I'd say the CC is bit of both actually, people stopping using their cars and leaving outside as above, but didn't they already park & ride pre-CC?
But what do you suggest Ajdown to tackle London's fuked up traffic problem, with or without the CC there's still too much traffic right?
I think a lot of the problem is that people seem to commute further and further, instead of working locally, and the few thousand increase in salary that often generates is far less than the actual cost of increased fuel/travel, and an extra hour each end of the day doing that travelling.
Technology exists that would enable a lot of people to work from home, conducting meetings online via webcam/headset or even in virtual worlds.
It'd also benefit companies from requiring smaller premises to work from, reducing costs. The only difficulty with that is what appears to be an apparent lack of trust from employers that you are actually doing your 8 hours a day if your boss can't keep checking on you every 5 minutes.
Another simple option for buses is to increase capacity by changing single deckers to double deckers where practical (the 42, for example, used to be a double and is now just a very overcrowded single) with possible some minor rerouting if there is a problem with a low bridge for example. The 'bendy buses' haven't really helped, turning the capacity of a double decker into the length of two buses instead, and often end up blocking junctions and making it more dangerous for cyclists due to the extended turning arc.
Whilst I am indeed all in favour (through personal circumstances) of making buses more accessible, I rarely see enough disabled people travelling around given the apparent reason for getting rid of the Routemaster in favour of bendy buses. Many of the double deckers I see are perfectly accessible enough for wheelchairs (they're fitted with ramps) that are really no different to bendy buses, only shorter. You've also got a lot of roads that just aren't designed for bendy buses.
What is needed is an
incentive to get people on to public transport by providing a more convenient, more frequent, more comfortable service - rather than simply trying to tax the motorist off of the road. Successive goverments, of both sides, by overtaxing in the wrong places and underinvesting the right places (public transport), have created the problem we have now, and it's going to take quite a while to sort out because they're still unwilling to spend the money necessary and take drastic action like road widening where it may be needed.
It's not gonna happen overnight. But it might.