Abstract
Head- up- Displays (HUDs) have long been used in airplanes; however, it has not yet been verified how the difference in environment would affect their legibility and /or driver visibility if they were to be used in automobiles. Experiments were conducted based on the Double Task Method in which subjects were made to identify both the display and objects in the forward field of vision in a short time period of 0.3 to 0.5 seconds. Results both substantiate the HUDs'high legibility while, at the same time, proving its effectiveness is assuring safe driving from the standpoint of enhanced driver attention to the front view.