Research On Service Radius Of Logistics Node Based On The Satisfactory Degree Theory

Nodes location is one of the four strategic areas in the design of logistics network, and service radius of node is a key and critical one during the location. Whether service radius of node is reasonable or not, it directly connect with the efficiency of logistics system, logistics cost and customer contentment. The management idea of serving customers in modern logistics companies is transformed into the management idea of satisfying customers, time satisfaction has turned out to be one of the most important indices of customer satisfaction. This dissertation studies the service radius of logistics node on the basis of time satisfaction, respectively brings forward service radius model of single-point and multi-point in order to provide some new methods and ideas about the location programming on logistics network.Considering nodes location from the standpoint of logistics companies hasn't met new development and requirement of logistics. So especially analyzes the action of time element in logistics services, introduces time satisfaction to reflect the new trends in the development of logistics, and quantifies the degree of customer time satisfaction in logistics system by applying the satisfactory degree theory, analyzes the basic meaning and influencing factors about service radius of logistics node.In allusion to the single-logistics node's service radius model, not only seeks the balance of service capacity and running cost from the standpoint of logistics companies, but also optimizes the model through the definition of the characteristics of customer demand by using temporal contentment function from the standpoint of customers, and explains how to achieve the optimized service radius for single-logistics node.In allusion to the multi-logistics node's service radius model, sets the lowest cost and maximum customer satisfaction as the decision objective to determine the optimal number of logistics node, location and reasonable service radius, and provides a new adaptive ant-colony clustering algorithm for solving the model, finally simulates the multi-logistics node's service radius model through an example by using MATLAB, fully analyses how to set and choose the related parameters, proves the validity and maneuverability of the model and algorithm.