Before revision: Travelers' information stations (TIS), also called highway advisory radio (HAR) by the United States Department of Transportation, are licensed low-powered non-commercial radio stations , used to broadcast information to the general public, including for motorists regarding travel, destinations of interest, and situations of imminent danger and emergencies.
After revision: A travelers' information station (TIS), also called highway advisory radio (HAR) by the United States Department of Transportation, is a licensed low-powered non-commercial radio station , used to broadcast information to the general public, including for motorists regarding travel, destinations of interest, and situations of imminent danger and emergencies.