latestagetest
The idea is to make the street accessible for all, so everyone can walk around easily everywhere. The bike lanes are there, so that even elderly and kids feel safe to cycle.
Also Paris being gridlocked has been the case since forever.
That means public transport is working, Paris is one of the few big mature cities that invests heavily in new lines. (Not all of them make sense, but I guess that's politics)
Cars create traffic. Paris has been basically one traffic jam since 50 years, congestion pricing is what's needed, which she sadly is not pushing for, but which would create an even crazier absurd outcry than the closing of the berges (if that's possible).
The Paris Police Prefecture is under the Ministry of Interior, there slowly rolling out a much needed municipal police force.
Automatic enforcement of vehicle vignettes is not allowed yet, but will, from my understanding, be changed with the new mobility law.
Have you been to a country without working infrastructure and state with little power?
One of the problems is investing so much in public housing that could be used in better ways. So the debt of Paris has been rising quite sharply. At least the region (Ile de France) is actually building lots of housing compared to other big cities.