- Lighting is an essential navigational aid and should be used at every roundabout so motorists can safely drive them at night and other periods of low visibility. Partial lighting is better than no lighting.
- In areas where installing a power source is expensive, ecoluminance is a good option. It combines lighting and vegetation to provide visual guidance.
- The following roundabout features must be clearly visible at night: entry and exit points, raised channelization or curbing, pedestrian crossings, bicycle crossings
- Where surrounding areas and intersections are not lit, install transition lighting upstream of the first trajectory change and downstream of the final trajectory change.
- Place lighting fixtures as far from the curb as possible. Do not install lighting in areas where run-off-road crashes are more likely to occur.
- Light pedestrian crossings from the front — not from directly overhead. This increases positive contrast for pedestrians against darker backgrounds. Installing bollards with a light near crosswalk endpoints and along crossing islands illuminates pedestrians directly.
- Never install lighting fixtures where they could be obscured by piled snow during the winter.
CONTACT:
Chris VanDyke
Research Scientist | Program Manager
chrisvandyke@uky.edu
