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基于生态交通的城市交通方式结构优化研究

Urban Traffic Mode Structure Optimization Based on Eco-transportation

【作者】 管菊香

【导师】 朱顺应;

【作者基本信息】 武汉理工大学 , 交通运输规划与管理, 2007, 硕士

【摘要】 生态交通系统是未来城市交通的发展方向,城市交通方式结构是影响城市生态交通能否实现的至关重要的因素。本文主要研究了在发展生态交通的基础上,以交通方式结构为切入点,研究了面向生态交通的大城市的交通方式结构优化模型。论文主要分为五个部分,首先介绍生态交通系统的基本理论,阐述生态交通的内涵、发展目标及影响因素等,为交通方式结构优化模型中的优化目标与约束条件的选取奠定坚实的基础。第二部分对交通方式结构进行了系统的分析阐述,分析了不同交通方式的特征、交通方式结构的影响因素、交通方式结构对生态交通的影响,以此为依据来确定各交通方式的分担比例的可行范围的以及优化模型中一系列参数。第三部分分析了生态交通系统总体容量,系统阐述生态交通系统总体容量的定义,并从时空资源、生态环境、能源三方面因素考虑了生态交通系统的容量,并给出了相应的计算模型,生态交通系统总体容量的确定以便对城市交通供求平衡状态进行分析,为确定有利于生态交通发展的交通方式结构提供技术支持。第四部分则是优化模型的建立。首先根据在生态交通系统中各种交通方式的合理定位确定发展型的交通方式与限制型的交通方式,在此基础上结合居民收入水平、时间价值、各种交通方式的优势与特点等分别确定各交通方式的分担比例上下限。结合生态交通发展目标分析优化目标与约束条件,并利用不确定性规划理论(基于未来交通需求总量、道路资源总量、能源消耗总量、环境污染总量的不确定性,这些量均采用模糊数表示),建立交通方式结构优化的模糊规划模型,并给出相应的推导过程。其中模型采用遗传算法进行求解,求解之后可得到交通方式结构,然后进行交通分配与交通评价,如未达到生态交通的发展目标,则进行下一次优化,直到满足要求为止,整个优化过程是一个动态多次循环优化的过程。实例分析以长沙市为例。

【Abstract】 Urban eco-transportation system is the development direction of urban transportation in future, and urban traffic mode structure is an all-important factor that affects the realization of urban eco-transportation system. This paper takes eco-transportation as the basis, chooses traffic mode structure as the starting point; makes a research of the optimization of urban traffic mode structure which based on eco-transportation.This paper consists of five parts. The first part introduces the basic theory such as the meaning, the development objections and the influence factors of eco-transportation system, this could lay a solid foundation for the choice of optimization objections and constrains in the traffic mode structure optimization model. The second part makes a systemic explanation of traffic mode structure, it analyzes the characteristics of different traffic modes, the influence factors of traffic mode structure and its influence to eco-transportation and so on, and takes this as the basis to determine upper-lower bound of each traffic mode as well as a series of parameters. The third part analyzes the whole capacity of eco-transportation system, first expatiates the definition, then from space-time, eco-environment and energy resource three aspects to consider the whole capacity, as well as their calculate models, these make for the analyses of the supply-demand of urban transportation, so offer technical support for determining the traffic mode structure which conductive to the development of eco-transportation. The fourth part constructs the model. Firstly, according to the reasonable orientation of each traffic mode determine the development and the restrictive modes, and combine with citizen income, time value, superiority and characteristic of each traffic mode and so on to determine the upper-lower bound of each traffic mode. Secondly, analyzes the main objectives and constrains based on eco-transportation development goals, then establishes an fuzzy programming model as well as its derivation process of optimization of traffic mode structure based on uncertainty planning theory (consider the total traffic demand, the total road resource, the total energy resource and the total environments pollution have uncertainty in future, so these variables are expressed using fuzzy numbers). Additional, we use genetic algorithm to solve the model, and after the optimization, we could get a traffic mode structure, then take traffic assignment and traffic evaluation in order to identify the result whether or not satisfy the require of eco-transportation system. If not, take a next optimization until achieve the development goals of eco-transportation, so it is a dynamic optimization process. And it chooses ChangSha as example to analyze.

  • 【分类号】U491.12
  • 【被引频次】28
  • 【下载频次】1515
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