As a cyclist, driver, and pedestrian in SF this really is a tough city to be in. Drivers frequently stop in bike lanes, run red lights and roll through stop sig

As a cyclist, driver, and pedestrian in SF this really is a tough city to be in. Drivers frequently stop in bike lanes, run red lights and roll through stop signs. I've also had many near misses in bike to bike collisions from other cyclists who don't think they need to stop ever. When I used to Caltrain, I've seen cars turn right without warning forcing me to a stop as often as I've seen cyclists try to overtake a signaling vehicle. When I jog on the embarcadero, road bikes whiz past in either direction despite the bike lanes right off the sidewalk. SF seems to be perpetually in a rush...you need to get around defensively and safely no matter how you are getting around,