Abstract
Recently, head-up displays (HUD) have been widely equipped on vehicles. A HUD projects information on the windshields, so that the drivers can easily obtain information while keeping their eyes on the road. However, their attention may be distracted by objects displayed near their line of sight. In this paper, we examine how the depression angle and the amount of information of the HUD affect the drivers’ response time in detecting approaching objects ahead. The response time was more affected by the amount of information on the HUD than the display’s depression angle.
