Vehicle Routing Problem Heterogeneous Fleet

In the fsmvrp vehicles have differing vehicle capacities for different vehicle types and the number of vehicles is not limited.

Heroes and generals captured vehicles. This paper presents a robust branch cut and price algorithm for the heterogeneous fleet vehicle routing problem hfvrp vehicles may have various capacities and xed costs. The heterogeneous fleet vehicle routing problem hfvrp. In the well known vehicle routing problem vrp a set of identical vehicles based at a central depot is to be optimally routed to supply customers with known demands subject to vehicle capacity constraints.

It is a new variant of the heterogeneous fixed fleet vehicle routing problem hffvrp in which a fleet consists of a fixed number of vehicles with different capacities fixed costs and variable costs. The hvrp differs from the classical vrp in that it deals with a heterogeneous fleet of vehicles having various capacities fixed costs and variable costs. The fleet size and mix vehicle routing problem fsmvrp is one of the earlier problem variants with a heterogeneous fleet.

Instead of assuming that all vehicles are identical there is an availability of several vehicle types with dierent charac teristics. Alves m almeida j oliveira j pinto a. The hfgvrptw aims to find a set of routes served by different vehicles to minimize the carbon emissions while respecting constraints on time and different vehicle capacities.

The columns in the formu lation are associated toq routes a relaxation of capacitated elementary routes that makes the pricing problem solvable in pseudo polynomial time. To represent the problem mathematically we adopt a mixed integer programming model for objective of minimizing the sum of variable operation costs including a cost benefit assessment of acquiring. Springer proceedings in mathematics statistics vol 278.

2019 capacitated vehicle routing problem with heterogeneous fixed proprietary fleet and outsourcing deliverya clustering based approach. We formulate this problem with a mixed integer programming model by introducing an approach to calculate fuel and carbon emissions. Abstract in this paper a problem variant of the vehicle routing problem with time windows is introduced to consider vehicle routing with a heterogeneous fleet a limited number of vehicles and.

Given the diversity of the vehicle fleet and variations in carbon emissions we look specifically at the carbon emission based heterogeneous vehicle routing problem c hvrp 2 and further narrow it down to the case of a fixed fleet of vehicles and the problem of determining their optimal routing. An important variant of the vrp arises when a fleet of vehicles characterized by different capacities and costs is available for distribution activities. Thus the heterogeneous fleet green vehicle routing problem with time windows hfgvrptw was proposed.