Seasonal Variation in Traffic Congestion: A Study of Three U.S. Cities - August 2008

The U.S. Research and Innovative Technology Administration’s Bureau of Transportation Statistics (BTS) has released a Technical Report that explores congestion patterns during a 3-year period in Chicago, Los Angeles, and Houston by estimating the changes in monthly congestion during the year, the differences occurring in morning and evening congestion, and differences in weekend and weekday congestion.