I live in Maryville, Tennessee. The speed limit is anywhere from 15 MPH in neighborhoods to 40 MPH in bigger streets. There are sidewalks where MOST people on bikes ride, but I refuse to ride there. Those are for people who are walking their dogs and such. It slows me down and it puts everyone in danger. I have motorists who get aggressive with me. They don't know what to do when they see me, although I see myself as very clear as to what I'm doing. I wish they would treat me just like they treat cars, because I follow the same rules only I go slower.
There is a trail called the greenbelt that goes for 18 miles. It is full of little kids on mountain bikes and people walking their little dogs on 40 foot leashes. It is nearly impossible to ride there, at least with speed. I usually go find trails in other locations. Hmph. Or I deal with motorists.