March 2015 Traffic Volume Trends

• Travel on all roads and streets changed by 3.9% (9.8 billion vehicle miles) for March 2015 as compared with March 2014.
• Travel for the month is estimated to be 261.7 billion vehicle miles.
• The seasonally adjusted vehicle miles traveled for March 2015 is 258.9 billion miles, a 3.4% (8.5 billion vehicle miles) increase over March 2014. It also represents a 1.8% change (4.7 billion vehicle miles) compared with February 2015.
• Cumulative Travel for 2015 changed by 3.9% (26.9 billion vehicle miles).
• The cumulative estimate for the year is 720.1 billion vehicle miles of travel.

• Estimated Vehicle-Miles of Travel by Region - March 2015 - (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 Highway Statistics 2013 Table VM-2 as a base.
• Compiled with data on hand as of May 11, 2015.
• Some historical data were revised based on HPMS and amended TVT data as of December 2013.
• 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).
• Seasonally adjusted vehicle miles traveled removes seasonal changes allowing month-to-month, year-to-year trend comparisons.

1. Travel Trends (March 2015)
2. Individual Monthly Motor Vehicle Travel in the U.S. for March 2015
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
10. Figure 3 – Seasonally Adjusted Vehicle Miles Traveled