From www.shanghaiist.com

Since the opening of the western extension to Line 2, Zhongshan Park station has seen more and more passengers crowd its platform. Stationmaster Mr Wang warns casual passengers to avoid the station during the 7am to 9am morning rush hour when up to 800 passengers can be found standing on the platform at a single time, despite the short 3 minute wait between trains. At times, passengers cannot fit onto the train and have to try for the next one. On Monday, the number of passengers that entered Zhongshan Park station during the morning rush hour reached 10,439, or on average almost 3 passengers a second. One commenter suggests that the station's little-used southern entrance be converted back into a connecting corridor for the Line 3 platform to easy foot traffic congestion.

P.S. Here seems to be link to original -- MrZhu can not acess from his current location:

http://ld.eastday.com/l/20070109/u1a239810.html