市政道路路线设计原则及要点分析

Analysis on the Principle and Key Point of Municipal Road Route Design

为了保证市政道路路线设计质量,文章总结了市政道路路线设计原则,以某城市道路为研究对象,分析了其平面(直线、圆曲线、缓和曲线)、纵断面指标(纵坡、竖曲线)的选择及组合方法。同时,从交通安全、经济、环境影响三个方面建立了路线设计方案综合评价体系,利用综合评价法计算了该道路路线方案等级,研究成果可为类似道路设计提供借鉴。

In order to ensure the quality of municipal road route design,this paper summarizes the principles of municipal road route design.Taking an urban road as the research object,it analyzes the selection and combination methods of its plane(straight line,circular curve,transition curve)and vertical section indicators(longitudinal gradient,vertical curve).At the same time,the comprehensive evaluation system of route design scheme is established from three aspects of traffic safety,economy and environmental impact,and the grade of the road route scheme is calculated by comprehensive evaluation method.The research results can provide reference for similar road design.