连续流主干路通行能力分析方法探究

Study on Analysis Method of Traffic Capacity for Continuous Flow Arterial Road in North Yanggao Road

摘要:

连续流主干路工程因受周边区域服务要求影响，其出入口间距往往较小，出入口区段的交织交通是影响连续流主干路通行能力的重要因素。在现行规范中，还没有能够完全匹配这种交通特性的通行能力计算方法，因此，准确计算连续流主干路出入口交织区的通行能力，合理控制出入口间距，是连续流主干路设计的重要内容。结合杨高北路（洲海路—金海路）改建工程，对连续流主干路出入口区段的通行能力进行了探析，通过简化交织段通行能力计算，提出了一种关于交织长度与通行能力的简化计算模型，利用该模型对杨高北路（洲海路—金海路）改建工程的建设规模进行了验证。结果表明，该计算模型能较好地模拟交通的实际运行状况，由此计算结果确定的建设规模基本符合工程实际，可用于无法获取交织交通量情况下的连续流交织区通行能力计算。

Abstract:

The continuous flow arterial road project is affected by the service requirements of surrounding areas, and the distance between its entrances and exits is often small. The interwoven traffic in entrance and exit sections is a critical factor affecting the traffic capacity of continuous flow arterial roads. In the current specifications, there is no calculation method for traffic capacity that can fully match this traffic characteristic yet. Therefore, the accurate calculation of the traffic capacity of the interwoven area at the entrances and exits of continuous flow arterial roads and the reasonable control of the distance between entrances and exits are important contents in the design of continuous flow arterial roads. Combined with the North Yanggao Road (Zhouhai Road - Jinhai Road) Reconstruction Project, the traffic capacity of entrance and exit sections in continuous flow arterial roads is analyzed. By simplifying the calculation of traffic capacity in the interwoven section, a simplified computational model correlating interwoven length and traffic capacity is proposed. This model is used to verify the construction scale of the North Yanggao Road (Zhouhai Road - Jinhai Road) Reconstruction Project. The results show that the computational model can simulate the actual traffic operation conditions better. The construction scale determined by these calculations results basically conforms to the actual engineering situation, which can be used to calculate the traffic capacity of continuous flow interwoven areas when the interwoven traffic volume cannot be obtained.