"skippy - really doubt that there is as much bad driving in london than there is bad cycling.
9 out of 10 motorists don't jump red lights."
9 out of 10 cyclists don't jump red lights either, I did 25 miles across London on Monday, from east to west and the overwhelming majority stopped at lights.
There was one guy who used the pedestrian crossing on the side road to navigate the junction. One or two went through a pelican crossing after the pedestrian had gone. There was one junction where there were two reds in succession 30 yards apart with nothing in between and some did jump there as well.
While road users should in theory obey all the rules, car drivers ignore certain ones (overtaking (cyclists) near junctions) entirely and have very scanty regard for others (speed limits, giving way to people crossing roads into which they are turning, etc. etc.), and the pious attitude by motorists that because they mostly wait at red lights (except of course vast numbers run red lights seconds after they have changed - very dangerous), they can then decree that cyclists are dangerous outlaws on the basis of an insanely myopic reading of the Highway Code, disregarding the bits they themselves don't like, is ridiculous.
I wouldn't say that breaking the speed limit is necessarily 'bad driving', it would depend on context. Equally a cyclist jumping a red light is not necessarily 'bad cycling', again, context.
What I would say is that motorists frequently play fast and loose with my life when I'm cycling, and I have no doubt that this is bad driving, especially when I pass them at the next queue 100 yards up the road.
Have I experienced any threats to my life from cyclists while driving? Er, no.