But Paris already has amazing public transit that is only getting expanded more (line E to Mantes through La Défense, Grand Paris Express, line 14, a bunch of trams, etc.). And the point of the road closures was to make walking and mostly cycling more enjoyable. You can see that it worked, because places like Rivoli, quais de Seine, bd Sébastopol are full with bikes. Making driving more of a pain thus inciting more use of public transit or bikes is just a bonus.