I bought a bike ($100 off for last year's model -- Yay). Anyway, this conversation is interesting and has made me think about how I want to approach my ride to work. I haven't yet biked to work because I want to pick up one more accessory I believe will make me feel safer--a helmet mirror. My neck doesn't turn as far as other people's necks so in order to see behind me well I would have to turn more of my body than I am able to do on a bike and still go straight.
Here, there are few bicyclists, few pedestrians, no bike lanes and 40 mph roads on my way to work. It's a straight 3.5 mile ride, though, on fairly even ground.
On the one hand, there aren't very many driveways on my ride (most houses don't face towards the main road), and this is not a walking town. So sidewalk riding wouldn't be as dangerous as I think it would be if there were more pedestrians and a lot of intersections/driveways.
On the other hand, there is an approximately 0.5 mile stretch of road with no sidewalk at all. It's grass. In this city, sidewalks aren't built unless there's a building it would front. No building, no sidewalk. Terrible city planning. Anyway, I google mapped the route and there is a clear path people have made who walk or bike on that grassy area. It actually looks more like a man-made but unintentional bike path. I've seen bikes on it.
In fact, I've seen people here biking on sidewalks far more than on the street. In the city's pedestrian/bicycle plan for 2010-2030, which I found online, there are a bunch of pictures of people biking on the sidewalk.
I have seen people biking on the street--rarely, but I've seen it. They are usually decked out in bike gear which makes me think they are more experienced riders. There's also a real, recreational bike path near my house that isn't useful for me to get to work, but is used quite a bit by experienced riders on the weekends. I think most of the bicyclists I see that look experienced are heading to that bike path (there are very, very few bike paths in the city).
That said, I still haven't decided what to do, and may have to take a test run after I get my helmet mirror to see how it goes.
As for the left turns I talked about earlier in the thread--I believe I've figured out the scariest one. There is an intersection at a corner up ahead. It's not a great intersection because it leads to the freeway and so there are a lot of big trucks, but there is a crosswalk that I can walk my bike across to get to the other side of the street.