Express Delivery Companies In The City Distribution Studies

With the rapid development of TV shopping, online shopping, bottleneck effect of express delivery logistics become increasingly prominent. To solve this problem, it is not only required to put forward regulatory policies for express enterprises, but also need express companies base on themselves, to research issue of delivery in the city for express companies, rationally use enterprises internal and external resources to enhance the competitiveness of enterprises, the research about issue of city delivery has certain practical significance for express companies in the city. Therefore, starting from the basic operation of express companies, based on in-depth analysis about city delivery operations in the express companies, outsourcing of city delivery operations, study order distributing optimization of city delivery and self-support and outsourcing of city delivery service evaluation strategies in express companies and other problems, find the root of the problem, and appropriate way to solve the problem, thus to put forward feasible proposal to provide decision support for city delivery of express companies. The Paper conducts a comprehensive systematic study about city delivery of express companies from the following aspects:(1) reviewing status of research about express and express industry's delivery, outsourcing and delivery vehicle optimal scheduling made by domestic and foreign scholars, and proposed the main research contents and technical route for research about city delivery of express companies; combined with the basic theory of express companies'city delivery, to make comparative analysis about delivery patterns in domestic and international express companies, and take Railway Express as an example, for a in-depth analysis about entire transport process of express companies, the city delivery operation procedure, outsourcer city delivery process; On this basis, carry out analysis about the pros and cons for outsourcing of city delivery of express companies, mining problems existing in city delivery operation of express companies operating.(2)Order distributing is the most important operation city delivery of express item destination;its completion will have a direct impact on the efficiency of the whole delivery process. The type and capacity of vehicle for delivery, lowest total cargo capacity and other constraints to achieve maximization of total weight of cargo load delivery as the objective function, build an optimization model of order distributing for the city delivery of express companies with decision variables of 0-1 variable. Rationally use ordering theory, ordering the goods skillfully, design heuristic algorithm of order distributing for the city delivery of express companies, making relatively better order distributing program in worst-case scenario;give specific examples to further verify the proposed model and algorithm.(3)Combined operating problems,order distributing optimization problem, and services evaluation index in city delivery of express companies, put forward specific proposals and measures for self-support and outsourcing of city delivery in express companies; On this basis, considering design principles of operation services evaluation index of express companies, from the three aspects of time, quality, cost, construct operation services evaluation index system of city delivery in express companies, to evaluate operation services levels city delivery in express companies, and to provide theoretical reference and countermeasures for enterprises'strategic and tactical decision-making.