Dynamic Speed Feedback Signs on Curves cuts number of single-vehicle crashes nearly in half. Methodology The 7 participating states (Arizona, Florida, Iowa, Ohio, Oregon, Texas, and Washington) found 51 viable sites with an existing speeding problem. Signs were installed at 22 treatment… Content type Benefit Date Posted 12/07/2015 Taxonomy (ARC-IT) Autonomous Vehicle Safety Systems (VS01) Geolocation links Arizona, United States | Florida, United States | Iowa, United States | Ohio, United States | Oregon, United States | Texas, United States | Washington, United States