Quasi-Optimal Sizing of a Vehicle Fleet Considering Environmental Impact, Maintenance, and Eventual Containment Measures

In this paper, N types of vehicles having different environmental impacts and failure rates are considered to perform a set missions during predefined period. The sizing problem the fleet is typically based on literature for impact each type vehicle. This work intends develop model that allows considering not only extent recourse non-polluting but also preventive maintenance (PM) policy be adopted vehicles. More specifically, objective consists in determining simultaneously quasi-optimal number used, duration their use, average usage rate as well period according which vehicle should submitted maintenance. A mathematical developed express optimize expected total cost, includes costs related acquisition, operating, maintenance, addition resale value. Then, situation using acquired context health crisis with containment measures considered. latter make it impossible actions For such situations, given accumulated degradation absence cost modified generate new plan applied after exit. Numerical results fuel electric two brands (Renault Nissan) presented discussed.