Throw distance
Definition
The horizontal distance from the point of primary vehicle-pedestrian contact to the location where the pedestrian comes to rest. Combined with pedestrian height and surface friction, it is used in the Searle and related equations to back-calculate impact speed.
Related terms
- Conspicuity
- The degree to which a pedestrian or cyclist is detectable against their background under the prevailing lighting conditions. It governs the detection...
- Fender vault
- A variant in which the pedestrian contacts the vehicle's fender rather than the front face, resulting in a lateral throw to one...
- Head wrap distance (HWD)
- The distance along the vehicle's body surface from the primary contact point (usually the bumper) to where the pedestrian's head first contacts...
- Vault impact pattern
- A pedestrian impact sequence typical of high front-end vehicles (SUVs, trucks): the pedestrian is struck in the torso or pelvis, the body...
- Wrap impact pattern
- A pedestrian impact sequence typical of passenger cars and low-profile vehicles: the lower limbs are struck, the body rotates forward and upward...
Explained in
- Pedestrian and Cyclist Collision AnalysisThe horizontal distance from the point of primary vehicle-pedestrian contact to the location where the pedestrian comes to rest. Combined with pedestrian heigh...