Proposing A Mathematical Model, With Considering Three Fleets Of Vehicles, On-foot Porters And Drones

Due the importance of the on time servicing to customers, the need for creative and innovative mathematical modeling that routes the delivery fleet and minimize the whole time of delivery, is felt more than ever. For example, delivering parceles to customers, can be done by vans, on_foot porters or drones that each of these modes, has its own advantages and disadvantages. Also,some models have been invented for cooperation of vans with drones or on_foot porters with vans, but none of them have yet tried to combine all three modes at the same time. Therefore in this paper, the simultaneous combination of all three mentioned modes that selects the best mode for the delivery of parcels, is suggeste. Also, by comparing our mathematical model with the model given in this paper’s base article, it can be logically understood that due to the greater flexibility of our model in choosing the fleet to serve each customer the answer of our model can be equal to or better than the answer of this reference and will not be worse than that

کلیدواژه ها:

Urban Logistic ، Fleet Selection ، Vehicle Routing Problems ، Developmental And Integrational Model ، Triple Relationship ، Van ، On_Foot Porter ، Drone