Modeling Crash Risk of Highway Work Zones with Relatively Short Durations

摘要: Abstract 2 Highway work zones greatly affect operational and safety performance of traffic. Existing studies 3 have primarily focused on exploring issues long-term whereas 4 associated with a large number relatively shorter duration are seldom examined.Thus, 5 this paper aims to present an investigation traffic in these short 6 duration. Considering low frequency crashes due tothis type 7 respect its crash condition non-crash conditionrare event” logistic regression model , “ is 8 developed explore the causal relationship between set contributing factors risk. 9 The proposed accoun for imbalance events (crashes) vs. nonts -event (non-crash) 10 conditions modeling occurrence. In addition, uses s actual 11 data reduce bias using aggregated exposure (i.e, averaged volume over day, 12 month, year, etc.). results based case study show that zone length, 13 lane closure positively risk those 14 specific corrections input found 15 improve ion ofdepict 16 comparison area under ROC (Receiver Operating Characteristics) curves different