Anyone who rides a bike anywhere, let this be a warning to you. Cars passing by on congested streets at high speed might not give you the regulated 1 meter passing space. Cars moving at high velocity push air out of the way and along their sides at high speed. This air can push you down, making for a rather fatal situation at times. KEEP TO THE RIGHT SIDE OF THE DAMN BIKE LANE. For your own safety.
I saw this happen to some guy biking on an expressway this morning. Luckily, he fell to the right, not into the path of a car going 55 mph.