Highway Advisory Radio (HAR) Systems from MH Corbin utilizes common radio frequencies to broadcast messages to motorists. Informing drivers before they encounter delays and add to traffic problems is important for maintaining a safe driving environment. 

And since AM radio is a standard feature in nearly all vehicles, using HAR is a very reliable way to get messages to the motoring public. 

HAR Systems allow DOT and other authorized personnel to notify motorists of traffic conditions, local points of interest, or emergency information, to create a safer commute. HAR Systems can also assist in managing traffic during long-term construction projects.