کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
473731 | 698808 | 2011 | 11 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: A Branch-and-Cut method for the Capacitated Location-Routing Problem A Branch-and-Cut method for the Capacitated Location-Routing Problem](/preview/png/473731.png)
Recent researches in the design of logistic networks have shown that the overall distribution cost may be excessive if routing decisions are ignored when locating depots. The Location-Routing Problem (LRP) overcomes this drawback by simultaneously tackling location and routing decisions. The aim of this paper is to propose an exact approach based on a Branch-and-Cut algorithm for solving the LRP with capacity constraints on depots and vehicles. The proposed method is based on a zero-one linear model strengthened by new families of valid inequalities. The computational evaluation on three sets of instances (34 instances in total), with 5–10 potential depots and 20–88 customers, shows that 26 instances with five depots are solved to optimality, including all instances with up to 40 customers and three with 50 customers.
Journal: Computers & Operations Research - Volume 38, Issue 6, June 2011, Pages 931–941