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Table A-8Total Daily Trips and Total Miles Traveled in Daily Trips, in Billions

Wednesday, December 21, 2011

Table A-8
Total Daily Trips and Total Miles Traveled in Daily Trips, in Billions

Excel | CSV

  Total trips* SE Total miles** SE
All person trips 411 1.9 4,012 44.9
Person trips by personal vehicle 356 1.9 3,552 41.3
Vehicle trips 235 1.4 2,298 24.4

* In order to correctly calculate miles per trip, denominators of 403, 350, and 233 billion trips were used for all person trips, personal vehicle person trips, and vehicle trips respectively because not all cases had reported mile values associated with them.

** The total mileage is an undercount as it does not include vehicle mileage from non-daily long distance trips, trips that form part of a job other than commuting e.g. taxi cab driving, and due to nonresponse on trip mileage.

NOTE: SE = standard error.

SOURCE: The 2001 National Household Travel Survey, daily trip file, U.S. Department of Transportation.