原文传递 Policies for Use of Changeable Message Signs in Highway Work Zones
题名: Policies for Use of Changeable Message Signs in Highway Work Zones
作者: SiiiB Soot and Paul Metaxatos
关键词: portable changeable message signs, warranties and criteria for deployment, highway work zones
摘要: Portable Changeable Message Sign (FCMS) systems used in work zones are programmable supplementary traffic control devices that display messages composed of letters, symbols or both and provide information and instructions to the traveling public approaching work zone activities. The study seeks to develop warranties and criteria for PCMS deployment in Illinois highway work zones. It is recommended that PCMS systems be used during long- and intermediate-term stationary work, for traffic control through incident areas, and in projects where advance-time notification is needed. The discussion focuses on spacing criteria, number of signs required, sign visibility and message legibility, text alignment, distance criteria, message length, duration and type, project-level operational guidelines, message storage and dissemination, repair, maintenance and utility costs, as well as control and coordination issues. The study concludes that additional research is needed in order to: Develop a comprehensive standardized statewide database of messages and message abbreviations develop a comprehensive repository with information about the technology of the various components of the PCMS units; coordinate PCMS units used in highway work zones with a corridor or regional ATMS system; maintain information about the use of a PCMS unit in a work zone project and possibly Integrate it with other relevant information in a management system.
报告类型: 科技报告
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