Abstract
The purpose of this research is to assess the effectiveness of the Graded Deceleration Display (GDD) that is designed to replace the rear center high mounted stop lamp on automobiles. Licensed drivers were treated in simulation to both a standard brake light displays (binary) and the GDD display while the lead vehicle (LV) varied its deceleration magnitude and ramping behavior. Results entailed that the graded system produced more accurate behavioral responses during deceleration, fewer collisions, and a safer following distance than the binary system. Future research should be concerned with solidifying this framework so that it can be used to improve safety, effectiveness, and efficiency for vehicle transportation. (Author/publisher)