Construction of a Household-level Public Transportation Accessibility Model

urisaThird Place, 2009 URISA Student Paper Competition

Calvin Tribby, University of New Mexico

“This research details the construction of a public transportation accessibility model, with a focus on the necessity of using travel time as the accessibility measure.  The primary objective of this work is to explain how this multi-modal network model was built and to highlight its usefulness through a representative example of its application.  This method is situated in the accessibility measures of transportation equity, a focus of research in the broader field of transportation geography.  The level of detail that current accessibility studies use to evaluate public transit are not detailed enough to capture travel time changes at the household level and through varying time periods throughout the day.  The result of this research is the successful application of this network to highlight the travel time changes at the household level of new transit investments, with implications for a finer level of social justice studies.”