Investigation of a series of representative experimental collisions between automobiles and two-wheeled vehicles with specific analysis of severity of head impacts.

The typology of the two-wheeled-vehicle riders head impacts against the front parts of cars emerged as being not basically different from that of the pedestrians head impacts, and any improvements in this car surface area aiming at pedestrian protection would probably be satisfactory for the protection of two-wheeled vehicle riders. Solutions should be considered in terms of costs versus effectiveness.