To illustrate this relationship, the range required for collision avoidance () is equal to the stopping distance for the host vehicle () minus the stopping distance for the lead vehicle (). This can be expressed in terms of the host vehicle velocity (), the average acceleration of the host vehicle (), the lead vehicle velocity (), the average acceleration of the lead vehicle (), and the response time of the host driver ():
) is equal to the stopping distance for the host vehicle (
) minus the stopping distance for the lead vehicle (
). This can be expressed in terms of the host vehicle velocity (
), the average acceleration of the host vehicle (
), the lead vehicle velocity (
), the average acceleration of the lead vehicle (
), and the response time of the host driver (
):