Final answer:
The most frequent victims of collisions between vehicles and pedestrians are elderly people. Head injuries caused by falls are most common among young children, adolescents, and the elderly. Automobile and motorcycle accidents are additional causes of head injuries.
Step-by-step explanation:
The most frequent victims of collisions between vehicles and pedestrians are elderly people. According to the Centers for Disease Control and Prevention, head injuries caused by falls are most common among young children, adolescents, and the elderly. In addition, automobile and motorcycle accidents are additional causes of head injuries.