We propose an exact algorithm for solving the green vehicle routing problem (G-VRP). The G-VRP models the optimal routing of an alternative fuel vehicle fleet to serve a set of geographically scattered customers. Vehicles’ fuel autonomy and possible refueling stops en route are explicitly modeled and maximum duration constraints are imposed on each vehicle route. We model the G-VRP as a set partitioning problem in which columns represent feasible routes corresponding to simple circuits in a multigraph. Each node in the multigraph represents one customer and each arc between two customers represents a nondominated path through a set of refueling stations visited by a vehicle when traveling directly between the two customers. We strengthen the set partitioning formulation by adding valid inequalities including k -path cuts and describe a method for separating them. We provide computational results on benchmark instances showing that the algorithm can optimally solve instances with up to ∼110 customers. The online appendix is available at https://doi.org/10.1287/trsc.2016.0734 .
An Exact Algorithm for the Green Vehicle Routing Problem
Transportation science ; 51 , 4
2017
Article (Journal)
English
Local classification TIB: | 770/1935/7000 | |
BKL: | 55.80 / 55.80 Verkehrswesen, Transportwesen: Allgemeines |
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