U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
September 2018 Traffic Volume Trends
- Travel on all roads and streets changed by -0.8% (-2.1 billion vehicle miles) for September 2018 as compared with September 2017.
- Travel for the month is estimated to be 260.6 billion vehicle miles.
- The seasonally adjusted vehicle miles traveled for September 2018 is 268.5 billion miles, a 0.3% (0.8 billion vehicle miles) increase over September 2017. It also represents -0.3% decline (-0.9 billion vehicle miles) compared with August 2018.
- Cumulative Travel for 2018 changed by 0.3% (6.2 billion vehicle miles).
- The cumulative estimate for the year is 2,415.7 billion vehicle miles of travel.
- Estimated Vehicle-Miles of Travel by Region - September 2018 - (in Billions)
- Change in Traffic as compared to same month last year.
- 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 2016 Table VM-2 as a base.
- Compiled with data on hand as of November 5, 2018.
- Some historical data were revised based on HPMS and amended TVT data as of December 2016.
- 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.
- Travel Trends (September 2018)
- Individual Monthly Motor Vehicle Travel in the U.S. for September 2018
- Changes on Rural Arterial Roads by Region and State
- Changes on Urban Arterial Roads by Region and State
- Changes on All Estimated Roads by Region and State
- Volume Trends - Rural
- Volume Trends - Urban
- Figure 1 - Moving 12-Month Total on All Highways
- Figure 2 - Travel on U.S. Highways By Month
- Figure 3 - Seasonally Adjusted Vehicle Miles Traveled
Page last modified on November 6, 2018