Kimley-Horn was retained by the St. Lucie TPO to conduct Spot Speed Studies to evaluate speed limits and travel speeds for three (3) arterial roads within St. Lucie County. According to the National Highway Traffic Safety Administration (NHTSA), one of the top reasons for traffic crashes and fatalities is driving too fast for the roadway conditions. In 2021, the St. Lucie TPO staff conducted a Speed Kills Analysis to examine the link between vehicle speed and crash severity and identify high crash locations within the TPO area. The Speed Kills Analysis identified that 75 percent of all fatal crashes in the TPO area occur on roadways with posted speeds of 40 miles per hour (MPH) or higher. The Speed Kills Analysis identified high crash locations on the roadway network where the posted speeds are 40 MPH or higher.
