Siemens is to supply the IT and communication technology for Hong Kong's East-West Line. The order, worth around US$39.92 million, from local metro operator MTR Corporation, includes the supply of the station management system, which controls and monitors functions such as emergency call points, traction power supply, tunnel ventilation, overhead line fire detection, passenger information systems and escalators. Hong Kong's East-West Line is being created by connecting the West Rail Line to the Ma On Shan L