This study extends the previous work of Burkey and Obeng (2004) that examined the impact of red lightcameras on the type and severity of crashes at signalized intersections in Greensboro, NC. The extension takesthe following form. First, we extend the data to cover 57 months, and to include demographics, technologyvariables, the condition of a driver at the time of the crash, vehicle characteristics, land use and visualobstruction. Second, instead of examining the impact of red light cameras, we focus on identifying thedeterminants of crash severity, two-vehicle crashes, and property damage costs. The major findings are that thesafety impacts of seatbelt use outweigh the impacts of airbags deploying because the latter tends to increaseevident injuries and property damage costs, while the former reduces these injuries. We also find that head-oncollisions and under rides increase evident injuries. For two-vehicle crashes, we find that the risk of severeinjuries increases in pickup-pickup crashes and SUV-pickup crashes, while the risk of possible injuriesincreases in car-truck crashes. For property damage costs, we found the condition of the driver at the time ofthe crash (i.e., illness, impaired, medical condition, driver falling asleep, driver apparently normal) to beimportant determinants in increasing these costs. The types of accidents that we found to increase propertydamage costs are running into a fixed object and under rides. Finally, we found that property damage costs ofcrashes are low where the land uses are commercial and institutional suggesting that the accidents that occur inthese areas are minor.
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