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Transportation Safety Performance Of Us Bus Transit Agencies And Population Density: A Cross-Sectional Analysis (2008-2014), Ilker Karaca, Peter T. Savolainen
Transportation Safety Performance Of Us Bus Transit Agencies And Population Density: A Cross-Sectional Analysis (2008-2014), Ilker Karaca, Peter T. Savolainen
Ilker Karaca
The paper examines the transportation safety performance of transit agencies providing public bus service in the US by using data from the National Transit Database (NTD)
Uses NTD data for a seven-year period from 2008 to 2014 • 3,853 observations for 651 public transportation agencies in 50 states
Seven types of bus transit fatalities and injuries (including passengers, operators, pedestrians, bicyclists)
Main explanatory variable: urban density obtained from the US Census figures
Other explanatory variables: total agency revenue miles, unlinked passenger trips, agency fleet size, and urban population