I stop at stop signs and red lights. I will only proceed if no one is around and the light doesn't change after waiting a fair amount of time. If the law in California ever changes I guess it would be more convenient to glide through stop signs when no one is around but some cyclists already do it even if they are risking a ticket. I live on a hill and there is a stop sign leading into my cul de sac . I would say 90% of folks (bikes and cars ) run it. I know someday there will be tragedy there. I stop and look as it is steep and folks are moving fast through it. I have stopped at a 4 way stop and when proceeding through the intersection been nearly creamed by a bike coming through from the side and not even slowing down. Like anything else defense is the best offense! Joe