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The state and highway maintenace department often have control or prescribed burns or fires on or along the highways to help control and prevent wild fires. As the smoke blows across the highways visibility can be reduced to zero in seconds preventing you from seeing other vehicles on the road which may have stopped. Aslo if the fire is not a control burn there may be Fire Trucks and Firefighters on the highway. So the reason the do not drive through smoke signs are posted is to protect you the driving public, and emergency response personel

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16y ago

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