Peak VMT reportedly occurred in 2007, but that may not stand long according to updated DOT estimates of 2013 travel. According to the data, Americans drove nearly three trillion miles. Another finding is the large increase in number of vehicles.
Mar 1, 2015 U.S. DOT: Office of Public Affairs
Demographic and economic trends, and improving transport options, including more carsharing services, are contributing to a long-term decline in automobile ownership and use.
Feb 5, 2014 The Wall Street Journal