Toyota's higher speed Collision Avoidance Assist System

System is said to be effective in more than 90 percent of rear-end collision speed ranges A Pre-collision System (PCS) is effective in helping mitigate even high-speed collisions. Toyota has developed a Pre-collision System (PCS) with collision avoidance assist that is effective in helping mitigate even high-speed collisions. Their study of US accident data has found that that a speed of between just 24 to 36 mph at the time of a rear-end collision is the range in which the number of fatal and injury-causing accidents increases dramatically.