The Effect of Changing Driving Brightness on Older Drivers Jeon, Yong-Wook; Shin, Sung-Heon;
The traffic accidents of the aged are increasing because old people generally experience a decline of physical functions and judgment but their dependence on automobiles increases. In order to investigate the older drivers` response to traffic signs and surrounding environment according to changing driving brightness, this study measured the visual cognitive behavior, driving behavior, and subjective evaluation while the driving brightness was changed using a driving simulator. Furthermore, the drivers who recognized traffic signs and those who did not were compared. As a result, it was found that some older drivers had declined ability of cognition, some failed to adapt to rapid brightness change even if sufficient attention was given to traffic sign, and some could not safely control the vehicle when approaching intersections. Therefore, the development of support systems for aged drivers in traffic environment is necessary in the future.
Dark adaptation;Older driver;Recognition;
Annual report on the aging society of Japan, Version 2009, White paper, Cabinet office, Government of Japan, http://www8.cao.go.jp/kourei/whitepaper/w2009/zenbun/21pdf_index.html.
Jeong, B. Y., Ergonomic product design for older users, Medical Korea, 27-35, 2007.
Minobe, K., Challenge to prevent traffic accident for aged people using a pedestrian environment simulator, The Japanese Journal of Ergonomics, Special publication, 45, 52-53, 2009.
National Police Agency of Japan, Statistics of driver's license in 2008, http://www.npa.go.jp/ toukei/menkyo/ main.htm.
National Police Agency of Japan, Traffic accident situation in 2010, http://www.e-stat.go.jp/SG1/ estat/List.do?lid=000001063623.
Paul Hewitt, Aging in the United States and South Korea: Reexamining the Recommendations of the Commission on Global Aging, Forum of Health and Social Affairs, 92-103, 2009.
Park, J., Park, S. and Oh, H., Effects of illumination and target size on time-to-detect while recovering dark adaption, Journal of the Ergonomics Society of Korea, 28(4), 71-76, 2009.
Lee, Y., Kim, M. and Son, J., Effects of advancing age on driver's cognitive workload, Journal of the Ergonomics Society of Korea, 28(3), 73-79, 2009.