China has the potential to revolutionize mass transit -- it already has plans for building new metros, highways, and high-speed trains in its top 170 cities. In fact, Beijing has already begun investing heavily in this sector; between 2004 and 2006 alone, spending on urban transportation increased almost 50 percent. New Delhi's spending on transportation infrastructure, however, needs to pick up urgently. At its current rate of metro and road construction, India is headed for gridlock on a massive scale. The country needs to build 350 to 400 kilometers of metro rail every year to keep up with its current standards -- but that’s more than 20 times the capacity that has been built in the past decade.