Use of Snowplowable Reflective Pavement Markers for Effective Delineation, Final Report

Of the total of 120 markers placed, only five markers were damaged enough to effect their visibility. The raised markers were able to improve the delineation of the lanes at the US 52 installation but were not in a position to improve delineation at the interstate ramp installation. The application of a chip seal greatly reduced the visibility of the raised markers at the US 52 installation. Raised markers are recommended for locations with unusual or unexpected geometry.