• A Multi-Vehicle Cyclic Inventory Routing Problem (MV-CIRP) is studied. MV-CIRP the extension of Single-Vehicle CIRP (SV-CIRP). mixed integer nonlinear programming model formulated. Simulated Annealing algorithm proposed to solve both SV-CIRP and MV-CIRP. This paper presents a new variant which aims determine subset customers be visited, appropriate number vehicles used, corresponding cycle ti...

In Multi-Echelon Vehicle Routing Problems the delivery from one or more depots to the customers is managed by routing and consolidating the freight through intermediate depots, called satellites. This family of problems differs from Multi-Echelon Distribution Systems present in the literature. In the latter the attention is focused on the flow assignment among the levels only, while we also con...

Aiming at the multi-depot heterogeneous vehicle routing problem under time-dependent road network and soft time window, considering fixed cost, window penalty cost transportation an optimization model of is established with objective minimizing distribution cost. According to characteristics problem, a hybrid genetic algorithm variable neighborhood search temporal–spatial distance designed. Cus...