同济大学学报（自然科学版）2018，Vol.46Issue(2)：201-207,7.DOI:10.11908/j.issn.0253-374x.2018.02.009
右转圆曲线处避险车道流出角度与引道长度
Departure Angle and Approach Length of Truck Escape Ramps Locating in Right Turning Circular Curve
摘要
Abstract
UC-win Road 9.0 driving simulation was selected to study the departure angle and approach length of the truck escape ramps locating in the right-turning circular curve.Four indexes,adjusting time,minimum turning radius,steering wheel angle amplitude and frequency,were selected and analyzed by regression analysis on the basis of the data of 16 drivers entering the truck escape ramps.Then the quantitative model of each index with the circular curve radius and the departure angle was established.Through the second order clustering method,the setting range of the departure angle and approach length was narrowed.Finally,with a consideration of the lateral stability of errant vehicle,the design parameters of truck escape ramps were determined.It was recommended to set truck escape tampa at the main line with radius no less than 1 000 m,and the departure angle was 0°～ 5° while the approach length was 6 s the design speed travelling length.With the restricted condition,the truck escape ramps could be set at the horizontal curve radius of 600 m～1 000 m,and the departure angle was 0°～5° while the approach length was 9 s the design speed travelling distance.The departure angle was 5 ° ～ 10 ° and the approach length was 12 s the design speed travelling distance.关键词
道路工程/紧急避险车道/右转圆曲线/引道长度/流出角度Key words
road engineering/truck escape ramp/right turning circular curve/approach length/departure angle分类
交通工程引用本文复制引用
宋灿灿,郭忠印,方勇..右转圆曲线处避险车道流出角度与引道长度[J].同济大学学报（自然科学版）,2018,46(2):201-207,7.基金项目
山西省交通厅科技项目(2014-1-18) （2014-1-18）
