东南大学学报（自然科学版）2012，Vol.42Issue(2)：374-377,4.DOI:10.3969/j.issn.1001-0505.2012.02.034
普通公路车速分布特性的回归分析
Regression analysis on speed distribution characteristics of ordinary road
摘要
Abstract
The regression models between the average speed, 15th percentile speed, 85th percentile speed and 6 factors, the number of the lanes, the value of the speed limit, the position of the lanes, the vehicle type, the road saturation and the proportion of the large vehicle, are established by the multiple linear regression, respectively. Then, the speed selection model is built by the Logistic regression. The analysis results show that for the two-way six lanes, the minimum speed limit of the passing lane can be controlled according to the 15th percentile speed, and the maximum speed limit can adopt the variable speed limit, the speed limit for different lanes and the speed limit by types of vehicles according to the 85th percentile speed. The large vehicles in the kerb lane often select low speed driving when the saturation is high, while the small vehicles in the two-way two (or four) lanes often select high speed driving when the saturation is low. Different speed limit facilities are set according to the probability of selecting high speed driving. These two regression models can be used to figure out the 15th percentile speed, the 85th percentile speed and the probability of selecting low or high speed driving under specific road conditions, providing a basis in choosing the speed limits and the corresponding facilities for ordinary roads.关键词
普通公路/车速分布特性/多元线性回归/Logistic回归/限速Key words
ordinary road/ speed distribution characteristics/ multiple linear regression/ Logistic regression / speed limit分类
交通工程引用本文复制引用
陆建,孙祥龙,戴越..普通公路车速分布特性的回归分析[J].东南大学学报（自然科学版）,2012,42(2):374-377,4.基金项目
“十一五”国家科技支撑计划资助项目(2007BAK35B02)、江苏省普通高校研究生科研创新计划资助项目(cxzz_0167). （2007BAK35B02）
