The Beijing-Lhasa train will run at a speed of 160 km per hour on the plain, but will slow down at 120 km per hour when it reaches the Qinghai-Tibet section.

The line includes the Tanggula Pass, at 5,072 m above sea level the world's highest rail track. More than 960 km, or over 80% of the railway, is at an altitude of more than 4,000 m. There are 675 bridges, totaling 159.88 km, and over half the length of the railway is laid on permafrost.

Train T27 from Beijing to Lhasa takes 47 hours 28 minutes, covering 4,064 km (2,500 miles), departs at 21:30 from Beijing West, and arrives in Lhasa at 20:58 on the third day.

It is reported that the useful tips for plateau travel will be printed on the back of the ticket and passengers who want to go to Lhasa should fill in a "health registration card", which should be hand into the trainman when getting onto the train. Besides, no smoking is required on the train.

According to the stipulation of the Ministry of Railways, the Qingzang Railway (Qinghai-Tibet Railway) is not allowed to hold passengers over strength. All the trains to Lhasa require one ticket for one seat/berth. No standing-room-only ticket is on sale.

In addition to Beijing, some other Chinese cities, including Shanghai, Guangzhou and Chengdu, will also launch direct railway passenger transportation to Lhasa as of July 1 2007, Zhang said.