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| 1 | An investigation of influential factors of downgrade truck crashes:A logistic regression approach显示文摘Truck crash occurrence causes extensive damage to lives and property. Truck crashes on downgrades exacerbate these costs due to the likelihood of a runaway being involved.Highway agencies have continuously sought engineering measures to reduce the incidence of such crashes. However, most past studies on truck crashes have focused on level roadway sections of highways without considering the effects of downgrades. The difference in geometric characteristics of downgrades and the mechanics of truck operations on such sections mean different factors may be at play in contrast to level roadway sections.This paper investigated the factors influencing truck crashes on downgrades; an attempt to fill in some of the research gaps. An empirical analysis of factors affecting truck crashes on two-lane downgrade roadways in Wyoming was carried out using a binary logistic regression technique. After calibrating the model, the effect of each significant variable was determined using theoretical concepts established in previous studies and engineering intuition. Crash factors including driver gender and age, weather, lighting and road conditions, number of crest curves, crash type, number of driveways, day of week and posted speed limit were found to be significant. The results of the study offer new understandings into how the identified factors influence truck crashes on downgrades. | Milhan Moomen Mahdi Rezapour Khaled Ksaibati | 2019 | Journal of Traffic and Transportation Engineering(English Edition)2019，6，2： | 2 |
| 2 | Predicting injury severity and crash frequency:Insights into the impacts of geometric variables on downgrade crashes in Wyoming显示文摘Road deaths,injuries and property damage places a huge burden on the economy of most nations.Wyoming has one of the highest truck-related fatality rates among the states in the US.The high crash rates observed in the state is as a result of many factors mainly related to the challenging mountainous terrain in the state,which places extra burden on truck drivers in terms of requiring higher levels of alertness and driving skills.The difficult geometry of roads characteristic of mountainous terrain in terms of steep grade lengths adds extra risks of fatalities or injuries occurring as a result of a crash.These risks are more pronounced for truck-related crashes due to their weight and sizes.As part of the measures to reduce the incidence of truck-related crashes on mountainous areas,the Wyoming Department of Transportation(WYDOT)initiated a study to investigate causes of truck crashes on downgrade areas of Wyoming.Several studies have investigated the contributory factors to severe injury crashes but the focus has mostly been on level sections.This study analyzed the contributory geometric factors of truck crashes on downgrades by estimating three crash prediction negative binomial models.These models took into account the injury severity of the crashes.The results indicate that downgrade length,shoulder width,horizontal curve length,number of lanes,number of access points and truck traffic on the highway all impact truck-related crashes and injury frequencies ondowngrades in Wyoming.The results of this study will be helpful to future downgrade road design policy aimed at reducing downgrade truck related crashes. | Milhan Moomen Mahdi Rez apour Mustaffa NRaja Khaled Ksaibati | 2020 | Journal of Traffic and Transportation Engineering(English Edition)2020，7，3： | 2 |
| 3 | Neurochemieal changes and laser Doppler flowmetry in the endothelin-1 rat model for focal cerebral ischemia显示文摘 | Scheller D Moomen J | 2000 | Brain Res2000，887，： | 1 |
| 4 | Transient ischemic attacks: a new definition显示文摘 | Moomen G Delcourt C Elevens I | 2004 | Rev Med Liege2004，59，5： | 1 |
| 5 | Neurochemieal changes and laser Doppler flowmetry in the endothelin-1 rat model for focal cerebral ischemia显示文摘 | Bogaert L Scheller D Moomen J | 2000 | Brain Res2000，887，2： | 1 |
| 6 | Transient ischemic attacks:a new definition显示文摘 | Moomen G Delcourt C Lievens I | 2004 | Rev Med Liege2004，59，： | 1 |
| 7 | Transient ischemic attacks:a new definition显示文摘 | Moomen G Delcourt C Lievens I | | 0，，： | 1 |
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