| Budget Amount *help |
¥7,400,000 (Direct Cost: ¥7,400,000)
Fiscal Year 2005: ¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 2004: ¥6,000,000 (Direct Cost: ¥6,000,000)
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| Research Abstract |
The research experiment was conducted to solve problems for the color-deficient drivers, who appeals difficulties in distinguishing the red signal from the yellow signal, typically on LED. It is internationally regulated that any signal color must be identified by the 100m distance. Many efforts have been done and many ideas have been tested for that purpose in the past, but no single idea has come to a sufficient conclusion. The hypothetical idea as a "universal-design" concept was invented and tested within the framework of this research ; a red signal light with "X" marked by the specific x-y valued color that the normal cannot see, but the color blinds can see at the distance of 100m. Information will be elegantly reached to those who are needed.
The research investigated that either of the two methods to form a new red signal, which is to say that deigning the "X" by the difference of brightness, and designing that by the combination of colors and the difference of brightness, is effectively useful for the color deficient drivers. The second method was found to be much effective. However, although the existing LED technology permits these red signals with the special color-mounted "X," the market is not big enough at this time to produce the typical LED color. Thus, the economical feasibility should await the public consensus.
The idea of this red signal has been recognized and enthusiastically supported by the Ministry of Police in Japan, who may implement in Japan, the Federal Highway Administration in the Ministry of Transportation, U.S.A., and Swedish Care Institute, Sweden. The research output is planned to be presented at the CIE conference in 2007. It is hoped that the concept developed by the auspices of the national research fund in Japan will be a global standard in the world of traffic signals. Needless to say, the signal will not only benefit the color blinds, but will contribute to the public safety as a whole.
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