Impact of LED Color Temperatures on Perception Luminance in the Interior Zone of a Tunnel considering Fog Transmittance

<table class="table-group" id="tab1"><tr><td><table class="table"><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr class="thead"><td class="align_left">CCT (K)</td><td class="align_left">S/P ratio</td></tr><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td class="align_left">3000</td><td class="align_center">1.2191</td></tr><tr><td class="align_left">3500</td><td class="align_center">1.4902</td></tr><tr><td class="align_left">4000</td><td class="align_center">1.5390</td></tr><tr><td class="align_left">4500</td><td class="align_center">1.7893</td></tr><tr><td class="align_left">5000</td><td class="align_center">1.8174</td></tr><tr><td class="align_left">5700</td><td class="align_center">1.8977</td></tr><tr><td class="align_left">6500</td><td class="align_center">2.0232</td></tr><tr class="table-tr"><td colspan="2"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>The S/<i>P</i> value of seven light sources.</div>

Advances in Civil Engineering

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Table 1

Table 1: Impact of LED Color Temperatures on Perception Luminance in the Interior Zone of a Tunnel considering Fog Transmittance 