The one missing ingredient then is enforcement, which is not where it should be in London yet.
Considering the current level of enforcement is somewhere near 'non-existent' it's rather a long way from where it should be.
I haven't seen any suggestion that the Met might change their current policy, which is that 20mph limits are none of their concern.
See above. Some borough forces have. How far it'll go is anyone's guess, but we'll see.
@Oliver Schick started
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Considering the current level of enforcement is somewhere near 'non-existent' it's rather a long way from where it should be.
I haven't seen any suggestion that the Met might change their current policy, which is that 20mph limits are none of their concern.