Design of Counter Beam Tunnel Lights for CIE 88 : 2004 Regulation in Threshold Zone
Joint Authors
Le, Lanh-Thanh
Le, Hien-Thanh
Liao, Hsing-Yuan
Lee, Hsiao-Yi
Chen, Ming-Jui
Tseng, Wei-Hsiung
Lee, Wei-Yang
Chen, Si-Yuan
Chen, Sheng-Yen
Li, Yung-Cheng
Source
International Journal of Optics
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-03-30
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
To enhance driving safety, a counter beam light is proposed to meet CIE (International Commission on Illumination) specifications for tunnel lighting.
The proposed new counter beam light (CBL) acts as a qualified counter beam light to help tunnel road lighting meet the CIE 88 : 2004 regulation standard in the threshold zone in both simulation and in practice.
Through appropriate arrangements of the counter beam light and conventional fluorescent lights on the tunnel ceiling, we demonstrate that road tunnel lighting meeting CIE 88 : 2004 standards can be accomplished.
Based on LiteStar four-dimensional simulation, the source file created through the measurement of the proposed CBL prototype achieved an average road surface brightness of 121 cd/m2, which is greater than the minimum regulation level of 105 cd/m2, a brightness uniformity of 0.88 (minimum regulation level of 0.4), longitudinal brightness uniformity of 0.98 (minimum regulation level of 0.6), a glare factor of 4.41% (maximum level of 15%), and a contrast revealing coefficient of 1.08, which is above the 0.6 minimum level in the threshold zone.
American Psychological Association (APA)
Chen, Ming-Jui& Le, Hien-Thanh& Le, Lanh-Thanh& Tseng, Wei-Hsiung& Lee, Wei-Yang& Chen, Si-Yuan…[et al.]. 2020. Design of Counter Beam Tunnel Lights for CIE 88 : 2004 Regulation in Threshold Zone. International Journal of Optics،Vol. 2020, no. 2020, pp.1-9.
https://search.emarefa.net/detail/BIM-1172964
Modern Language Association (MLA)
Chen, Ming-Jui…[et al.]. Design of Counter Beam Tunnel Lights for CIE 88 : 2004 Regulation in Threshold Zone. International Journal of Optics No. 2020 (2020), pp.1-9.
https://search.emarefa.net/detail/BIM-1172964
American Medical Association (AMA)
Chen, Ming-Jui& Le, Hien-Thanh& Le, Lanh-Thanh& Tseng, Wei-Hsiung& Lee, Wei-Yang& Chen, Si-Yuan…[et al.]. Design of Counter Beam Tunnel Lights for CIE 88 : 2004 Regulation in Threshold Zone. International Journal of Optics. 2020. Vol. 2020, no. 2020, pp.1-9.
https://search.emarefa.net/detail/BIM-1172964
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1172964