基于低碳理念的城市 T 形互通立交设计

Design of Urban T-shaped Interchanges Based on Low Carbon Concept

摘要:

为全面贯彻低碳理念，建设节能型综合交通运输体系，依托万环西路-南珠大道互通，分析了节能减排理念在城市T形互通中的应用。首先，通过对节点控制因素及交通量预测的分析，形成了4个立交方案；然后对各方案进行油耗指数计算及分析，并结合多因素对各方案进行了综合比选。最后，对项目研究进行了总结：城市互通立交须充分考虑地面辅道交通功能，地面辅道功能如有缺失，可能造成整个互通的油耗指数增大；城市T形交叉节点须保证主线直行交通功能，条件允许时不应与地面辅道及转向交通在同一处合流，易形成交通拥堵点。

Abstract:

In order to fully implement the low-carbon concept and build an energy-saving comprehensive transportation system, relying on the interchange of West Wanhuan Road and Nanzhu Avenue, the application of energy-saving and emission reduction concepts in urban T-shaped interchange is analyzed. Through the analysis of the node control factor and traffic forecast, four interchange schemes are formed, and the fuel consumption index of each scheme is calculated and analyzed. Combined with the multiple factors, each scheme is comprehensively compared and selected. Finally, the project research is summarized. It is necessary to fully consider the traffic function of ground auxiliary roads for urban interchanges. The lack of ground auxiliary road function may lead to an increase in the fuel consumption index of the entire interchange. The urban T-shaped intersection node should ensure the straight traffic function of the main line. And when the conditions permit, it should not merge with ground auxiliary roads and turning traffic at the same place, which will easily form the traffic congestion points.