Research On The Planning Of City Agglomerations’ Inter-city Rail Network

Economic development and the acceleration of the urbanization process have promoted the development of the city to the cluster direction, thus forming a large-scale city agglomeration. With the expansion of the scale of the city agglomeration, people travel a wider range, city agglomeration requires a more comprehensive city transport system. This system is based on intercity railway as a skeleton, roads and waterways as supplement, to achieve the rapid travel of passengers. At present, there is no mature theoretical system for the planning of urban intercity railway network, which is still in the initial stage. In view of this problem, this paper attempts to provide a reference method for urban intercity railway network planning through the following research.First, the paper elaborates the basis of the theory of city agglomeration and intercity railway. This paper analyzes the relationship between intercity railway and city agglomeration from two aspects: the spatial structure of city agglomeration, the layout pattern of inter-city railway network, the relationship between intercity railway and the economic development of city agglomeration.Secondly, the paper expounds the concept and significance of the reasonable scale of the inter-city railway network, deduces the mechanism of the influencing factors and establishes the ladder hierarchy of relevant influencing factors. This paper summarizes the method of measuring the scale of railway network. It is proposed that the scale of intercity railway network of city agglomeration is calculated by using connectivity method, analogy model method and average load intensity method respectively. Then, using the method of weight index, the reasonable range of intercity railway network is obtained, which provides the basis for the planning of the inter-city railway network.Thirdly, the paper analyzes the planning principle of intercity railway network and briefly introduces the idea of road network planning, combines the traffic location theory with the node importance method, and puts forward the importance degree joint location planning method. Based on the determination of traffic network topology, this method obtains the preliminary planning scheme of intercity railway network by using the established planning model, and then adjusts the preliminary scheme to get the final plan.Finally, this paper takes the city agglomeration of Shandong Peninsula as an example.After analyzing and introducing the development of city agglomeration,this paper calculate and plan the road network based on the method proposed in this paper. Through the comparison with the actual planning scheme, the paper verifies the practicability and rationality of the theoretical method.