基于控制变量法的城市道路弯道设计因素与车速的关系分析  

Relationship between Design Factors and Vehicle Speed on Urban Road Bends Based on Controlled Variable Method

作　　者：李国伟 LI Guowei(Sinohydro Bureau 6 Co.,Ltd.,Shenyang,Liaoning 110000,China)

机构地区：[1]中国水利水电第六工程局有限公司,辽宁沈阳110000

出　　处：《山西交通科技》2024年第6期20-22,26,共4页Shanxi Science & Technology of Transportation

摘　　要：结合实际道路运营项目,以部分城市道路转弯区域为研究对象,提取运营过程所采集的弯道区域车辆速度数据。采用控制变量法,在固定某个弯道设计因素不变下,分析不同弯道半径、角度和遮挡面积对车辆速度的影响。结果表明:在弯道角度相同的条件下,弯道的半径越大,车辆速度相对越大;在弯道半径相同的条件下,弯道的角度越大,车辆速度越小。基于单因素方差分析,其弯道半径、角度及周边遮挡程度均会对驾驶人产生显著性影响。在城市道路弯道设计规划时,应考虑弯道设计因素对行车安全的影响。Combined with actual road operation projects,based on several turning areas in urban roads,this paper collected data on vehicle speed in these turning areas in the operating process.Using the controlled variable method,under a fixed bend design factor,the effects of different bend radii,angles,and shading areas on the vehicle speed were analyzed.The results showed that,under the same bending angle,the larger the bend radius,the faster the relative vehicle speed;under the same bend radius,the greater the bend angle,the slower the vehicle speed.According to the one-way analysis of variance,the bend radius,angle,and shading degree all significantly affected drivers when turning at the bend.Therefore,the effects of bend design factors on driving safety should be considered in the design and planning of the bend of urban roads.

关 键 词：城市道路 弯道设计 控制变量法 车辆速度 

分 类 号：U412.37[交通运输工程—道路与铁道工程]