The GB Cycling Embassy have submitted their response to the London Assembly investigation into cycling in London
To summarise:
The question of barriers to cycling in the UK is a one which has been asked and answered many times over the past few decades. The main barrier which prevents people from cycling in London is that it is too often an unpleasant, stressful experience. Riding a bicycle in London simply feels far too unsafe for the overwhelming majority of the public to ever wish to do it. To address this, we need to learn from best practice from around the world, with particular focus on the nation with the highest rates of cycling; The Netherlands. London can only make meaningful gains in the numbers of people cycling by providing the safe and convenient infrastructure its current and countless would-be cyclists deserve. London has everything to gain from ensuring that riding a bicycle is safe and inviting for residents, workers and visitors of all ages.
You can read the full response here.