Which Signs Need to Be Assessed for Retroreflectivity and Which Do Not
June 6, 2025Listed in Highway Safety
Highway departments are responsible for maintaining traffic signs so they remain visible and legible to motorists, day and night. A key part of this responsibility is ensuring that signs maintain adequate retroreflectivity, or the ability to reflect light from vehicle headlights back to drivers at night. But not every sign on the roadside is subject to retroreflectivity assessment requirements. The Manual on Uniform Traffic Control Devices (MUTCD) provides clear guidance on which signs must be m…continue











