Using busses/bicycle to get around campus?

TL;DR
I want to mainly use an ebike to get around and perhaps busses

Is biking (e-bike) and using busses a good method to get around at app? I'd like to use a bike in all seasons but wasn't sure if thats a bad idea?

If any of you have used a bike (or busses) on campus and/or in winter let me know how it is and anything I should be know/be aware of.