Abstract
A wide range of driver support system has been proposed and a number of operations for these devices are increased. Besides primary driving task, we used to have various actions, for example, we operate some buttons and look for something. These actions are necessary for driving. In this research, we call such secondary body movements as physical workloads. We investigate effect of the physical workloads on driving performance. The physical workloads are classified by distance to the target from driving position and the operational strategy of reaching the target. In experiment I, we measure a lane keeping ability driving a curve running under the physical workloads using driving simulator. In experiment II, we evaluate the avoidance ability using steering under the physical workloads. Finally, we verify the driver model constructed from course generator and response and the remarkable effect of physical workloads on steering maneuver in emergency.
