The 2012 Urban Mobility Report is the prepared in partnership with INRIX, a leading private sector provider of travel time information for travelers and shippers.
The data behind the 2012 Urban Mobility Report are hundreds of speed data points on almost every mile of major road in urban America for almost every 15-minute period of the average day.
For the congestion analyst, this means 600 million speeds on 875,000 thousand miles across the U.S. – an awesome amount of information.
Click this link to download the entire report.