673-1397-1
DOI :
10.1109/WCICA.2012.6357941