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Title: Sample Size Implications of Multi-Day GPS-Enabled Household Travel Surveys
Accession Number: 01618804
Record Type: Monograph
Record URL: Availability: Find a library where document is available Abstract: This report presents a study (1) evaluating whether or not GPS-enabled multiday surveys overcome the survey fatigue challenges faced with multi-day diary surveys, (2) investigating the effects of using multi-day data for developing travel demand models, and (3) providing empirical evidence on the sample size implications of multi-day versus single-day surveys. These questions are explored using data from the 2012 Northeast Ohio Regional Travel Survey, a GPS-enabled household travel survey (HTS) in the Cleveland region. The survey featured a design in which (1) separate GPS-only versus GPS-with-prompted recall samples were collected (allowing for comparison of these approaches) and (2) travel data for the GPS-only sample was collected for 3 to 4 consecutive days (allowing for a multi-day analysis). The data was used to (1) estimate models of key travel choices (e.g., travel demand models) and (2) generate tabular data summaries of those same travel choices. The key travel choices were selected to illustrate the effect of sample size and number of days on different behavioral components and include models of automobile ownership, tour generation, destination choice, and mode choice. Separate estimations and tabulations were generated using separate 1-day, 2-day, and full-sample data files to demonstrate how the results varied among the three.
Report/Paper Numbers: NCHRP Project 08-36/Task 123
Language: English
Authors: Pagination: 34p
Publication Date: 2016-10
Serial: ISBN: 9780309446006
Media Type: Print
Features: Appendices; References; Tables
TRT Terms: Geographic Terms: Subject Areas: Highways; Planning and Forecasting; Public Transportation
Files: TRIS, TRB, ATRI
Created Date: Nov 30 2016 3:22PM
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0000-0001-8133-3381