Abstract
The problem of safely carrying traffic through construction and maintenance zones is becoming increasingly more complex. The contractor must coordinate his activities to maintain normal traffic flow and provide positive guidance so that accident potential situations are kept to a minimum. Raised reflective pavement markers provide excellent wet weather and night time reflection and appear to be an effective means of maintaining safe traffic flow. This study evaluates the use of raised reflective pavement markers as an a means of providing improved delineation through construction zones.