The potential effectiveness of warnings to drivers of the imminent threat of a collision with a red light violator was evaluated in an experiment that used a driving simulator. Three warnings were tested: (1) an infrastructure-based warning that immediately turned the traffic signal red and activated red wig-wag lights, (2) an in-vehicle warning that consisted of a brake pulse, voice annunciation, and activation of a red dashboard light, and (3) simultaneous activation of both of these warnings. In addition to testing three warnings with different groups of drivers, drivers in each group were exposed to one of three traffic conditions: (1) driving with no other vehicles ahead or behind, (2) following closely to another vehicle, or (3) being closely followed by another vehicle.
Effects of In-Vehicle and Infrastructure-Based Collision Warnings at Signalized Intersections
2009
46 pages
Report
No indication
English
Transportation Safety , Road Transportation , Signalized intersections , Collisions , Threat evaluation , Warning systems , Motor vehicle drivers , Traffic safety , Red light warning , Brake response time , Amber change interval , Yellow change interval , Accelerator release time , Vehicle infrastructure integration
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