The most famous boulevard in Paris, the Champs-Élysées will not see any vehicles for one Sunday every month. The Agence France-Presse reports that the Paris city government will ban vehicles from the Champs-Élysées the first Sunday of every month. The ban will go into effect on May 8th, not the 1st. The reason it is a week later is May 1st is a national holiday and many workers who will be needed to run the scheme will have the day off.
This is part of Paris Mayor Anne Hidalgo's plan to improve the overall environment in the city. Since she was elected back in 2014, Hidalgo has backed plans to create more pedestrian zones in the city and ban diesel cars by 2020. She also implemented the first "day without cars" last September. Vehicles were banned from some major boulevards in the city. According to Airparif, the agency that monitors air quality for the region said nitrogen oxide levels declined by between 20 and 40 percent during that day. Of course, this is a temporary decrease.