Chengdu-Lanzhou Railway (also known as Lanlan Railway) is an electrified railway, and the target speed of passenger trains is 200 km/h, which is an intermediate high-speed railway. The building length of the main line is 457.592km, including 301.827km for the double line, 55.765km for the left line and 55.935km for the right line. New bridges 1 12, with a total length of 82.70678 kilometers; 33 new tunnels, with a total length of 332.438 kilometers; New tunnel 14, with total length 10 km; Two new tunnels of more than 20 kilometers were built. The longest tunnel is Ping 'an Tunnel, with a total length of 28.398 kilometers, with a bridge-tunnel ratio of 86.05%.

There are three types of trains running on the Chengdu-Lanzhou railway, namely bullet trains, ordinary trains and trucks. The CRH-2 type motor train will be adopted, which is mainly composed of 8 short-grouped motor trains and 65,438+06 long-grouped motor trains. It will transport 250,000 to 280,000 passengers every year, and the tourist flow will account for more than 60% of the total passenger flow. After the completion of this line, it will connect lanzhou-chongqing railway to the north, and together with the existing baoji-chengdu railway, the planned Lanzhou-Chongqing line, the planned Sichuan-Qinghai line and the Sichuan-Tibet line, it will build an interregional railway trunk channel connecting the northwest with the southwest and the south China coast.

Chengdu-Lanzhou Railway started on February 26th, 20 1 1 and is expected to be completed in February 20th18. Upon completion, it takes only 2 hours to get from Chengdu to Jiuzhaigou County and 4 hours to get to Lanzhou by train.