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When a household has more than one vehicle, the secondary vehicles travel fewer miles than the primary vehicle. In a two-vehicle household, the second vehicle travels less than half of the miles that the primary vehicle travels in a day. In a six-vehicle household, the sixth vehicle travels fewer than five miles a day.

Daily Vehicle Miles of Travel by Houshold Vehicle Ownership, 2009
Graphic showing the average daily vehicle miles driven in households with one, two, three, four, five, and six cars for each vehicle. For more detailed information, see supporting information below.

 

Supporting Information

Daily Vehicle Miles of Travel for Each Vehicle in a Household, 2009 NHTS
No. of
Household
Vehicles
Vehicle
Number
Average Daily
Vehicle Miles
1 1 29.0
 
2 1 43.6
  2 21.4
 
3 1 50.7
  2 28.2
  3 14.0
 
4 1 56.2
  2 33.2
  3 20.3
  4 9.9
 
5 1 57.8
  2 34.0
  3 22.7
  4 14.2
  5 6.3
 
6 1 61.4
  2 38.1
  3 26.3
  4 17.5
  5 10.4
  6 4.4

Source:
2009 National Household Travel Survey

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