the ASLs are there to protect cyclists from having to queue up the inside of cars
in case some people hadnt noticed theres been a spate of high profile cyclist deaths in london and being on the inside of cars at traffic lights is as dangerous as it gets. And their use has been encouraged and reinforced lately by the mayor and police at major junctions
the car driver was an obvious dick, aggressively entering the ASL is the work of a bad driver, simples. its also 3 points and a fine iirc
ultimately pointless in central london where its only a few hundred metres to the next set of lights and queue of traffic, cycling is the quickest way around town, and thats the cause of a lot of drivers frustration and envy directed at cyclists
however the cyclist didnt need to chase after him and start shouting, a simple one handed gesture wouldve been my response, either the classic w@nk3r or little finger tiny penis one seems to upset the most, maybe go retro and try dickhead? ;-
as for the thug who got out and attacked the cyclist, hes just a scumbag, and I hope he sees a courtroom soon