I'm in a rural area, and do my walking mostly on back roads, and trails in the woods near my house, so no worries. I do 4-5 miles per day, usually 5 days a week. The music helps the miles go by.
In the last 3 years, I've dropped nearly 60 lbs. and my cholesterol has gone from 245 to 188. It's important for me to have IEMs that not only can produce quality sound, but can stay properly sealed without having to adjust them, and so far the IE 80s seem like they're going to be perfect.