| Collaborative distribution(CD),with the advantages of reducing logistic’s costs,improving resources utilization rates,the level of customers’ service and alleviating the traffic pressure effectively,it has been widely applied in developed countries such as Japan and the USA.Thus it has been attaching more attention of the governments.Although great progress of Chinese logistics in the past few years,there is a big gap with the western countries.The logistic industry in China started late,and the implementation of collaborative distribution is also hindered by many factors.In addition,the calculation of collaborative distribution benefits is not systematic and comprehensive,what’s more,there is also a lack of a visual evaluation system for collaborative distribution’s benefits.To address these problems,this paper focused on the benefits of CD in which economy,environment and resources utilization rate which are most concerned by enterprise and social development,it aims to help enterprise make a better decision through the system.For the random CD problems which clients demand and location is not fixed,a random CD model was constructed firstly,it presented the changes of the network between before and after CD in the form of network diagram.On the basis of this,the author discussed the vehicle routing problem of random CD.the vehicle routing problem with multiple distribution centers was transformed into a vehicle routing problem with single distribution center under the idea of aggregation optimization,which simplified the complexity of the problems,and it is beneficial to subsequent system development.Then,scientific research of eight benefit index which involved economy environment and resource has been established.Then,the visual evaluation system was designed.The author constructed the requiremental model,analysised the potential user type of the system in the basis of the model and characteristics of the random CD,besides,constructed the function structure and designed the key data model according to the requirement model and the calculation method of benefits.At last,according to the model,selected C sharp language and Sql Server database,did the actual development work in the development platform of Visual Studio2010.Finally,in view of the previous model and algorithm,three groups of delivery experiments was designed to verify the effectiveness of the model and algorithm.The author explored the impact of various factors on the effectiveness of CD through the experiments. |