Travel on all roads and streets changed by 3.9% (10.2 billion vehicle miles) for April 2015 as compared with April 2014.The following graph shows the rolling 12 month total vehicle miles driven to remove the seasonal factors.
Travel for the month is estimated to be 267.9 billion vehicle miles.
The seasonally adjusted vehicle miles traveled for April 2015 is 262.4 billion miles, a 3.7% (9.5 billion vehicle miles) increase over April 2014.
The rolling 12 month total is moving up, after moving sideways for several years.
In the early '80s, miles driven (rolling 12 months) stayed below the previous peak for 39 months.
Miles driven (rolling 12) had been below the previous peak for 85 months - an all time record - before reaching a new high for miles driven in January.
The second graph shows the year-over-year change from the same month in the previous year.
Gasoline prices aren't the only factor - demographics is also key. However, with lower gasoline prices, miles driven - on a rolling 12 month basis - is at a new high.