Underpasses

Underpass lighting may improve safety in situations where:
  • the roadway beneath the underpass has continuous lighting on both sides of the underpass
  • pedestrian activity is expected along the roadway near or beneath the underpass
  • the geometry of the roadway changes beneath the underpass, for example a narrow shoulder
  • other hazards exist.
If none of these situations exist, adding underpass lighting will not usually significantly improve the safety of the roadway.