Aerial photo shows the waiting hall of the Beijing West Railway Station during the 2017 Spring Festival travel rush. (Photo: Chinanews.com)

It is estimated that 410 million passengers will be travelling by trains during the 40-day-period.

To improve the ticket purchasing experience of passengers, a new function will be added to the official train ticket booking website www.12306.cn and 12306 app during the travel rush

Passengers queue to buy train tickets through vending machines. (Photo: Chinanews.com)

The new function will automatically allocate canceled train tickets to other buyers who have paid in advance when tickets have sold out. It will save passengers the trouble of refreshing the website repeatedly to wait for canceled tickets.