What is "wtmc"

WTMC (1380 AM) is a traffic advisory radio station, a service of the Delaware Department of Transportation (DelDOT) broadcasting in Wilmington, Delaware. There are signs posted around the Wilmington area advising motorists to tune to this station for any traffic advisories. One such sign exists on U.S. Route 202 upon entry into Delaware from Pennsylvania. The service was started in 2000, when DelDOT purchased the license.

WTMC is licensed as a conventional broadcasting station, not a travelers' information station, although the state has added synchronized repeater stations downstate on 1380 which are HAR/TIS stations, in an effort to extend the station's coverage. The HAR/TIS stations were provided by Information Station Specialists and comprise the largest network of HAR/TIS stations in the country - and the only one whose cardinal location is a former broadcast station (WAMS - 1380). As of 2013, additional synchronized TIS/HAR repeaters are being added to the network.

The 1380 frequency had been used in Wilmington by WAMS, which was founded in 1947 and operated until 1986, much of the time with a Top 40 format.