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- Title
A Generalized Insertion Heuristic for the Traveling Salesman Problem with Time Windows.
- Authors
Gendreau, Michel; Hertz, Alain; Laporte, Gilbert; Stan, Mihnea
- Abstract
This article describes a generalized insertion heuristic for the Traveling Salesman Problem with Time Windows in which the objective is the minimization of travel times. The algorithm gradually builds a route by inserting at each step a vertex in its neighbourhood on the current route, and performing a local reoptimization. This is done while checking the feasibility of the remaining part of the route. Backtracking is sometimes necessary. Once a feasible route has been determined, an attempt is made to improve it by applying a post-optimization phase based on the successive removal and reinsertion of all vertices. Tests performed on 375 instances indicate that the proposed heuristic compares very well with alternative methods and very often produces optimal or near-optimal solutions.
- Subjects
OPERATIONS research; SALES personnel; HEURISTIC; PRODUCTION scheduling; METHODOLOGY; HEURISTIC programming; ALGORITHMS; TIME
- Publication
Operations Research, 1998, Vol 46, Issue 3, p330
- ISSN
0030-364X
- Publication type
Article
- DOI
10.1287/opre.46.3.330