Transportation Safety Performance of US Bus Transit Agencies and Population Density: A Cross-Sectional Analysis (2008-2014)
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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
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This unpublished presentation is cited as Karaca, Ilker, and Peter T. Savolainen. “Transportation Safety Performance of US Bus Transit Agencies and Population Density: A Cross-Sectional Analysis (2008-2014).” TRB 97th Annual Meeting Proceedings. No. 18-00015. 2018. Posted with permission.