A time of day analysis of crashes involving large trucks in urban areas

被引:123
作者
Pahukula, Jasmine [1 ]
Hernandez, Salvador [1 ]
Unnikrishnan, Avinash [2 ]
机构
[1] Oregon State Univ, Sch Civil & Construct Engn, Corvallis, OR 97331 USA
[2] W Virginia Univ, Dept Civil & Environm Engn, Morgantown, WV 26506 USA
关键词
Truck accidents; Injury severity; Mixed logit; Time-of-day; Interstate; Freight; INJURY SEVERITIES; SINGLE-VEHICLE; MODELS; ACCIDENTS;
D O I
10.1016/j.aap.2014.11.021
中图分类号
TB18 [人体工程学];
学科分类号
1201 ;
摘要
Previous studies have looked at different factors that contribute to large truck-involved crashes, however a detailed analysis considering the specific effects of time of day is lacking. Using the Crash Records Information System (CRIS) database in Texas, large truck-involved crashes occurring on urban freeways between 2006 and 2010 were separated into five time periods (i.e., early morning, morning, mid-day, afternoon and evening). A series of log likelihood ratio tests were conducted to validate that five separate random parameters logit models by time of day were warranted. The outcomes of each time of day model show major differences in both the combination of variables included in each model and the magnitude of impact of those variables. These differences show that the different time periods do in fact have different contributing factors to each injury severity further highlighting the importance of examining crashes based on time of day. Traffic flow, light conditions, surface conditions, time of year and percentage of trucks on the road were found as key differences between the time periods. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码:155 / 163
页数:9
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