I don't know... ... 15 miles each way in Georgia? I wouldn't do it. I would ride 15 miles in NYC before I would ride 5 miles anywhere in the South. There is a reason you don't even have bike racks at your high school. I'm only half kidding. Do you know anyone who rides? Please, for the love of all that is Good and Holy, do not just get a bike and head out in traffic! Riding well is an art. It isn't rocket science, but not all of it comes naturally. Can you drive? Have you been taught how to drive? If not you don't have the necessary training to take a bike out in traffic unless you do it with some supervision at first. That I am serious about. Good luck.