Heh, my neighborhood doesn't have sidewalks and it's very safe to walk in because _everybody_ walks in the middle of the street. Can be frustrating when you drive through sometimes, but I'm always mindful of the great benefit this has. Everyone in the neighborhood sees and expects people (and kids) "playing in traffic", so traffic is relatively quite calm. I've developed a bit of the view that sidewalks turn neighborhood streets into freeways. I can imagine many scenarios where this system wouldn't work as well, but in a SFH residential neighborhood without much in the way of through traffic, it works pretty well.