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Downstream traffic condition data is transmitted by an enhanced dynamic message sign (OMS with RRS and traffic sensor interface) to the Central System Controller (CSC). The transmitted traffic data is analyzed and compared to preprogrammed scenarios by the CSC, and appropriate condition-response messages are transmitted to upstream OMS’s to advise motorists of downstream traffic conditions. The CSC may additionally provide information to emergency management agencies (Le., police, fire, medical) as well as update highway advisory radio systems (HAR’s) and internet website(s).

* Specifications subject to change for the improvement of the product.

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