Variable neighborhood search algorithms for pickup and delivery problems with loading constraints

In this paper, we explore a capacitated vehicle routing problem with loading constraints and mixed linehauls and backhauls. The problem belongs to the subclass of pickup and delivery problems. To solve this problem, we describe a set of variable neighborhood search approaches whose shaking and local...

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Bibliographic Details
Main Author: Pinto, Telmo (author)
Other Authors: Alves, Cláudio (author), Valério de Carvalho, José Manuel (author)
Format: article
Language:eng
Published: 2017
Subjects:
Online Access:http://hdl.handle.net/1822/53067
Country:Portugal
Oai:oai:repositorium.sdum.uminho.pt:1822/53067
Description
Summary:In this paper, we explore a capacitated vehicle routing problem with loading constraints and mixed linehauls and backhauls. The problem belongs to the subclass of pickup and delivery problems. To solve this problem, we describe a set of variable neighborhood search approaches whose shaking and local search phases rely on different neighborhood structures. Some of these structures were specially developed for this problem. All the strategies were implemented and exhaustively tested. The results of this computational study are discussed at the end of this paper.