Abstract
Intersections are high-risk locations on roadways and often experience high incidence of crashes. Better understanding of the factors contributing to crashes and deaths at intersections is crucial. This study analyzed the factors related to crash incidence and crash severity at intersections in San Antonio for crashes from 2013 to 2017 and identified hotspot locations based on crash frequency and crash rates. Binary logistic regression model was considered for the analysis using crash severity as the response variable. Factors found to be significantly associated with the severity of intersection crashes include age of driver, day of the week, month, road alignment, and traffic control system. The crashes occurred predominantly in the highdensity center of the city (downtown area). Overall, the identification of risk factors and their impact on crash severity would be helpful for road safety policymakers to develop proactive mitigation plans to reduce the frequency and severity of intersection crashes.
Highlights
Road intersections are one of the most dangerous locations in a roadway network as they are the convergent spots for vehicles and people moving in opposite paths
A study examining the characteristics of 787,236 motor vehicle intersection crashes from 2005 through 2007, as listed in the dataset from the National Motor Vehicle Crash Causation Survey [4], showed that 96% of intersection crashes had critical factors attributed to drivers and less than 3% had critical factors were related to the vehicle or environment [4]
A total of 73,755 intersection crashes occurred in San Antonio during the study period and a total 145,263 primary persons were related with these crashes
Summary
Road intersections are one of the most dangerous locations in a roadway network as they are the convergent spots for vehicles and people moving in opposite paths. They often impose a major responsibility on road users to make an informed decision on when to cross the road to forestall unsafe situations. As of 2016, Texas has the highest number of fatal crashes in the United States; 3,406 crashes resulting in 3,776 deaths in that year. This is over 5% increase over 2015 figures of 3,226 fatality crashes and 3,582 deaths. There was a 5.09% increase in total miles traveled in 2016 (271.263 billion) compared to 2015 (258.122 billion)
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