Solar Road Markers are not to be used as a replacement of Retroflective Raised Pavement Markers (RRPM) but as a new high-tech alerting device. Solar Road Markers can be used on sharp corners, dangerous bends, pedestrian crossings/refuges, concrete traffic islands, median/dividing strips, bike lanes, speed humps, merging lanes, roundabouts, guard rails, narrow bridges ‘KEEP CLEAR