DAILY TRAVEL TIME VARIABILITY IN THE TWIN CITIES, 1990-2001

Gary Barnes and Stephanie Erickson

No 208032, 47th Annual Transportation Research Forum, New York, New York, March 23-25, 2006 from Transportation Research Forum

Abstract: This paper describes a study of daily personal travel time in the Minneapolis-St. Paul, Minnesota metropolitan area and how and why it changed between 1990 and 2001. This has two major components. The first is the relationship between commute and noncommute travel time. The second is the relationship between mode choice, total daily travel time, and automobile travel time. Both of these are analyzed in terms of how they vary geographically within the region as well as how they changed during the decade. The study is based on the Twin Cities Travel Behavior Inventory (TBI), which included about 10,000 households in 1990 and about 5,000 in 2001. These large samples make it possible to study geographic variations within the region. This is supplemented with information on commute durations from the Census Transportation Planning Package. Average Twin Cities one-way commute durations increased by about two minutes during the 1990s, while total daily travel time increased by about five minutes for workers and two minutes for non-workers. This supports an earlier finding that variations in total daily travel time within the region were primarily due to differences in average commute durations rather than non-work travel. The findings here also support the theory that time spent in non-auto modes reduces the amount of time spent in auto travel, although the reduction is not one-for-one.

Keywords: Research and Development/Tech Change/Emerging Technologies; Research Methods/Statistical Methods (search for similar items in EconPapers)
Pages: 13
Date: 2006-03
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Persistent link: https://EconPapers.repec.org/RePEc:ags:ndtr06:208032

DOI: 10.22004/ag.econ.208032

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