Practice question
What unique lighting challenge does tunnel lighting present?
- Tunnels require no lighting
- The extreme contrast between bright daylight outside and the dark tunnel interior requires a transition zone with very high illumination at the entrance that gradually reduces deeper into the tunnel
- Tunnel lighting is identical to roadway lighting
- Tunnels only need emergency lighting
Answer: B — The extreme contrast between bright daylight outside and the dark tunnel interior requires a transition zone with very high illumination at the entrance that gradually reduces deeper into the tunnel
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