Communication-Based Train Control System

Background

Before TCT broke through with CBTC independently, the core technologies of China's urban rail transit signaling systems had long been monopolized by foreign firms. This resulted in high costs and poor compatibility; while traditional signaling systems struggled to meet modern operational demands, making the development of advanced train control systems an urgent need.

Relevant policy documents, such as specifications issued by the Ministry of Transport, as well as international standards including IEEE 1474 and IEC 62267, provide guidance for the technological development and operational safety of urban rail transit signaling systems.

Product Features

  • Independent Innovation to Fill Industry Gaps

    By mastering core technologies and fully independent innovation, CBTC moving block technologyincreasesoperational density,and reduces train headways to 90 seconds, significantly enhancing transport capacity.

  • Technological Innovation to Reduce Operational Costs

    The CBTC moving block system eliminates traditional track circuits, andinstead relying only on trackside equipment such as wireless units and balises, which avoids complex cabling along the tracks, and reducesconstructiondifficulty and maintenance costs. Furthermore, bidirectional wireless communication supports real-time train-to-ground data exchange, enhancing system flexibility and scalability, and reserving space for future technological upgrades

  • Flexible Dispatching for Complex Scenarios

    Based on real-time train-to-ground communication, the system supports flexible dispatching of train operations. It allows dynamic adjustment of speed and dwell times, ensuring rapid response to sudden passenger surges or temporary route changes.

  • Algorithm Optimization to Enhance Passenger Experience

    CBTC uses algorithms tooptimize the calculation of train acceleration/deceleration, reduces the frequency of abrupt traction/braking, resulting in a smoother ride; calculates energy-efficient curves to lower power consumption; Combines adaptive precision stopping technology, and enables high-accuracy parking, delivering a more comfortable, energy-efficient, and punctual travel experience for passengers.

  • Modular Integration & Open Ecosystem

    Designed with standardized interfaces, the system supports free combinations of different products and is able to integrate or interoperate with subsystems from othersignaling manufacturers, forming complete CBTC solutions.

Application Examples

Beijing SubwayYizhuang Line:As a demonstration line for domestic signaling technologies, CBTC breaks through foreign technological monopolies and achieves import substitution. Commissioned with optimal standards, it significantly improves passenger comfort, transport efficiency and operational safety.

Nationwide Deployment:CBTC has been successfully deployed across 15 lines in 6 cities nationwide, with a total mileage of 356 kilometers.