this picture is not a riot, but Chinese trying to get on train to go home and have their most important Spring Festival, the only time in a year for many Chinese to reunite with their family.
Now more and more passengers book their ticket on line.
As Spring Festival comes closer, railway tickets have become too hot to get one's hands on. The offcial ticket selling site 12306.cn recorded 1.51 billion clicks in a day.
As the official webpage allows only manual refresh and there are frequent jams, many company provided "ticket snapping plug-in", which automatically refresh the quest until you have it.
The authorities have communicated with internet service providers about such plug-in as they bring considerable pressure on the system. However offical ban on them has yet been issued, not as previously worried.