Maybe a lot of people really don't find "traffic chaos" to be the life
changing event you do? Perhaps a lot of people think "traffic chaos"
once in a while is an acceptable price for having nice things?

I'll reserve judgment until nearer the time when FoI requests should
bring forth impact assessments and contingency plans from the emergency
services, hospitals etc. But it is well-established that, for example,
ambulance delays cost lives. And hospitals are already planning for
staff not being able to get to work, delays in discharging or
moving patients etc. I hope the Mayor's cost-benefit assessment
took account of all that.

(Many people may even think occasional traffic chaos is actually a
good thing for reminding people wedded to their motor vehicles that
there is a world beyond their locked doors, a world that would be
even better if fewer people were wedded to said motor vehicles.)

A general reduction in other road traffic might allow better quality of
life after all the necessary adjustments (including living nearer
work). But we are looking at prospective gridlock, with buses also
disrupted; people taking time off work or children out of school; etc .
--
Robin
reply to address is (meant to be) valid