Reflectorized raised pavement markers are high-impact cast iron markers with one or two replaceable lens which reflects light in either one or both directions, depending on the existing traffic pattern. They provide extra guidance for drivers during wet night conditions to enhance present pavement markings. These durable markers are impact resistant, snowplowable and retroreflective. Routine maintenance of the markers and replacement of lens is necessary periodically to ensure that drivers are getting the expected benefits of the markers.