John the Monkey said:
It can be part of providing a better environment for bikes, but it's only part. In the absence of motorists accepting (rather than tolerating) our presence on the roads, and keeping their own knowledge of traffic law &c up to date, even reading the signs applying to the exemption. This is the sort of thing you bring in once proper enforcement of traffic law (for everyone) and driver education are in place (imo).
Quite. While I don't necessarily think that all motorists are knuckle draggers who resent anyone else being on their patch, a lot of people seem to just get in their cars and turn the key and just trundle off to work and don't necessarily notice/appreciate/respect the changes in road environment they go through. As with a lot of things it's much easier to remember the bad experiences than the good and I think that these encounters will generate a bad experience on all sides. Another one to add to "you all RLJ/ride on the pavement", etc, etc, etc.
I think the comparisons with other European cities, especially Amsterdam, are misleading - most European countries have this strange thing called an integrated transport system which means that all forms of travel are considered when implementing plans (plus I've seen many, many, morons cycling and driving in several cities - it's not just London). In the UK it's a dog's breakfast of plans, often on old routes, which means that you are always having to act to the detriment of one set of road users to "benefit" another set.
Finally, I don't know off-hand all of the roads that are in the trial but I can't imagine riding up Creechurch Lane the wrong way when there's a van/truck parked up delivering or actually heading towards me

. There are some pretty nasty, narrow thoroughfares in the City.