Terms of Reference for the DPPS informal working group
Reference Number: IWG-DPPS-01-03
Scope of work, objectives, and procedures for the work on amendments to GTR 9 and UN R127 to introduce provisions for deployable pedestrian protection systems.
Head Impact Time: The calculated time elapsed from the first contact between the vehicle and the pedestrian (typically bumper-to-leg contact) to the moment the pedestrian’s head strikes the vehicle (the hood/bonnet or windscreen area).