The Route NO.11 is known by the reputation as the most beautiful subgrade railway which is running on 28th June,This entire subgrade railway line is 51.9 kilometers which starts from the east at the Futian traffic hub,connects directly with the Shenzhen Airport,then stretches west to Songgng Bitou Station which is located between the borders of the Shenzhen and Dongguan.This railway is the first subgrade railway route that achieved full complete as a one-time construction project.It serves the purpose as the express transport method for Shenzhen's western region mass haul in China and a direct connection to the Airport.
Some people said that this subgrade railway line is like a "Aristocrat",I think it's true,I will give u some examples:

Firstly: It is the quickest railway in China

The average speed of the subgrade railway line is about 120 kilometers per hour.It's so quick that the average speed can reach 140 kilometers per hours from Futian to the Airport and it can completely exceed the regular subgrade railway line.It's taken for the quickest and the biggest marshallings which only need 29 minutes from the center of the Futian to the Airport terminal building.

Secondly: It can take more passengers