Required luminous intensity ratio of led road traffic signal lights.?testfor finding the luminous intensity ratio that ensures the same visibilityperformance of red, yellow, and green roundel lights.

Author(s)
Ando, M. Seto, M. & Hosono, S.
Year
Abstract

The minimum luminous intensity values of traffic signal lights are provided as recommended values in the report of the commission internationale del'eclairage (international commission on illumination) (cie). japanese standards are based on these recommended values of cie. on the other hand, the luminous intensity ratio of the red, yellow, and green roundel lights is not yet made clear by cie. Therefore, a test was carried out to determine the luminous intensity ratio that ensures that all of the red, yellow, and green roundel lights of an led road traffic signal light provide the same visibility performance.

Request publication

3 + 13 =
Solve this simple math problem and enter the result. E.g. for 1+3, enter 4.

Publication

Library number
C 41416 (In: C 40997 CD-ROM) /73 / ITRD E136246
Source

In: Proceedings of the 13th World Congress and Exhibition on Intelligent Transport Systems (ITS) and Services, London, United Kingdom, 8-12 October 2006, 10 p.

Our collection

This publication is one of our other publications, and part of our extensive collection of road safety literature, that also includes the SWOV publications.