Study On Analysing Methods Of Regional Traffic Network

Regional traffic network is a complex of section, station or interchange, and corresponding subsidiary facilities of different kinds of traffic modes. Sustained & high--speed development of the regional economy will continuously raise new demands to the layout, structure, and function of the regional traffic network. Modern regional traffic network is not only the updating of the traditional traffic network, but also facilities' platform for the essential transformation of the traffic & transportation mode, and also important groundwork for the overall, coordinated, and continuous development of regional economy. In this process, quantity, variety, type of station or interchange, connecting relationships, and matching extent with the demands of different kinds of traffic modes forming the regional traffic network all need to be known. At present, the study about this topic is infrequent. So the relative research for the basic theory and analysis approach is necessary.Based on this demand, linked with practical scientific research item, guided with the systemic, developing and dialectic concept, the paper looks the regional network as a whole, in the comprehensive transport network, tries to study the analysis approach in the aspects, such as the structure, function and etc. The purpose of the paper is to reveal the inner rule of the regional traffic and the relation of it with regional traffic demand, grasp the character and development mechanism. The paper stresses the composition, service capacity, structure optimization, assessment index, and sample analysis of the regional network. The paper includes 5 parts.1. Summary of the status in quo and definitude of the basic conceptFirst, by the survey of the research production and the application, the paper summarizes the relative study of the regional economy, regional traffic, comprehensive traffic, traffic corridor, traffic structure optimization, traffic network analysis, and points out the necessary to analyze the regional traffic network systematically. Then, the paper clarifies the basic concept of regional traffic network, analyses the regional traffic network environment, in order to know the relation of regional traffic network and outside system better, widen the vision of regional traffic network analysis research.2. Structural analysis and optimization method studyThe structure, main composition factor, the node and the section of the regional network are analyzed. The methods to the formal expression of the regional network and the compositive parts have established. Through establishing the objective function combined qualitative and quantitative means, the multi-objective optimization model of the regional traffic network structure is established, which includes the 5 aspects such as structure, performance and environment, offers method reference for the scientific quantitative analysis of the regional traffic network.3. Study on regional traffic network service capacityBased on the analysis on the service capacity of the regional traffic network, the concept and computational method of the physical service capacity, relative service capacity and applied service capacity are given, which offers method sustain to estimate the intrinsically performance of the regional traffic network.4. Assessment index system of the regional networkBased on the foundation of the indexes of the service capacity, equivalent network density, network closure, expansibility, from 5 aspects such as the structural, service performance, the assessment index system of the regional traffic network is build.5. Demonstration analysisCombined with the actual project, based on the idea and method in the paper, Chengdu urban area highway network, Chengdu scope highway network, Le-Cheng-Mian traffic corridor are demonstrated. Some advice relative the actual problem is put forward, which offers the reference to rationalization of the regional traffic network of Chengdu and relative region.