On-Road Pilot Study On The Need For Integrated Interfaces Of In-Vehicle Driver Support Systems

An on-road experiment has been performed with an equipped vehicle, to study whether the effects on driving behaviour and acceptance of a forward collision warning system and of a lane deviation warning system are different when the systems are isolated or when they are used in parallel. 24 participants were assigned in three experimental and one reference group and were asked to drive the equipped vehicle for 15 consecutive trips on a highway at similar traffic and environmental conditions. The effects of the two isolated systems improve the longitudinal and lateral driving behaviour respectively and are rated as useful and satisfactory, while the use of the systems in parallel does not have a positive effect on driving behaviour. In the latter case the systems are not considered satisfactory and cause frustration to the drivers, thus the need emerges to integrate systems and interfaces.