This report concerns the specifications of a work zone flagger's vest, for inclusion in the U.S. Manual of Uniform Traffic Control Devices. Related scientific and technical studies were analyzed, current flagging operations were observed and a large number of vest designs were examined under day, dusk, and night viewing conditions. For use during the day, the vest should be constructed of a fluorescent orange material. For night use, white or silver retroreflective tape triming is required. The tape pattern should be recognizable from the front, side and back. To be distinguished as representing a flagger, the tape pattern should outline the flagger's figure. A plan of an acceptable vest is illustrated in the report.

Content Description #Includes bibliographical references and index.

The purpose of this manual is to provide clear and helpful information for maintaining gravel roads. Very little technical help is available to small agencies that are responsible for managing these roads. Gravel road maintenance has traditionally been "more of an art than a science" and very few formal standards exist. This manual contains guidelines to help answer the questions that arise concerning gravel road maintenance such as: What is enough surface crown? What is too much? What causes corrugation? The information is as nontechnical as possible without sacrificing clear guidelines and instructions on how to do the job right.