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2000-2010: Changes in Transit, Walk and Bike Commute Shares

Journey to Work Trips


Because the ACS is a different survey, compared to the Census 2000 "long form", the results are not exactly comparable. But because trend analysis is important, we have developed these spreadsheets to give transportation planners a handy way to examine trends by including two time points and to look at the differences between Census 2000 results, and the 2006-2010 ACS.

Differences to remember:

  1. The 2006-2010 ACS is the compilation of survey over 60 months, and not a "point in time" like the decennial census.
  2. Because the ACS covers all 12 months of the year, areas with seasonal population shifts, e.g. snowbirds, summer homes, and universities are likely to see the more differences than in other locations and reflect both the change is time, as well as change in survey methods.
  3. ACS 5-year data are approximately one-half the sample size as the Census 2000 long form, therefore the MOE are much larger.
Updated: 11/28/2012
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