Evaluation of Two Strategies for Improving Safety in Highway Work Zones

During 1999, the Departments of Transportation from the states of Kansas, Nebraska, Iowa, and Missouri conducted a pooled-fund study of innovative devices designed to improve the safety and efficiency with which highway maintenance is conducted. In the state of Kansas, a total of nine devices were evaluated. This paper discusses the two devices that showed the greatest potential for improving the safety of highway work zones, a radar-triggered speed display and Lightguard lighted raised pavement markers (RPMs).