Pavement Markings Design and Typical Layout Details.

摘要

Highway administrators, engineers, and researchers often face problems for which information already exists, either in documented form or as undocumented experience and practice. This information may be fragmented, scattered, and unevaluated. As a consequence, full knowledge of what has been learned about a problem may not be brought to bear on its solution. Costly research findings may go unused, valuable experience may be overlooked, and due consideration may not be given to recommended practices for solving or alleviating the problem. This synthesis identifies variations in pavement marking designs, practices, and policies, as provided by 48 of 50 state departments of transportation, and transit agencies from the District of Columbia, Puerto Rico and four cities. This information will be valuable to FHWA and the National Committee on Uniform Traffic Control Devices as they consider the need for revisions to the 2008 edition of Part 3 of the Manual on Uniform Traffic Control Devices. In addition, the information will be useful to state and local government agencies as they develop or revise their pavement marking design standards. This synthesis does not specifically address the safety aspects or cost-effectiveness of the pavement marking layout policies and practices of the various agencies. This synthesis report contains information derived from a survey questionnaire distributed to all 50 state transportation agencies, the District of Columbia, Puerto Rico, and four large cities; a literature review; and interviews.