“Imagine a major city without car traffic, without the honking, the congestion, the tailpipes spitting out poison. A city without the ever-present threat of getting run over.”
http://usa.streetsblog.org/2017/10/02/the-joy-and-freedom-of-a-city-without-cars/
“As you browse through these photos from the journee sans voiture, keep in mind that Paris is trying to make its streets free from the burden of car traffic all year round. The car-free day fits within a comprehensive strategy to improve mobility while reducing motorized traffic.”