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Dynamic Message Sign Standards Usage by State

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March 2005

This map depicts the use of Dynamic Message Sign (DMS) standards in all 50 states, the District of Columbia and Puerto Rico, as of March 2005. A text listing is also available.

 

Map of United States depicting levels of use of Dynamic Message Sign standards in each State. Click or select for text listing.

DMS Status Legend:

  • Green - Sufficient: The specification reviewed referenced the appropriate NTCIP standards and detailed the requirements sufficiently without redefining any of the NTCIP protocol.
  • Yellow - Not NTCIP: The specification reviewed either does not reference NTCIP standards or it references NTCIP standards but imposes conflicting requirements that cause a fundamental change to the NTCIP protocol.
  • Brown - Ambiguous: The specification reviewed referenced NTCIP standards but the reference is either cursory and does not define many needed details or introduces confusion by restating NTCIP design details.
  • Colorless - No Procurement: No fixed DMS have been procured in the State.

To submit specifications, please send electronically (Microsoft® Word format preferred) to: Tom.Stout@dot.gov.
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