The Impact of LED Colour Rendering on Reaction Time of Human Eyes in Tunnel Interior Zone

<div>(a) The SPDs of eight targets with different colours of targets and backgrounds. (b) The diffuse reflectance of eight targets withdifferent colours.</div>

Advances in Civil Engineering

fig17

Figure 17

Figure 17: The Impact of LED Colour Rendering on Reaction Time of Human Eyes in Tunnel Interior Zone 