Long, monotonous stretches of road can cause drivers to become tired and inattentive. On occasion, this can make them unintentionally drift over the lane markings. Things get particularly dangerous when unprotected, steep embankments or verges line the edge of the road. If the driver starts to drift away from the drivable road surface and fails to react promptly, the emergency lane keeping actively steers the vehicle back into the correct lane.
of the accidents caused by heavy commercial vehicles* resulting in injuries can be prevented by lane assistance systems.
*with a permissible gross weight of over 12 tons; Bosch Accident Research, 2016
even in critical situations because the vehicle is actively prevented from drifting off the road