Number of images - 5
Tables and charts - 11
The Relationship between Maintenance Factor and Lighting Level in Tunnel Lighting. L&E 27 (3) 2019

Light & Engineering 27 (3)

Volume 27
Date of publication 08/06/2019
Pages 75-84

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The Relationship between Maintenance Factor and Lighting Level in Tunnel Lighting. L&E 27 (3) 2019
Articles authors:
Mehmet Sait Cengiz

Mehmet Sait Cengiz, Ph.D. He works in the field of applied lighting technologies and architectural lighting

Performance decreases in lighting equipment with a high level of contamination have been analysed in this study. Effect of decreases in luminous flux arising from abrasions and usage on tunnel illumination levels has been analysed and results of measurements in real environment and simulation environment have been compared. Calculations, which are complicated and difficult by traditional methods, have been visualized by a simulation program prepared in the computer environment. Results recorded at 60 points by measuring by a luxmeter, which was placed in the middle of 2.266 m2 fields on the road surface into the tunnel, have been compared with simulation results. Thanks to the simulation program used, tunnel lighting measurements would not be necessary, which they take a long time in the physical environment by measurement devices and are carried out by stopping vehicle traffic. Tunnel lighting maintenances, which are complicated and take a long time, will be carried out in a short time and more accurately, and waste of resources could be prevented. It has been determined in the study that more accurate results could be obtained in ergonomic, economic, and using aspects.
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