Communications-based train control (CBTC) is a railway signaling system that makes use of the telecommunications between the train and track equipment for the traffic management and infrastructure control. By means of the CBTC systems, the exact position of a train is known more accurately than with the traditional signaling systems. This results in a more efficient and safe way to manage the railway traffic. Metros (and other railway systems) are able to improve headways while maintaining or even improving safety.
Over the past decades, China major cities such as Beijing, Shanghai, Shenzhen have introduced significant changes to its metro system and technology, with Communication-Based Train Control (CBTC) deemed as a leading technology. It provides the highest levels of operational performance, availability and efficiency.
As one of main metro signalling manufactures and system integrators in China, Beijing Traffic Control Technology Co., Limited (TCT) has started the development of the CBTC system for four years since 2004 with support from Beijing government (to encourage signalling system localisation), including Dual 2 Out Of 2 Safety Computer Platform, 2 Out Of 3 Safety Computer Platform, Zone Controller(ZC), integrated Automatic Train Protection(ATP)/ Automatic Train Operation(ATO) named LCF-300 and Automatic Train Supervision (ATS). The LCF-300 series products are developed against International and European standards. Its safety functions are critical with the highest Safety Integrity Level (SIL4).
The Product Certification scheme provides manufacturers with our endorsement that their systems and products meet the requirements of relevant international standards, giving railways confidence in their purchasing decisions.
The developed CBTC system was first applied in Beijing Yizhuang line which is successfully put into operation on 30th December 2010, this line set a milestone in Chinese metro construction history as its signalling system is purely supplied by local signalling manufacturer. Appointed by Beijing Metro Construction Administration Corp., our ISA team provided System Assurance (SA) and third party Independent Safety Assessment (ISA) services on signalling systems for the Beijing Yi Zhuang Line.
From 2014, Beijing Traffic Control Technology Co Ltd. has commissioned us to provide independent assessment service on LCF-300 ATP Generic Upgrade and Automatic Train Supervision System Upgrade to meet the specific requirement of Beijing Metro Yan Fang Line, which will involve driverless technology and Unmanned Train Operations (UTO) at all stations for the first time in Beijing.
To gain confidence for the first UTO operation in China with all sub-systems developed and supplied by Chinese manufacturers, Beijing Metro have requested us to provide ISA services beyond signalling technology, with the scope extending across rolling stock, track, telecommunications, depot equipment and station facilities such as platform screen doors, elevators, lifts and access controls. If successful, this could lead to more opportunities across China as new lines in Beijing and elsewhere are likely to follow suit.
The lines where TCT signalling systems are applied:
1. Beijing Yizhuang Line (LR Signalling ISA)
2. Beijing Changping Line (LR Signalling ISA)
3. Beijing Metro Line 14 (LR Signalling ISA)
4. Beijing Metro Line 7 (LR Signalling ISA)
5. Beijing Line 16 Signalling ISA (LR Signalling ISA)
6. Chengdu Metro Line 3 (LR Signalling ISA)
7. Changsha Metro Line 1 (LR Signalling ISA)
8. Shenzhen Metro Line 7 (LR Signalling ISA)
9. Tianjin Metro Line 6 (LR Signalling ISA)
10. Shijiazhuang Line 3 (Phase 1) (LR Signalling ISA)
11. Chongqing Line 3 (CCSLR Chongqing JV Signalling ISA)
12. Chongqing Loop line (CCSLR Chongqing JV Signalling ISA)
13. Beijing Metro Yanfang Line (LR Core Systems ISA)
14. Guiyang Line 1
15. Urumqi Line 1