Were they exclusively using Twitter, or offering it as one of many channels so people could choose how to receive info? The former is a terrible idea, the latter is great (until things change).
I frequently drive a sometimes closed section of road with flashing “tune to AM 560 for road info” signs. It would be great if there were “follow DOT on [service]” options.
Doubtful. Canada has emergency alert systems in place over AM and FM radio, over Broadcast TV, and over SMS/cellphone. Those are the systems I'm aware of, but there may be more.
I frequently drive a sometimes closed section of road with flashing “tune to AM 560 for road info” signs. It would be great if there were “follow DOT on [service]” options.