城市立交设计关键点分析及优化  

Analysis and Optimization of Key Points in Design of Urban Interchange

作　　者：杨晨霞 YANG Chenxia

机构地区：[1]洛阳城市建设勘察设计院有限公司,河南洛阳471000

出　　处：《城市道桥与防洪》2022年第11期5-8,I0004,共5页Urban Roads Bridges & Flood Control

摘　　要：针对城市立交设计条件限制较多、考虑因素较多、相对公路立交更复杂等特点,对城市立交设计要点进行研究。以洛阳市区多座立交设计为例,总结分析了城市立交设计应考虑的限制条件及因素,从交通流量预测、立交选型、辅路及人非系统设计等方面研究了立交设计的关键要点,同时从交通组织优化、线形优化、出入口设计优化三方面研究了立交方案的优化要点。总结认为:城市立交设计应在全面调查、精准预测的基础上合理取舍、不断优化,最终提出技术可行、环境协调、经济合理的最优方案。Aiming at the characteristics of many limited conditions,many considering factors and more complexity than road in the design of urban interchange,the design essentials of urban interchange are studied.Taking the design of several interchanges in the urban area of Luoyang as an example,the limiting conditions and factors considered in the design of urban interchange are summarized and analyzed.The design essentials of interchange is studied from the prediction of traffic flow,selection of interchange type,and the design of auxiliary roads and pedestrian/non-motored vehicle system.At the same time,the optimization essentials of interchange scheme are studied from the optimization of traffic organization,the optimization of line shape and the optimization of access design.The conclusion shows that the design of urban interchange should be reasonably accepted or rejected,and continuously optimized on the basis of complete investigation and accurate prediction.Finally,the optimal scheme with the feasible technology,harmonious environment and reasonable economy is put forward.

关 键 词：城市立交 设计 限制条件 辅路 慢行系统 方案优化 

分 类 号：U412.35[交通运输工程—道路与铁道工程]