ARTBA reported back in June that data from the Federal Highway Administration (FHWA) showed vehicle miles traveled in the U.S. continued to climb, and were on track for a record-setting year, providing Congress yet another reason to enact a robust, multi-year highway and public transit investment bill. The FHWA on July 21 released monthly data for May, showing the nation’s driving has steadily increased for 15 consecutive months, topping an estimated 1.26 trillion miles in the first five months of the year and passing the previous record of 1.23 trillion set in May 2007, the agency said.

The new data, published in FHWA’s “Traffic Volume Trends” report, a monthly estimate of U.S. road travel, shows that 275.1 billion miles were driven in May alone, the most ever in May of any year. FHWA said it “reaffirms calls for increased investment in transportation infrastructure as demand on the nation’s highway system grows.”

The May 2015 report also includes seasonally-adjusted data, which enable vehicle-miles traveled (VMT) comparisons with April or any other month in any year, from the US DOT’s Bureau of Transportation Statistics. The seasonally-adjusted vehicle miles traveled for May 2015 were 262.1 billion miles, a 3.4 percent increase – or 8.7 billion more VMT – compared to the previous May and a .2 percent increase – or 600,000 more miles traveled – compared with last month.

View the data.