Travel Monitoring and Traffic Volume

September 2011 Traffic Volume Trends

• Travel on all roads and streets changed by -1.5% (-3.7 billion vehicle miles) for September 2011 as compared with September 2010.
• Travel for the month is estimated to be 244.2 billion vehicle miles.
• Cumulative Travel for 2011 changed by -1.3% (-29.8 billion vehicle miles).
• Cumulative estimate for the year is 2,222.5 billion vehicle miles of travel.

• Estimated Vehicle-Miles of Travel by Region – September 2011 – (in Billions)
• Change in Traffic as compared to same month last year.

Note:

• All data for this month are preliminary. Revised values for the previous month are shown in Tables 1 and 2.
• All vehicle-miles of travel computed with 2009 Table VM-2 as a base.
• Compiled with data on hand as of November 10, 2011.
• Some historical data were revised based on HPMS and amended TVT data as of December 2009.
• For information on total licensed drivers in the U.S. visit https://www.fhwa.dot.gov/policy/ohpi/hss/hsspubs.htm. Select the year of interest then Section III (Driver Licensing).
• For information on total registered motor vehicles in the U.S., visit https://www.fhwa.dot.gov/policy/ohpi/hss/hsspubs.htm. Select the year of interest and Section II (Motor Vehicles).

1. Travel Trends (September 2011)
2. Individual Monthly Motor Vehicle Travel in the U.S. for September 2011
3. Changes on Rural Arterial Roads by Region and State
4. Changes on Urban Arterial Roads by Region and State
5. Changes on All Estimated Roads by Region and State
6. Volume Trends – Rural
7. Volume Trends – Urban
8. Figure 1 – Moving 12-Month Total on All Highways
9. Figure 2 – Travel on U.S. Highways By Month