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.