MSA data: 1990-2000 comparison : Geographic differences in MSA definition. Elaine
Murakami, FHWA and Nandu Srinivasan, CSI
June 3, 2002
MSAs and PMSAs and CMSAs are defined by the Census Bureau for statistical reporting
purposes. For information on definitions, please see
http://www.census.gov/population/www/estimates/metroarea.html
MSAs used in this analysis use June 1999 definition. All the Census 2000 data will use
this geographic definition. For a comparison between the 1990 and 2000 definition, please
see the attached excel file (geography_comparison.xls).
These changes in definitions are why some of the numbers for 1990 differ from those
published in the "Journey to Work Trends" report published by FHWA in 1993.
Average Travel Time to Work
Historically, the New York City metropolitan area has had the longest average travel time
to work. This remains true, with the average travel time of 34.0 minutes.
In 1990, the MSAs with the longest travel times were: New York City (30.0 minutes);
Washington, DC (28.2 minutes), and Chicago (27.9 minutes).
In 2000, the MSAs with the longest travel time after NYC are: Washington, DC (31.7
minutes); Atlanta (31.2 minutes), and Chicago (31.0 minutes). Workers in Atlanta
reported the largest increases since 1990, with an increase of 5.2 minutes.
Means of Transportation to Work
In most of these MSAs, there was a small increase in the proportion of workers driving
alone, and a corresponding decrease in carpooling. Transit shares, in general, showed
slight declines.
The largest increase in the proportion of workers using transit for their journey-to-work
was in the Las Vegas, NV MSA, where the transit share increased from 2.0 percent to 4.1
percent. Considering the very large increase in total population, the number of workers
using transit in the Las Vegas MSA increased from 8,150 to 28,526.
The number of workers using transit in MSAs with increases in the share using transit
include: Boston, MA (from 237,463 to 261,862 workers); Portland, OR (from 41,023 to
63,126 workers); and Seattle, WA (from 91,391 to 119,919 workers).
Vehicle Availability
In general, the proportion of households without any vehicles in declining, and the
proportion of households with 2 vehicles is increasing. However, in the Los Angeles MSA
and the Las Vegas MSA, the proportion of households without vehicles has increased since
1990.
States not included:
The following States are not included in this analysis, even though the states had MSAs
with population greater than one million:
Arkansas
Colorado
Minnesotta
Michigan
Ohio
Utah
We will re-do the spreadsheet as the data for the remaining states are released.
Enjoy!