In this paper we tackle a two-echelon location-routing problem (2E-LRP) by a tabu search metaheuristic. The aim is to define the location and number of two kinds of capacitated facilities, the size of two different vehicle fleets and the related routes on each echelon. The proposed Tabu Search (TS) for the 2E-LRP is based on the decomposition of the problem in two location-routing sub-problems,...

Solving the Inventory Location-Routing Problem can been seen as an approach to optimize both a supply chain design and its operations costs. Assumptions consider that vehicles might visit more than one retailer per route and that inventory management decisions are included for a multi-depot, multi-retailer system with storage capacity over a discrete time planning horizon. The problem is to det...

the location-routing problem is a relatively new branch of logistics system. its objective is to determine a suitable location for constructing distribution warehouses and proper transportation routing from warehouse to the customer. in this study, the location-routing problem is investigated with considering fuzzy servicing time window for each customer. another important issue in this regard ...

in this study the location routing problem with fuzzy parameters is taken into account, this problem involves determining the location of the depots and routing of the vehicles in order to serve the customers. in this study a location routing problem with fuzzy travel times and due dates is considered and two objective models are proposed. the considered objectives are minimizing the total cost...

In this paper, we propose a new mathematical model for Capacitated Inventory Routing Problem (CIRP), which considers freshly delivery of perishable products to the customers’ location; otherwise, a reduction in products’ demand may occur. Therefore, we attempt to plan delivering process of products at the right time to avoid extra inventory causing increase in age of products. This ...

This paper develops a new mathematical model to study location-routing problem with simultaneous pickup and delivery under the risk of disruption. A remarkable number previous studies have assumed that network components ( e.g. , routes, production factories, depots, etc.) are always available can permanently serve customers. assumption is no longer valid when faces disruptions such as flood, e...