The railway group says it will block calls from phone numbers used to book tickets in abnormally high numbers. It will also delay the returning time of canceled tickets.

Meanwhile, police in Guangzhou City have also cracked three groups making fake IDs for booking tickets.

At Shanghai Railway Station, passengers queued at the ticket office overnight for direct service on popular long-distance lines.

"I'm going to Guangzhou. I came here at 9 last evening."

Station officials suggest passengers turn to joint-trip tickets, which are easier to get.

While in Chengdu, capital of Sichuan Province, ticket sales have fallen slightly as the rush of returning students comes to end.

Chengdu Railway Bureau expects more than 9 million trips within the province during the peak. It will also begin selling name-based tickets from February 14th.