MEXICO CITY, April 5, 2016 (Xinhua) -- People wait in line to board a public bus, in Mexico City, capital of Mexico, on April 5, 2016. Starting Tuesday, Mexico City's authorities implemented a comprehensive "no circulation" policy to keep all privately owned cars off the road one day per week, and one additional Saturday per month. (Xinhua/Alejandro Ayala)
MEXICO CITY, April 5, 2016 (Xinhua) -- People board a free public bus in Mexico City, capital of Mexico on April 5, 2016. Starting Tuesday, Mexico City's authorities implemented a comprehensive "no circulation" policy to keep all privately owned cars off the road one day per week, and one additional Saturday per month. (Xinhua/Alejandro Ayala)