What can I do to solve this minor family-related dispute?

As I mentioned in this question, I recently moved in with one of my relatives (my aunt). Everything has been really great so far except for one thing- it’s a little more out in the suburbs than where I used to live, and my car still needs some repairs before I can drive it. There is a bus here- I’d have to walk a little less than a mile to get on this bus, which I am perfectly willing to do, and after about a 20 minute trip it takes me to the metro. My aunt says that she doesn’t feel it is safe for me to take this bus, for a number of reasons. There is no sidewalk for about five blocks of the walk, so I’d just be walking along the side of the road. The stop itself is just a sign; there’s no bus shelter or anything out there. The safety of the neighborhood itself isn’t a concern, she’s basically worried that I will get hit by a car. My aunt has said that she would much rather drive me around for a few weeks than have me take the bus, but I don’t feel comfortable accepting this offer. I feel like it would be a huge inconvenience to her, and I’m very used to being independent and getting around on my own. I’ve traveled around a lot and lived in a lot of different places- taking necessary precautions to keep myself safe while I’m traveling is basically a second nature. She no longer works, so she says that she can do this any time as long as I give her a little bit of notice, and brushes off my concerns that I will be inconveniencing her. She is really glad to have me living there.

I want to change her mind, because this is the one sticking point in my new living situation. I’m able to plan all of my trips so that I can take this bus during only daylight hours. I really want to bring this up in a well-thought-out and tactful way. I’m very grateful to be living here, and I am grateful for her offer, but I’m afraid she’ll be really stubborn about this because she’s concerned about my safety.

Woah! I just looked this over and thought, tl, dr. Sorry :(