2019 Volume 5 Issue 2 Pages A_40-A_47
In proportion to the increase of elderly drivers' driving on expressways, the number of wrong way driving and accidents caused by elderly drivers, increase in recent years. In this situation, many scientists research the traffic safety targeted at elderly drivers on expressway, such as Tada et al. extracted the characteristic patterns of elderly drivers' accidents on expressway, and Sakamoto et al. analyzed the driving behavior of elderly drivers at a toll barrier of expressway main line. NEXCO Central is considering the supporting contents for elderly drivers by expressway managements and devices in cooperation with academics. And in order to extract the differences between elderly and non-elderly drivers in driving characteristics and issues, we surveyed the examinee's driving behavior at a tunnel, a toll barrier, and a merging traffic flow at interchange on actual road, referring to previous studies. As a result, we revealed that some elderly drivers could not smoothly flow in from an accelerating lane at interchange, and that the elderly drivers' visual perception to information signs was insufficient compared with non-elderly drivers.
