Construction Zone Safety and Delineation Study

摘要

The Construction Zone Delineation study was conducted to find methods for improving delineation in construction zones with long term overnight closures or diversions. The need for improved delineation was established through two means: (1) a committee of traffic, construction, design, research and specifications engineers, and (2) positive guidance, a technique that develops highway information system improvements from the driver's viewpoint. Once the need for improved delineation was established, delineation concepts were developed and tested in actual construction zones and evaluated for effects on traffic performance and driver visibility.