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Full-Text Articles in Social and Behavioral Sciences
Analysis Of The Frequency And Severity Of Rear-End Crashes In Work Zones, Yi Qi, Raghavan Srinivasan, Hualiang Teng, Robert Baker
Analysis Of The Frequency And Severity Of Rear-End Crashes In Work Zones, Yi Qi, Raghavan Srinivasan, Hualiang Teng, Robert Baker
Yi Qi
OBJECTIVE: The objective of this study was to identify the factors that influence the frequency and severity of rear-end crashes in work zones because rear-end crashes represent a significant proportion of crashes that occur in work zones. METHODS: Truncated count data models were developed to identify influencing factors on the frequency of rear-end crashes in work zones and ordered probit models were developed to evaluate influencing factors on the severity of rear-end crashes in work zones. RESULTS: Most of the variables identified in this study for these 2 models were significant at the 95 percent level. The statistics for models …
America Moves: Transportation And Public Policy In The United States, Adie Tomer
America Moves: Transportation And Public Policy In The United States, Adie Tomer
Brookings Scholar Lecture Series
The United States is in a perpetual state of motion. Every day, Americans drive over 8 billion miles, board over 20,000 flights, and ship over 45 million tons of freight. But what drives all of this physical movement? And what is the relationship to public policy? This presentation will begin to answer those questions, utilizing a combination of quantitative metrics and policy analysis to explain how, where, and why Americans move. It will outline driving habits, and the disruptive moment every metropolitan area and state faces due to federal gridlock. It will map aviation patterns, and the emerging presence of …