China will spend more than 1 trillion yuan ($146 billion) to triple the size of its subway system over the next five years, according to the country’s top economic planning agency.
China will increase the amount of track beneath its cities to more than 3,000 kilometers (1,864 miles) by 2015 from 940 kilometers at the end of 2009
New York City has about 850 miles of subways and major cities like Boston and the San Francisco Bay Area have about 50-60 miles of subways.
Chicago has about 106 miles of subway.
If you liked this article, please give it a quick review on Reddit, or StumbleUpon. Thanks
How to Make Money