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Table A-8
Total Daily Trips and Total Miles Traveled in Daily Trips, in Billions
Excel | CSV
| 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.
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