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First dynamic message signs installed on I-65 in north Alabama

Alabama's I-65 will soon feature dynamic message signs as part of a $2.5 million project aiming to improve traffic flow with ...
Billings Gazette

Highways get dynamic signs

GREEN RIVER - The new dynamic message signs the state installed on Interstate 80 in southwest Wyoming blink a short, simple message to motorists. The message just might save your life. Wyoming ...