The Research Of Logistics Park Layout And Traffic Organization Optimization For Railway Freight Yard

In the context of railway freight reform, the railway freight station in our country has begun to transform into a modern logistics in order to meet the development and changes of the logistics market. Logistics parks relying on the railway freight yard arise. However, problems arise in the process of building the park, such as the operation inefficiency, traffic organization congestion, increased transportation costs and time, etc. Based on the status quo, the research is put forward in order to achieve high operational efficiency and unimpeded traffic organization of the park.Firstly, the differences between the logistics park relying on the rail freight yard (hereinafter referred to as the Railway Logistics Park) and the traditional freight yard are proposed in the paper. The requirement of the park’s feature set is proposed, and the links between the park’s layout and traffic organization is analyzed. Combined with the characteristics of the railway logistics park layout and traffic organization, the idea of the internal traffic organization based on the layout scheme of the railway logistics park is proposed in the paper.Secondly, on the basis of the existing theoretical study of the layout and traffic organization, the impact of the existing railway yard facilities(existing warehouses, existing loading and unloading railway lines, etc.)on the layout is fully considered combining with the features of railway logistics park. By using the improved SLP method, the layout of the functional area is studied. The best layout scheme is got through genetic algorithms.Based on the obtained layout scheme and the combination of the actual situation surrounding the park, the traffic organization in the park is optimized considering the road layout, entrances, parking lot and other factors. In the phases of road layout optimization, the goal programming model is used to arrange the inner road of the park hierarchically. In the entrance optimization, qualitative and quantitative methods are adopted in order to achieve the minimum total distance between each functional area and the entrances. The optimization of the parking lot is briefly introduced in the paper. And the optimization solution of the parking lot is proposed combined with the business type of the functional area in the park.Finally, the logistics park T relying on an integrated railway freight yard hub is taken as an example. The layout scheme is got by using an improved SLP method.Further, the traffic organization of the park is optimized. In turn, it verified the practicality and effectiveness of the research.