A Study on the Driver Visual Behavior on Highway Tunnel Section

It is very important to analyse drivers' visual behavior because visual information accounts for more than 90 percent of information for driving. There is a research that adjustment factor for a tunnel is 0.95 and for a continuous tunnel is 0.90. The reason is that a vehicle slowed down for visual trouble in the tunnel section of highway. This problem usually happens but there has never been studied of human factor which is operated as causes. Therefore the importance of researches on stable driving, smooth travel and coping with travel safety is increasing day by day. In this regard, this study has an eye to visual aspect among things which influence drives' activity. The object of this study is the Jungbu 4 tunnel on Jungbu highway and the main purpose is to analyse drivers' range and change of visual behavior. we expect to devise a comfortable and safe means in places such as a tunnel which impose much psychological burdens on drivers.