Abstract
In this study, the effect of luminaire angle on the path parameters of tunnel lighting was investigated. Tunnel illumination was performed with a simulation program adapted to CIE 88-2004 standards. The lighting performance parameters were compared while the angle of the luminaire was 0°, 5°, 10° and 15°. According to the simulation results, the luminaire angle is 0 degrees and the highest efficiency is reached. As the luminaire angle increased, the yield decreased in direct proportion to the angle. The highest lighting efficiency was observed at 0 degrees and the lowest illumination efficiency was observed at 15 degrees. This problem can be overcome by using a higher power lamp in angled lighting. As a result, it is revealed that angled lighting should be avoided in highway and tunnel lighting.
Highlights
TUNNELS ARE underground road structures which are alternative to highways and railways
Tunnel lighting is examined by classifying different luminance zones in order to ensure adaptation and provide economic solutions
The luminance level of a point on the road surface is equal to the sum of the light levels that come to a point [6, 14, 15]
Summary
TUNNELS ARE underground road structures which are alternative to highways and railways. They are used to facilitate traffic flow. If the tunnel lighting does not illuminate as much as necessary, a driver approaching the tunnel experiences a black hole effect. Intensive lighting is not required in the interior of the tunnel [1,2,3]. For the most appropriate tunnel illumination that provides economic but necessary vision conditions, the brightness level in the tunnel interior should be determined correctly. In the severity of crimes committed, it was seen that there was a 40% decrease [8,9,10]
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