Once again the latest INRIX Gridlock Index (IGI) shows that U.S. traffic is up by almost 10%, a spot of good news for the U.S. economy. Yet some regions are faring better than others: while the Midwest, West and Northeast are booming, traffic in the South is growing at a molasses-slow pace. In fact, drivers in Oklahoma City, Louisville and New Orleans have seen traffic congestion fall by double-digits.

How did your city compare? Check out the complete list of IGI results here.


  • Visit the INRIX Gridlock Index (IGI) for April 2013
  • Visit the INRIX Traffic Scorecard for more detailed gridlock data, including on international regions
  • Visit here to learn more about INRIX