Headlamp illumination patterns are unique to each vehicle. Characterizing the shape and distribution of light from a vehicle headlamp beam allows us to determine when an object or pedestrian in the path of a vehicle could be detectable by its driver on an unlit roadway.
Gregg R. and Petroskey K. Assessment of Collision Markings on Non-Used Vehicle Restraint Systems. SAE Int. J. Advances & Curr. Prac. in Mobility 2(4):2094-2106, 2020.