Study On Traffic Structure For Urban Passenger Based On The Environmental Constraints

To speed up the process of urbanization our country makes urban transport problems increasingly conspicuous, urban transport sustainable development becomes a key issue of urban sustainable development, with the expense of the environment and resources to solve the traffic problem is a big misunderstanding of the construction of urban traffic. The experience of developed countries have proved that the growth of traffic supply can not always meet growth of transport in demand, urban transport system must find a reasonable, balanced and sustainable development objectives and modalities. To establish a sustainable development of urban transport modes and its security system with the goal of solution to traffic congestion and improve the quality of the environment, optimizing the use of resources, has great significance to our country's urban transport and urban economic development.Under the guidance of sustainable development and sustainable theoretical thinking of urban transport, this paper comparative analysis of the characteristics of each mode of transportation; Elaborate on structural optimization of urban passenger transport theory; Introduced both within and outside factors of the structure of urban passenger transport, the positioning of the passenger transport system and its adaptive capacity are determined by the specific thesis of these factors: the environmental problems, transport, transport infrastructure, as well as residents of mental travel behavior, customs and standards of living and other factors, and these factors fall into two categories to make correlation analysis, which are in the premise of structural optimization of urban passenger traffic; Comparative analysis to domestic and international passenger traffic in some optimization model of the structure, based on the ecology theory, considering the ecological limits of the constraints and to meet traffic demand, the largest reduction in the level of environmental pollution and resource consumption caused by the normal operation of traffic system, also make an urban passenger transport model for structural optimization based on environmental constraints; Combine the lessons learned from large cities at home and abroad and the actual situation of China's cities, some strategies and recommendations for the optimized structure of urban passenger transport are given out.This paper is divided into six chapters, the main contents of each chapter summarizes as follows:Chapter one, introduced the research background, purpose and significance of the thesis. Summarizes the research and development trend about current status at home and abroad. Provides an overview of the main research content, technical line and research methods.Chapter two, this chapter describes optimization theory of urban passenger transport structure, analysis of the different characteristics of structural optimization methods, and on this basis analysis related theoretical of structural optimization of passenger traffic based on environmental constraints.Chapter three, this chapter analyzes the influence factors of city passenger transport structure. External influencing factors including: transport policy, environmental capacity, the impact of vehicle technology and internal factors: transport infrastructure, transport mode characteristics of the participants, traffic analysis and so on, it's a prerequisite for urban passenger transport structural optimization in our country.Chapter four, this chapter built the optimization model of the structure of passenger traffic based on the environmental constraints through the comparative analysis of both the advantages and disadvantages of structure optimization model. In addition, a detailed analysis of the concept of ecological footprint of transport and the method of calculating is given out, also made a good theoretical basis for example.Chapter five, carried out analysis of Changchun City, for a calculation example, also proved the feasibility and effectiveness of the model. On the basis of empirical analysis, and with the successful experience in structural optimization of traffic about large cities at home and abroad, combined with the actual situation of our country's cities, a number of recommendations and strategy of optimize the structure of passenger traffic are given to large cities.Chapter six, the conclusion and expectation. Summarizes the main contents of this article, and issues for further innovation and research.During the course of the study of, this papers focus on merit-based disposable poor, learn from each other, a combination of qualitative and quantitative, and the novelty of this paper is mainly reflected in:1. The concept of ecological footprint is applied to the structure of urban passenger transportation analysis and study, from which established the urban passenger transport model for structural optimization based on the environmental constraints.2. After repeated scrutiny and verification, made a more systematic method summary of passenger traffic optimization model based on the environmental constraints.Structural optimization of the passenger traffic based on environmental constraints is aimed at the construction of convenient, safe, efficient, low pollution, the beauty of the landscape, ecological and environmental protection, public transport which is conductive to the diversification of the urban transportation system, for the purpose of promote the urban traffic and the coordinated development of urban construction, traffic efficiency, the protection of historical and cultural city of the traditional style, also the urban environment purification. The core of which is traffic accessible, orderly, and to participate in the transport system scalability. Its overall development objective is to establish a reasonable mode of transport, which can provide fast and comfortable travel conditions for the socio-economic development, meeting the transport demand, while minimizing environmental pollution and damage to truly improve the lives of human beings quality, promoting the city becomes the ideal of harmonious living environment with its own cultural characteristics between the natural and the artificial co-ordination.