80% reduce speeds 10-20%, over all compliance moves from 30 to 60%
According to a speed display company that provides electronic speed signs to cities and towns across the U.S. and in Canada, up to 80 percent of speeders will slow down when alerted by a radar sign. Speeds are reduced by 10-20 percent, and overall compliance with the posted speed limit improves by 30-60 percent.
While there are radar speed signs that do not collect data, the majority do. Roughly 75 percent of the company’s customers — including police departments — opt for signs with the data collection feature. “The ones that don’t are generally smaller businesses that are just trying to reduce speed of their employees, where the primary issue is to slow people down”