Thales SEC Transport TSTCBTC®2.0 (also deployed on Line 14). It is a unique dual CBTC system that features full redundancy and allows higher level of availability. This is China's first metro line that was deployed with a dual CBTC system. Shanghai Metro line 5 is China's first metro line where operation, renovation and construction were fulfilled at the same time. The project consisted of resignaling and expanding platforms of the existing section and adding a new south extension. To ensure no interruption to normal service, all the resignalling and commissioning was conducted in only a few hours during the night. Both before and after the commissioning, a switchover was made between the old and the new signaling system to ensure normal operation on the next day. After over 500 days, and more than 1,000 switchovers, line 5 had a seamless cutover to the new signalling system with no interruption to normal service at the end of 2018. Rolling stock In 2017, Alstom has modernised 68 metro cars (05C01) in service on the Shanghai metro line 5 and to supplied traction and train control management systems for 198 new metro cars due to circulate on the existing line and its extension for 46 million euros. Alstom had modernised the 68 metro cars that it supplied in 2003 with its Chinese joint venture SATCO (Shanghai Alstom Transport Co. Ltd.). The modernisation will increase the reliability of the cars and adapt them to a new signalling system that will be implemented on the line. Alstom supplied traction systems for 198 new cars that have been ordered for the line and its extension. All traction drives were manufactured by Alstom's joint venture SATEE (Shanghai Alstom Transport Electrical Equipment Co. Ltd.). The designed speed of the train is 80 km/h, the length (Type A carriages are longer at 23 meters) is 19.49 meters (Tc)/19.44 meters (Mp, M), and the width (Type A carriages are wider at 3.0 meters) is 2.6 meters. It is a VVVF AC drive and has a design life of 30 years. Set 05C01 has 4 carriages with 172 seats which could accommodate 1170 people (compared to a six carriage Type A car which can accommodate 1860 people which is 60% higher than a four carriage Type C car). References Shanghai Metro lines Railway lines opened in 2003 2003 establishments in China