The Impact of Color Rendering on Visual Fatigue in Interior Zone of Tunnel

Judicious use of lamps is profound significance to improve the internal traffic safety tunnels. This study evaluated effect LED color on human visual fatigue under mesopic vision category. According difference eyes’ response different wavelengths light radiation, spectral luminous efficiency curve applied evaluation methods. Taking critical fusion frequency as physiological index, detection experiment was carried out in simulated tunnel environment. The results show that spectrum with high rendering index has a positive alleviating drivers’ fatigue, and more suitable for interior lighting.