基于行驶轨迹的道路平面线形研究之曲线篇  

Study on Horizontal Alignment- Curve of Road Based on Driving Trace

作　　者：张忠桥[1] 王健[1] 

机构地区：[1]无锡市政设计研究院有限公司,江苏无锡214072

出　　处：《城市道桥与防洪》2015年第5期191-192,204,共3页Urban Roads Bridges & Flood Control

摘　　要：道路是车辆通行的载体,道路平面线形拟合车辆行驶轨迹的程度高低,体现了车辆通行条件的优劣。基于车辆的行驶轨迹,考虑人、车、路、环境等因素,探讨了车辆在直线、圆曲线、缓和曲线上行驶时的理论公式,在满足车辆安全、舒适的行驶条件下,测算了最大长直线、圆曲线最小半径及最大半径、最短缓和曲线等数据,为路线规范的修订提供参考;结合标准、规范,理论联系实践,探讨了直线、圆曲线、缓和曲线,有利于设计人员对道路线形设计的理解,有利于设计人员确定特定车辆的通行条件。The road is the carrier of vehicle traffic. The horizontal alignment of road fitting the level of vehicle driving trace reflects the traffic conditions of vehicles. Based on the driving trace of vehicle and considering the factors of people, vehicle, road and environment, the article discusses the theoretical formulas of vehicles driving on the straight line, circular curve and transition curve. On the condition of satisfying the safe and comfortable driving of vehicle, the data of the longest straight line, the minimum and maximum radiuses of circular curve and the shortest transition curve are measured and calculated to provide the reference for the revision of route specification. Combined with the standard and specification, and linking theory with practice,the article discusses the straight line, circular curve and transition curve in order to make for the designers to understand the design of road alignment and to define the traffic condition of the specified vehicles.

关 键 词：行驶轨迹 平面线形 直线 圆曲线 缓和曲线 

分 类 号：U412.34[交通运输工程—道路与铁道工程]