Y型信号交叉口通行能力分析

Analysis on traffic capacity of signalized Y-intersection

道路通行能力分析可以为公路规划和设计以及交通控制与管理等提供设计依据和基础数据。文中阐述国内外信号交叉口通行能力分析的方法,以哈尔滨市太平桥区域Y型交叉口的实际调查和观测数据为例,选取相应分析方法,依据具体的车道功能划分情况分别计算各进口道的通行能力进而计算Y型交叉口的通行能力,并在此基础上应用服务水平评价指标对该交叉口服务设施的运行现状进行量化,从而为评价信号交叉口的利用效率提供判断依据。

Road capacity analysis provides the guideline of design and basic data for highway planning ＆ design and traffic control ＆ management. The methods of signalized intersection capacity are introduced firstly in this paper. And then according to the investigation and observation data of Taiping Bridge Y-in- tersection in Harbin, the relevant analysis method is adopted, the access way capacity of different direc- tions is separately calculated in the view of the specific distribution of lane function and after that signalized Y-Intersection capacity is done. And on the basis of this, the index of LOS （Level of Service） is applied to quantify the status quo of traffic service facility （Taiping Bridge）, which provides the standard for apprai- sing the efficiency of signalized intersection