Beijing with and without cars

Beijing bans 2.5m cars for 2 weeks to achieve blue sky for parade, vanishes immediately after http://t.co/DXTLxud93T pic.twitter.com/3jo1idBzeb

— gabe klein (@gabe_klein) September 4, 2015

Beijing commuters spend more than half their commute time in a traffic jam

The Jakarta Post: "Commuters in Beijing spent on average 32 minutes per hour in traffic jams while travelling during rush hours, said a report released on Tuesday by AutoNavi Software Co, a mobile web-mapping service provider."