【作者】 张征；

【导师】 王东炜； 严亚丹；

【作者基本信息】 郑州大学 ， 道路与铁道工程， 2016， 硕士

【摘要】 我国《城市道路工程设计规范》(CJJ 37-2012)中规定,城市道路应按道路在道路网中的地位、交通功能以及对沿线的服务功能等,分为快速路、主干路、次干路和支路四个等级。功能分析是城市道路设计的基础,不同等级道路的功能定位及其数学描述具有重要的研究意义。支路与城市居民的生活、出行密切相关,规划设计和交通组织时既要充分保证其服务功能,亦要兼顾交通功能。现阶段,国内外对城市支路的关注与研究明显滞后于干路系统,极少在功能分析的基础上进行支路功能可靠度的定量化评价,且交通组织方案决策过程中对支路的功能考虑不足。论文在国家自然科学基金项目“基于功能分析的城市道路交通方案分阶段技术评价与决策研究”(项目编号:51278468)的支持下,以功能描述为着眼点,对支路功能的量化指标进行研究,明确支路进行单向交通组织设计的规则,以期为城市支路的规划建设和交通管理提供理论依据和参考。首先,明确支路的两大主要功能——服务功能与交通功能。为实现城市居民出行可达性的需求,在城市总体规划阶段,应保证支路具有合理的密度;在城市道路交通组织阶段,定义绕行指数作为支路服务功能的量化指标。交通功能方面,支路应配合次干路系统快速完成交通流的集散,运行速度较为重要。其次,研究单向交通组织方式对支路功能的影响。基于单向交通的实施条件和优缺点,构建单向交通对于路网的绕行距离影响模型,研究了绕行指数的阈值范围。最后以郑州市中心区某一包含单行支路的区域路网为例,采用微观交通仿真手段,结合所提出的功能指标,对支路网单、双行条件下的交通功能与服务功能进行对比分析。计算结果表明,单向交通使得支路交通功能提高,但幅度较小,反而增加了绕行,导致其服务功能降低较多。交通组织设计时,应进行综合考虑。更多还原

【Abstract】 It is proposed clearly in the Code for Design of Urban Road Engineering CJJ 37-2012 that urban roads according to their importance, traffic mobility function and service function in the network can be divided into four levels, i.e. expressway, arterial road, minor arterial road and local road. Function analysis is the foundation of urban road design. The functional orientation and mathematical description of each level roads have important research significance. Local roads relate to the life and travel of urban residents closely. In the planning design and traffic organization of local road, it is not only to ensure the service function, but also to consider the traffic mobility function. At present, attention and research on local road is lagging behind arterial road system at home and abroad. The quantitative evaluation of local road function reliability based on functional analysis is especially lacking. And in the decision making process of traffic organization, it is also not enough to consider local road function.The study is supported by National Nature Science Foundation Program of Technical Evaluation and Decision-making by Stages of Urban Road Traffic Scheme Based on Function Analysis(program number: 51278468). Taking the functional description as keystone, this paper states the functional quantitative index of local road and one-way traffic organization rules to provide theoretical basis and decision reference for local road planning, construction and traffic management.Firstly, two major functions of local road are defined, which are traffic mobility function and service function. In order to realize the travel accessibility demand of urban residents, reasonable density of local road should be ensure during the stage of urban master planning. In the urban road traffic organization stage, the detour index is introduced to quantify the service function of local road. As for traffic mobility function, local road should cooperate with minor arterial road to complete traffic flow distribution rapidly. So the travel speed is very important.Secondly, the influence of one-way traffic organization on local road function is studied. Based on the implementation conditions, advantages and disadvantages of one-way traffic, the model of one-way traffic detour distance is used to evaluate urban road network efficiency. Accordingly, threshold value of detour index is determined.Finally, a regional road network system in Zhengzhou city is taken as an example, which contains one-way local road network. By the microscopic traffic simulation method, the proposed functional indexes above are used to evaluate the traffic mobility function and the service function of local road, and compare one-way street network with two-way operation. Calculation results show that one-way local roads have higher traffic mobility function than two-way streets, though, the contribution is little. Conversely, one-way operation increases travel detour distance, so that its service function decreases rapidly. Two functions of local road should be considered comprehensively in traffic organization design.更多还原