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What is Variable Message Signs: Use & Specs about?

Variable message signs (VMS) are used to provide real-time traffic information to drivers. This document outlines specifications for permanent, enhanced, mobile, and vehicle-mounted VMS. It details standards for dimensions, fonts, colors, legibility distances, and placement. Guidelines are provided for different types of messages and their display times. Processes for populating and approving VMS messages are also described. State and local governments must meet approval conditions to operate VMS on state-c

Author

jaffliang

Language

EN