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n5columbian.
provhttp://www.w3.org/ns/prov#
xsdhhttp://www.w3.org/2001/XMLSchema#
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The purpose of the message boards is to alert drivers with details about congestion, traffic emergencies, construction, weather and other driving conditions.But for much of the time, highway message boards remain blank, or show only the breathlessly inconsequential "sign test in progress.
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