Skip to Search Skip to Left Navigation U.S. Department of Transportation (US DOT) Research and Innovative Technology Administration (RITA) Bureau of Transportation Statistics (BTS)Bureau of Transportation Statistics (BTS) - Research and Innovative Technology Administration (RITA) - United States Department of Transportation (USDOT, US DOT or DOT)
  ABOUT RITA | CONTACT US | PRESS ROOM | CAREERS | SITE MAP
Bureau of Transportation Statistics
Data and Statistics
Bookstore
Programs
About BTS
Upcoming Press Releases
External Links
Intelligent Transportation Systems
National Transportation Library
Research, Development and Technology
Transportation Safety Institute
University Transportation Centers
Volpe National Transportation Systems Center
Printable Version

Table A-15
Vehicle Occupancy Per Vehicle Mile by Time of Day and Weekend Status

Excel | CSV

  Mean SE
All personal vehicle trips 1.63 0.010
Trip start time    
Midnight-1 a.m. 1.47 0.065
1 - 2 a.m. 1.54 0.108
2 -3 a.m. 1.98 0.288
3 - 4 a.m. 1.26 0.109
4 - 5 a.m. 1.54 0.128
5 - 6 a.m. 1.30 0.047
6 - 7 a.m. 1.30 0.030
7 - 8 a.m. 1.33 0.020
8 - 9 a.m. 1.64 0.084
9 - 10 a.m. 1.58 0.043
10 - 11 a.m. 1.74 0.052
11 a.m - 12 p.m. 1.66 0.028
12 - 1 p.m. 1.74 0.033
1 - 2 p.m. 1.69 0.043
2 - 3 p.m. 1.67 0.029
3 - 4 p.m. 1.65 0.025
4 - 5 p.m. 1.64 0.039
5 - 6 p.m. 1.62 0.033
6 - 7 p.m. 1.78 0.032
7 - 8 p.m. 1.86 0.042
8 - 9 p.m. 1.85 0.047
9 - 10 p.m. 1.84 0.057
10 - 11 p.m. 1.64 0.050
11 - 12 a.m. 1.63 0.042
Weekend status    
Weekend 2.00 0.030
Weekday 1.50 0.010

NOTES: More accurately the categories are
Midnight to 00:59 a.m., 1 a.m. to 1:59 am, etc. SE = standard error.

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