Category Archives: Transportation Planning

Working with the Philadelphia Region Household Travel Survey

Posted on September 19, 2017 by Erick Guerra

The purpose of this lab is to learn to work with the Philadelphia region 2012 household travel survey. You will learn how to upload data into R, summarize information from the data, combine datasheets, and examine subsets of the data. … Continue reading →

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Exploring US bus ridership with the National Transit Database

Posted on April 5, 2015 by Erick Guerra

I frequently use the National Transit Database for analysis or quick summaries of key information about public transportation in the US. I also have my students use it to perform a back-of-the-envelope cost benefit analysis for a proposed light rail … Continue reading →

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National Transit Database panel by system, mode, and service

Posted on March 11, 2015 by Erick Guerra

This page contains links to a long-formatted panel of the National Transit Database’s TS2.1 – Service Data and Operating Expenses Time-Series by Mode. I maintain the NTD data conventions, so that the column names match the NTD’s data glossary. I … Continue reading →

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