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- Title
Optimizing routes and stock.
- Authors
García, Irma; Pacheco, Joaquín; Alvarez, Ada
- Abstract
This work is motivated by a problem proposed to the authors by a bakery company in Northern Spain. The objective is to design the daily routes over the week in order to minimize the total traveled distance. For reducing this total distance, some flexibility in the dates of delivery is introduced, which will cause a stock. Therefore, we study the problem under the bi-objective perspective, 'minimizing' simultaneously the total traveled distance and the stock. A bi-objective mixed-integer linear model for the problem is formulated and two methodologies of solution are presented. The first one is based on a series of linked variable neighborhood searches and the second one is based on NSGA-II provided of specific operators. Numerical results showing the obtained estimated Pareto front in both cases are presented.
- Subjects
LINEAR statistical models; INTEGERS; MATHEMATICS; EVEN numbers; MATHEMATICAL models
- Publication
Journal of Heuristics, 2013, Vol 19, Issue 2, p157
- ISSN
1381-1231
- Publication type
Article
- DOI
10.1007/s10732-011-9182-2