advanced vehicle safety system that helps prevent collisions by sending the driver an acoustic or visual signal to warn of the presence of standing or slow-moving obstacles in the car's path, and which also acts on the car's brakes when necessary

implementation of existing systems for detecting driver impairment caused by drowsiness, illness, or drug abuse, and then warning the driver or performing an emergency control function that will stop the vehicle

driving behaviour associated with a large number of rear-end crashes and also with some other types of crashes - and rear-end collisions

user sub-service which supports the dynamic presentation of warning information to drivers and may be generated in response to roadway weather conditions, road surface conditions, traffic conditions, obstacles or animals in the roadway, and any other transient events that can be sense, or that recognise the limitations of a given vehicle for the geometry of the roadway, (e.g. rollover risk for tall vehicles)

route selection function which is performed during the drive in order to provide the driver with a mechanism for recovering once he has left or wandered from the intended route

quality of a remedial measure that succeeds in significantly reducing the expected number of future accidents or casualties