We do multiple ones.
Our HQ has the 'official' one and they keep it for things like tweeting links to transportation related issues, news releases, new video content, etc. Only rarely does 'traffic' end up on there, and when it does its' stuff like 'I70 is closed because....' Major stuff.
Each of our 6 districts has its own, and there are even some more beyond that, and it's broken up to info relating to that specific area (for example, the people in Garden City could care less about gridlock in kansas City, so why sub to that feed?
I know there are other feeds for specific things.
In some ways, it might seem like too much, but in another it allows people to sub to info they want or need, and avoid some of the clutter.