Influence of Color Temperature in Highway Tunnels on Response Time of Driver

In the lighting environments of different color temperatures, people's visual perceptions are different, and the response time for identifying obstacles will also change accordingly, affecting driving safety. Self-designed dual darkroom experimental system, the lighting luminance of the special long tunnel based on the Zhongnanshan Highway is set to 1.6 cd/m2. Eight kinds of color temperatures (2,500, 3,500, 4,500, 5,500, 6,500, 7,500, 8,500, and 9,500 K) were selected to measure the time in which the visual acuity tester judged the direction of the Landolt ring opening. The results show that the color temperature is 2,500 K, the average reaction time is the largest, reaching 1,253.0 ms; the color temperature is 7,500 K, and the average reaction time is the smallest, reaching 941.4 ms. Suggested the color temperature setting of the Zhongnanshan Highway Tunnel.