Proceedings of Annual Conference of The Illuminating Engineering Institute of Japan
Proceedings of 2003 Annual Conference of The Illuminating Engineering Institute of Japan
Session ID : 46
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Host: The Illuminating Engineering Institute of japan

Acritical object for expressway lighting design
*Kunio Toeda, Tsuyoshi Sugawara, Keiki Kaga, Kazuyuki Ooya, Tatsurou Yoshimochi
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Abstract
In addition to the research in last year,we researched obstacles dropped inthe Toumei and Tohoku motorway in the same way as we did in last year.We foundout that revealing power of 20% reflection obstacles was about 65% as a result of this research.This revealing power curve is based on the reserch,which is held in several places and seasons,so that it can be a very useful basic data of road lighting design.
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© 2003 The Illuminating Engineering Institute of Japan
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