Chinese New Year Migration
For Chinese New Year, it is estimated 150 million to 200 million travel back home.
Two videos on the mad rush going back home. After watch the videos, you will know why people cut in line in China. You don't want to be the last one and you want to get a head start first. Many will try to leave early to avoid the mad rush. During CNY most transportation like train, buses, taxis can double in price.
In 2008, there was a big snow storm and cold front that hit China during CNY. It was estimated over 1 million people were stuck in Guangzhou. It looks like the National Guard was called in to help.
http://www.youtube.com/watch?v=0NAeGpx4vi4&feature=related
http://www.youtube.com/watch?v=uwijGdnJWuI&NR=1