History of WTIR 
The Traveler Information Radio Network, which began broadcasting under the call letters WTIR, is an advertiser-supported public/private business launched by TiRN Broadcasting Inc., an Orlando company that is working with Florida's Department of Transportation. The station began in 1999 airing a 40-minute promotional loop to test the strength of WTIR 's signal, which is broadcast from a studio and transmitter in west Orange County. When it finishes the test period, WTIR will offer frequent weather, traffic and attraction information targeted to Central Florida drivers on Interstate 4, Interstate 95, the Beach Line (Formerly the Bee Line) and Florida's Turnpike. "The concept is pretty simple,'' said Joe Gettys, TiRN's president. WTIR will offer features such as ``I-4 on the 4s,'' an update on traffic that runs every 10 minutes. There also will be features on a variety of tourist spots and roadside restaurants.
Thanks to Chuck Thornton for supplying some history of WTIR. 
TIRN, Traveler Information Radio Network was the brainchild of Joe Gettys. The concept grew out of Gettys' experience as marketing director for Old Town in Kissimmee. Joe had been in charge of an advertising budget of over one million dollars per year, and he became very familiar with the many ways to spend money to reach the millions of travelers coming to central Florida each year. He believed that travelers had a great need for information. At the time, there was no effective way to disseminate that information. Billboards were often extremely expensive and less than practical. Old Town eventually bought its own radio station, and leased 7 billboards alerting travelers where the station could be found on the dial. Gettys came up with a plan that he believed would be a "win-win" situation to provide emergency alerts to Florida travelers in exchange for freeway right-of-way, this would significantly lower the costs of billboards. Dick Kane, the top Public Information Administrator at the Florida Department of Transportation, liked the idea and worked closely with Gettys.

 
WTIR towers thanks to Paul Walker, Jr.