UPDATE: Okay, apparently it’s just 500km in total. Not 500km extra. That’s 80km of subway tracks built in the next year. Everyone in the city knew that the Shanghai government wasn’t going to stop adding tracks to the subway system now that the Expo is over, but it’s kind of awe-inspiring to see what those track plans entail: 500 kilometers by 2012 – more than doubling what they have now (which at 420km of track is already the longest in the world). Awesome!