I've had one close call running a red light. I had just gotten out of work and zoned out. Had to slam hard on the brakes before I colided with a car. Scared myself and the driver. I didn't give cycling a good name then.

Most of the close calls I have are when drivers run yellow lights. There is an intersection from where I cross over to a walking bridge. Unfortunately drivers usually speed through at about 45mph even though its a 30mph zone. So instead of slowing down at yellow they just cruise through it. However the signal for me to cross is almost instantaneous with their red. Had an SUV swerve into an oncoming turn lane as I started pedalling out (view obstructed by a tree and lamp post). I think there was a cop car sitting in a parking lot behind me. Didn't do anything. I wonder if they are just there for show?