Significant numbers by Moonley

6,000,000 - population of Beijing

4,700,000 - number of registered vehicles in Beijing

2,000 - number of new vehicles entering Beijing every day

30,000 - number of vehicles purchased by Beijingers in one week in November 2010
550,000 - total number of new vehicles in 2010
700,000 - total number of new vehicles predicted for 2011

24 - average speed in kms of a vehicle travelling in Beijing in 2010

14 - predicted average speed in kms of a vehicle by 2015

50+ - percentage of the planet's cement used in Beijing every year

2nd - rank, with Mexico City, as having the world's worst traffic

13 - number of freeways in Beijing

1 - number of highways in Beijing in 1990

(source - The New York Times, 01-02-11)