Nanjing Metro has awarded a contract to Siemens to equip a rail line with the Trainguard MT automatic train protection system for the Nanjing-GaoChun LuGao section in China.

Siemens will use long-term evolution (LTE) radio technology to transfer mass data in real-time.

The 52km line connects six stations in the Gaochun district in the south.

Once commissioning completes at the end of this year, trains are expected to run at a top speed of 120km/h on this stretch.

Siemens stated that the introduction of the mobile radio standard LTE is the next stage of mobile communication, and offers good performance.

"Once commissioning completes at the end of this year, trains are expected to run at a top speed of 120km/h on this stretch."

The communication transfer technology between train and line for communication-based train control (CBTC), CCTV and passenger information LTE has several advantages such as better data bandwidth.

Five of the exiting lines in operation or in construction in China are already equipped with Siemens rail automation technology.

Siemens previously equipped metro line 1 for Nanjing Metro, which started running in 2005 and is currently 38km-long, as well as metro line 2 in 2010.

Serving 26 stations, line 2 forms the east-west tangent of the city of Nanjing in eastern China. Following the extension of the city's metro with line 2, the rail network presently covers 76km.

The company has also equipped lines 3 and 10 with signalling and control technology.