Title
Heuristic algorithms for single and multiple depot vehicle routing problems with pickups and deliveries
Abstract
The Vehicle Routing Problem with Pickups and Deliveries (VRPPD) is an extension to the classical Vehicle Routing Problem (VRP), where customers may both receive and send goods. We do not make the assumption common in the VRPPD literature, that goods may only be picked up after all deliveries have been completed. We also eschew the concept of insertion and propose a method that treats pickups and deliveries in an integrated manner. This method finds a solution to the corresponding VRP problem and modifies this solution to make it feasible for the VRPPD. Such modification is achieved mainly by heuristic routines taken from VRP methodology but modified such that their aim becomes the reduction of infeasibilities, although a number of problem-specific routines are also constructed. To render our procedures efficient when checking feasibility, we built appropriate mathematical relationships to describe changes in the maximum load of routes. Furthermore, several enhancements are introduced. Our methodology is also capable of solving multi-depot problems, which has not been done before for this challenging general version of the VRPPD. The methods are tested for single and multiple depot problems with encouraging results.
Year
DOI
Venue
2005
10.1016/j.ejor.2002.11.003
European Journal of Operational Research
Keywords
Field
DocType
Vehicle routing,Heuristics,Pickups and deliveries,Multiple depots
Vehicle routing problem,Mathematical optimization,Heuristic,Heuristics,Mathematics,Operations management
Journal
Volume
Issue
ISSN
162
1
0377-2217
Citations 
PageRank 
References 
101
4.34
9
Authors
2
Search Limit
100101
Name
Order
Citations
PageRank
Gabor Nagy133620.76
Saïd Salhi227112.41