Research On The Programming Of The Logistics Delivery Truck Fleet

With the development of technology, the modes and means of the competition inter-enterprises turned to diversification. The enterprise will gain the competitive superiority only when they contracted with the related client to form the supply-chain to decrease cost and provide knight service. Logistics delivery enterprise play the important role in the side of the cost control and providing rapid and accurate service as the carrier of material flowing, the problem of the size of the logistics delivery truck fleet come out.This thesis confirms the size of the logistics delivery truck fleet to satisfy the client delivery demanding. It also needs to satisfy the additional requirement brought by the reasonable fluctuation of the customers' demanding, and ensure the profit of the truck fleet maximum. The thesis sufficient considered the management speciality of the delivery truck fleet, and reasonably selects the target of evaluating delivery team to validate the feasibility of the delivery truck fleet design model.In order to harmonize the size of delivery truck fleet, transportation cost and service quality in the research, the thesis adopts heuristics and multi-variable integer linear programming, and quotes the "Period and phase of customer replenishment" to establish delivery truck fleet design model, gets the result in two period, and validates the result through calculating the instance and appraising the target.