Valid inequalities for the synchronization bus timetabling problem

Abstract : Bus transit network planning is a complex process that is divided into several phases such as: line planning, timetable generation, vehicle scheduling, and crew scheduling. In this work, we address the timetable generation which consists in scheduling the departure times for all trips of each bus line. We focus on the Synchronization Bus Timetabling Problem (SBTP) that favors passenger transfers and avoids congestion of buses at common stops. A Mixed Integer Program (MIP) was proposed in the literature for the SBTP but it fails to solve real bus network instances. We develop in this paper four classes of valid inequalities for this MIP using combinatorial properties of the SBTP on the number of synchronizations. Experimental results show that large instances are solved within few minutes with a relative deviation from the optimal solution that is usually less than 3 percent.
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https://hal.sorbonne-universite.fr/hal-01303053
Contributor : Safia Kedad-Sidhoum <>
Submitted on : Friday, April 15, 2016 - 5:08:13 PM
Last modification on : Friday, July 26, 2019 - 11:58:03 AM

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Pierre Fouilhoux, Ibarra-Rojas Omar J., Safia Kedad-Sidhoum, Yasmin Rios-Solis. Valid inequalities for the synchronization bus timetabling problem. European Journal of Operational Research, Elsevier, 2016, 251 (2), pp.442-450. ⟨10.1016/j.ejor.2015.12.006⟩. ⟨hal-01303053⟩

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