Simultaneous vehicle and driver scheduling: A case study in a limousine rental company

  • Authors:
  • Benoít Laurent;Jin-Kao Hao

  • Affiliations:
  • Perinfo SA, 41 Avenue Jean Jaurès, 67100 Strasbourg, France and LERIA, Université d'Angers, 2 Boulevard Lavoisier, 49045 Angers Cedex 01, France;LERIA, Université d'Angers, 2 Boulevard Lavoisier, 49045 Angers Cedex 01, France

  • Venue:
  • Computers and Industrial Engineering
  • Year:
  • 2007

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Abstract

In this paper, we address a driver-vehicle scheduling problem in a limousine rental company. Given a set of trips to be covered, the goal consists in finding a driver-vehicle schedule that serves the maximum workload and optimizes several economic objectives while satisfying a set of imperative constraints. In this context, we propose a simultaneous scheduling of drivers and vehicles. The problem is modeled using the notion of partial consistent assignment. The solution approach is composed of two phases: the first one is based on constraint programming techniques and leads to the construction of an initial solution, improved in a second phase by a Simulated Annealing algorithm. Significant gains on the resulting solutions are systematically obtained in terms of quality, operational costs and elaboration time, compared to the current practice in the company.