As of today morning b(08/26/02), Summary File 3 (SF 3) data for 19 states have been
released (
http://www.census.gov/Press-Release/www/2002/sumfile3.html). SF 3 offers us the
first opportunity to look at commuting data at a detailed level of geography. Some of the
SF 3 tables in which you may be interested are:
Key Tables Summarized at the Block Group Level
P30. Means of transportation to work [16]
P31. Travel time to work [14]
P33. Aggregate travel time to work (in minutes) by travel time to work (4) by means of
transportation to work [2]
P34. Time leaving home to go to work [16]
P35. Private vehicle occupancy [10]
P52. Household income in 1999 [16]
P151a-i. Household income in 1999 [16] by race/Hispanic origin (9)
H44. Tenure [2] by vehicles available [6]
H46. Aggregate number of vehicles available by tenure [2]
Key Tables Summarized at the Census Tract Level
Pct65a-i. Means of transportation to work for workers 16 years and over [16] by
race/Hispanic origin (9)
Hct33. Vehicles available (3) by race/Hispanic origin (9)
For more information on the table specifications for SF3, please visit:
http://www.census.gov/population/www/cen2000/SF3-pop.html, and
http://www.census.gov/population/www/cen2000/SF3-housing.html
Also, Darryl Scott, South Western Regional Planning Agency sent me a zipped file of a
procedure to convert the SF 3 data into an oracle platform. Attached is a zipped file
containing the codes. We will post this information to the FHWA website on Census issues
shortly. Please bookmark at
http://www.fhwa.dot.gov/planning/census/
Thank you!
Nanda Srinivasan