虎门二桥互通立交设计创新与实践研究

Design Innovation and Practice Research on Interchange of Humen Bridge II

摘要:

为提高重要过江通道项目的决策、设计、施工和管理水平，更好发挥经济效益和社会效益提供科学依据， 对虎门二桥（现名南沙大桥）互通立交设计创新进行实践研究。通过对观测交通量、车型比例、服务水平和交通事故分布特点进行分析，研究了项目互通立交设计方案、车道衔接、连接部的创新设计。研究表明，作为粤港澳大湾区核心区连接珠江两岸的重要东西向过江通道，项目通车运营6年以来，其交通量远超预测值，事故率（受伤率）中等偏下，互通立交运行平稳有序。部分互通立交设计经验可供特大交通量过江通道参考。

Abstract:

In order to improve the decision-making, design, construction and management level of important cross-river channel projects, and better play the economic and social benefits, the practical research on the design innovation of the interchange of Humen Bridge II (now known as Nansha Bridge) is conducted. Through the analysis of the observed traffic volume, the proportion of vehicle types, the service level and the distribution characteristics of traffic accidents, the innovative design of the interchange scheme, lane connection and connection part of the project is studied. The research shows that as an important east-west cross-river channel connecting both sides of the Pearl River in the core area of the Guangdong - Hong Kong - Macao Greater Bay Area, the traffic volume of the project has far exceeded the predicted value, the accident rate (injury rate) has been low to medium, and the interchange has operated smoothly and orderly since the project was put into operation 6 years ago. Some of the interchange design experience can be used as a reference for the cross-river channel with extremely large traffic volumes.