The Guardian:

The Greater Tokyo Metropolitan Area, composed of four prefectures, became the world’s pre-eminent megalopolis – some 35 million people by 2010, or 27% of Japan’s total population. It isn’t unusual for commuters to spend two hours getting to work every day on trains that exceed 150% of capacity.

When I was in Tokyo, one of the things I wanted to see and take pictures of was the Shinkansen bullet train. It’s a shame we don’t have the population densities to make these trains possible here in North America.