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NEMA TS 4:2005

Hardware standards for dynamic message signs (dms) with ntcip requirements

Provides the user with safe, dependable, functional and easily maintained DMS equipment. The requirements of this standard were developed by industry consensus, taking into account current user needs, available commercial technologies, engineering research, traffic engineering applications, human factors engineering and engineering judgment. The revisable Clause 11.5, Conformance Table Excerpt, is available to assist with developing procurement documents based on this standard.

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NEMA: National Electrical Manufacturers Association [NEMA]


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