A Study On Vehicle Scheduling Problems In The Distribution Centre Of Domestic Apparel Chain-business Enterprises

As a big player of apparel manufacturing and consuming in the worldthe clothing industries take a great part in the national economy in our country.The domestic apparel enterprises is still in the childhood stage.Products in apparel enterprises have the characteristics as followed:Product Life Cycle is short;it's usually impacted by season;the demond is hard to be projected.All these require the apparel enterprises have the ability to provide a high level logistics service.In recent years,a lot of apparel enterprises in our countries choose chain operation as their strategy so as to achieve economies of scale.However,while apparel enterprises are enlarging their scale rapidly,there are many problems have hinder their development.Among the problems which they need to solve first are these ones:the lack of goods has cause a large loss to them,the distribution efficience is in a low level and the distribution cost is too high.Till now,the researches on the subjuct of chain operation distribution in the apparel enterprises seldom establish the mathe model to give a dicription specificly and comprehensively;and most of the researches on the subjuct of Vehicle Scheduling Problems are inclined to research the algorithm.Because there's seldom rellevent research on the VSP which especially for the use of the chain operation distribution in the domestic apparel enterprises,this article provide a mathe model for the disribution decision-making based on the characteristcs of apparel enterprises.Besides of the traditional cost categories:route cost,fix cost and the cost related to the Time Window,this research also include the vehicle time value,and has its orginal points:take the lack cost as a part of the total object;has considered the cost related to the distribution quantity;on the basic of the customers' distribute value,this model also allows managers decide whether to serve for each customer or not and the decision on the distribution quantity.What's more,because it's hard to get the distribution cost coefficients from the traditional accounting,this article provides how to use Activity-Based Costing to get this information,in this part it's different from other articles which choose the cost coefficients as known information.At last this article give a example and use Genetic Algorithms to solve it.