Signal retiming projects in several U.S. and Canadian cities contributed to a reduction in crash frequency. RESULTS A synthesis of various traffic signal retiming projects across the U.S. and Canada revealed that there is a reduction in crash frequency. In Lexington, Kentucky traffic signal retiming… Content type Benefit Date Posted 01/19/2007 Taxonomy (ARC-IT) Traffic Signal Control (TM03), Integrated Decision Support and Demand Management (TM09) Geolocation links Lexington, Kentucky, United States