复杂交通条件下的交叉口交通组织优化研究——以镇海区逸夫路-风华路交叉口为例

Research on Optimization of Traffic Organization for Intersections under Complex Traffic Conditions in Zhenhai District

摘要:

为了提升复杂交通条件下交叉口的安全韧性与通行效率，以镇海区逸夫路-风华路交叉口为例，基于交叉口混合交通流的运行特征，系统分析复杂交通环境下对交叉口通行安全与秩序的影响，研究提出以“多车型协调组织、全要素安全管控”为核心的交通组织优化框架，从人非过街空间重构、车道功能动态优化、信号配时精准调节、科技监管网络构建等方面提出优化措施。交通组织优化方案实施后，交叉口平峰时段饱和度由0.41降至0.40，车均延误减少8.7%，行人及非机动车违法率从80%骤降至5%；晚高峰饱和度由0.52降至0.48，排队长度缩短18.6%，各类车辆冲突点减少42%，验证了复杂交通条件下综合优化方案的有效性，为同类交叉口治理提供参考。

Abstract:

To upgrade the safety resilience and traffic efficiency of intersections under complex traffic conditions, taking the Yifu Road - Fenghua Road intersection in Zhenhai District as an example, based on the operational characteristics of mixed traffic flow at the intersection, the impacts on traffic safety and order at the intersection in a complex traffic environment are systematically analyzed. It is proposed that a traffic organization optimization framework is centered on "multi-vehicle type coordinated organization and all-element safety control". The optimization measures are put forward from aspects such as the reconstruction of pedestrian and non-motored vehicle crossing spaces, dynamic optimization of lane functions, precise adjustment of signal timing, and construction of a scientific and technological supervision network. After the implementation of the traffic organization optimization scheme, the saturation during off-peak hours at the intersection decreases from 0.41 to 0.40, the average vehicle delay is reduced by 8.7%, and the violation rate of pedestrians and non-motored vehicles drops sharply from 80% to 5%. During the evening peak, the saturation decreases from 0.52 to 0.48, the queue length is shortened by 18.6%, and the conflict points of various vehicles are reduced by 42%, which verifies the effectiveness of the comprehensive optimization scheme under complex traffic conditions and provides a reference for the governance of similar intersections.