My city has a newsradio AM station that's still doing well and lots of people listen for the traffic reports, but they started simulcasting on FM as well recent

My city has a newsradio AM station that's still doing well and lots of people listen for the traffic reports, but they started simulcasting on FM as well recently to futureproof themselves. The FM signal has far better sound quality of course but thats not really necessary for news reports. But the AM signal can frequently be heard when the FM is completely lost to interference. I dont know of any other big am stations, my car has separate presets per band, so newsradio is permanently on for the AM signal and their FM is frequently on the fm preset.