文档介绍：摘要
摘 要
城市交通问题的改善本质上有赖于土地利用和交通之间的相互协调,这种协调宏观上体现在城市总体规划和城市综合交通规划的配合上,微观上则需要对具体的开发项目进行交通影响分析。在交通影响分析中,阈值的确定问题一直是其中的一个重点和难点,本文对我国城市交通影响分析的闽值进行了研究。
论文在综合分析国内外城市交通影响分析闽值的基础上,阐述了我国城市交通影响分析闽值确定的原则和闽值指标体系的建立,然后,提出了闽值指标确定的方法,即:通过影响范围内关键信号交叉ID的服务水平下降一个等级获得交通量阈值的下限:通过关键信号交叉口规划年既定服务水平下剩余服务流量获得交通量闽值的上限,从而获得一个交通量闽值区间。以此为基础, ;最后选取具有代表性的交叉口,以南京市交通影响分析蝴值指标的确定为例,提出了交通影响分析的高峰小时交通量阂值、EI交通量闰值以及规模阀值的指标。
【关键词】
交通影响分析;阈值;土地开发;通行能力;服务水平;出行生成
Abstract
The improvement of urban traffic condition essencially depends on the correspondence between land use and correspondence macroscopically depends on the corporation of general planning of land use mad prehensive traffic plan,microscopically it depends on traffic impact analysis(TIA)of site ,in the traffic impact analysis,threshold idenlifying is always a critical problem and a difficult one,this paper has a research on the threshold identifying of urban TIA in our country.
Based on prehensive analysis of overseas and domestic urban TIA threshold,the paper
expatiates the method for urban TIA threshold identifying ofour country and builds the threshold index ,the paper put forward method of threshold index identifying,namely,via the olle grade dropping ofLOS ofcritical sign intersection,we can confinn threshold lower limit;via the caculating of the rest capacity of the critical sign intersection in future when the LOS is given,we can confirm threshold upper limit,accordingly we get a range for on this it builts a non‘linear programming model which is to get the largest serving flow of sign intersection in specific LOS and
representative intersection,using Nanjing TIA threshold identifying as an example,putting forward its peak-hour traffic threshold,day traffic threshold and scale threshold.
[Keywords]traffic impact analysis threshold site development eapaeity level of service trip generation
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