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Advisor(s)
Abstract(s)
Operational planning within public transit companies has been extensively tackled but still remains a challenging area for operations research models and techniques. This phase of the planning process comprises vehicle scheduling, crew scheduling and rostering problems. In this paper, a new integer mathematical formulation to describe the integrated vehicle-crew-rostering problem is presented. The method proposed to solve this multi-objective problem is a sequential algorithm considered within a preemptive goal programming framework that starts from the solution of an integrated vehicle and crew scheduling problem and ends with the solution of a driver rostering problem. Feasible solutions for the vehicle and crew scheduling problem are obtained by combining a column generation scheme with a branch-and-bound method. These solutions are the input of the rostering problem, which is tackled through a mixed binary linear programming approach. An application to real data of a Portuguese bus company is reported and shows the importance of integrating the three scheduling problems.
Description
Keywords
binary linear programming vehicle scheduling crew scheduling driver rostering multi-objective problems
Pedagogical Context
Citation
Mesquita, Marta ... [et al.]. 2008. "Solving Public Transit Scheduling Problems". Universidade de Lisboa - Centro de Investigação Operacional – CIO - Working paper nº 1/2008
Publisher
Centro de Investigação Operacional - Universidade de Lisboa
