城市邊緣區(qū)公交線網(wǎng)設(shè)計優(yōu)化研究
[Abstract]:The rapid development of social economy is pushing forward the urbanization process of our country constantly, the city scope expands continuously, the city, the countryside influence each other, infiltrate each other, formed the special area of the urban fringe area. Urban fringe area is an important link of urban and rural development. As a key link to support its development, traffic plays an important role in the process of realizing the sustainable development of urban fringe area and even the city as a whole. In the urban traffic planning, the urban fringe area is easily neglected because of the backward transportation facilities and the small service range. Under the background of "bus priority", because of the low income level of residents in urban fringe areas and the sensitivity to travel costs, it is of great significance to study the design and optimization of bus network in urban fringe areas. The optimization design of bus network in urban fringe area can not only provide the travel service with high performance and price ratio, but also meet the development requirements of energy saving and environmental protection, which is very consistent with the development goal of our country at the present stage. In this paper, the design and optimization of urban fringe bus network are studied from the following aspects: firstly, the paper summarizes the urban fringe area, and analyzes the characteristics of transition and dependence of the urban fringe area in detail. This paper summarizes the factors influencing the definition of marginal areas, constructs the index system of evaluation and definition, probes into the principles and steps of the definition, and puts forward a method of defining urban marginal areas based on K-Means spatial clustering method. It lays a good foundation for the further study of the urban fringe area. Secondly, from the perspective of overall urban and rural development and bus priority development, based on the theory of urban traffic planning, this paper analyzes the characteristics of passenger source, time distribution and distribution of urban fringe residents' travel. According to the definition of the urban fringe area in this paper, the method of forecasting the demand for the passenger flow in the marginal area is put forward, which provides a scientific basis for the design and optimization of the bus network in the marginal area. Finally, for the purpose of providing convenient, safe, economical and efficient travel services for the residents of the urban fringe areas, through the analysis of the spatial system layout, traffic demand, road conditions of the urban fringe areas, The influence of the development policy on the design of the marginal area network is discussed. The principle and the specific requirements of the design optimization of the edge area bus network are determined. According to the close relationship between the urban fringe area and the central urban area and the surrounding area, the paper synthesizes the travel demand of the urban fringe area, and draws lessons from the conventional urban transit network design method. Based on the analysis of node importance, a method of line selection for urban edge layer design is proposed. The optimal line search method, the Hamilton loop method and the minimum tree method are used to form the initial line network for the hierarchical network structure of the main line, the secondary trunk line and the branch line in the edge area. Considering the different requirements of the residents' travel network and the operating cost of the enterprises, the three-level network is divided into two types, and the optimization model of the network is established. The optimization model is established for the main line of the edge area with the minimum passenger travel cost and the minimum operating cost of the enterprise, and the optimization model for the secondary trunk line and branch line is established with the minimum transfer rate and the minimum operating cost of the public transport, and the genetic algorithm is used to solve the optimization model. In the end, the paper optimizes the bus network in the ecological edge of mP Ba in Xi'an by using the optimization model.
【學(xué)位授予單位】:蘭州交通大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2015
【分類號】:U491.17
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