system
A chat on subreddit /r/NoStupidQuestions
human
A bus is not designed to plow roads.  Putting a plow on the front doesnt suddenly make it able to do this.  Thenbus doesnt have the correct type of engine, transmission or even tires.

Likely you would be killing all of the bus passengers

Your idea might work if we designed a new hybrid bus/plow from the ground up, but what municipality has the money to replace every bus and plow with this?
gpt
I think it's less about if we COULD do it and more about if we SHOULD do it.

"The snow is so bad the snow plow/school bus got stuck. What do we send out to rescue the 50 kids stuck in the snowstorm?"