The National Transportation Operations Coalition (NTOC) has released its 2012 National Traffic Signal Report Card. The traffic signal report card is the result of a traffic signal self-assessment survey completed by 241 local and state agencies that account for 39 percent of all traffic signals in the U.S. The report card focuses on management, signal operations, signal timing, traffic monitoring and data collection, and maintenance. The 2012 national score of 69, equivalent to a D+ letter grade, is a slight improvement over the 2007 result of 65, equivalent to D letter grade. Improving traffic signals is a cost-effective way to ease congestion on a majority of the roads in cities across the U.S.