United States Department of Transportation
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Guidelines for disseminating road weather advisory & control information.
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2012-06-01
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[PDF-6.97 MB]
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Alternative Title:Guidelines for disseminating road weather advisory and control information
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NTL Classification:NTL-INTELLIGENT TRANSPORTATION SYSTEMS-Road Weather Management;NTL-INTELLIGENT TRANSPORTATION SYSTEMS-Traveler Information;NTL-ENERGY AND ENVIRONMENT-Environment Impacts;NTL-SAFETY AND SECURITY-Highway Safety;
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Abstract:The tremendous growth in the amount of available weather and road condition information—including devices
that gather weather information, models and forecasting tools for predicting weather conditions, and electronic
devices used by travelers—has led the Federal Highway Administration (FHWA) to develop effective and specific
guidelines for communicating road weather information in a way that is consistent with what travelers need, want,
and will use when making travel decisions.
This project, Testing and Evaluation of Preliminary Design Guidelines for Disseminating Road Weather Advisory
& Control Information, builds upon the earlier Human Factors Analysis of Road Weather Advisory and Control
Information project which was initiated to assist transportation officials in communicating both pre-trip and enroute
road weather information effectively, consistently, and timely to meet the needs of travelers for different
weather conditions and travel scenarios. This earlier project resulted in preliminary guidelines.
For the current effort, these preliminary guidelines were disseminated to a broad group of transportation and road
weather officials for review and use. These reviewers included staff from private agencies and State Department of
Transportation (DOT) staff working at Traffic Management Centers (TMCs). Evaluation of the guidelines
followed through end user surveys, on-site interviews and discussions, and application of the preliminary
guidelines to assess their suitability and effectiveness for traffic operations. Valuable feedback provided by these
end users was used to modify the preliminary guidelines and develop the revised guidelines presented here.
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