Road Weather Management Program
photos of lightning, trucks plowing snow, an empty road before a storm, and an evacuation
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Best Practices for Road Weather Management

Weather threatens surface transportation nationwide and impacts roadway safety, mobility, and productivity. There is a perception that transportation managers can do little about weather. However, three types of Road Weather Management strategies may be employed in response to environmental threats: Advisory Strategies, Control Strategies, and Treatment Strategies. Advisory strategies provide information on prevailing and predicted conditions to both transportation managers and motorists. Control strategies alter the state of roadway devices to permit or restrict traffic flow and regulate roadway capacity. Treatment strategies supply resources to roadways to minimize or eliminate weather impacts. Many treatment strategies involve coordination of traffic, maintenance, and emergency management agencies. These mitigation strategies are employed in response to various weather threats including fog, high winds, snow, rain, ice, flooding, tornadoes, hurricanes, and avalanches.

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