Preface

Recently, the China Association of Metros (CAM) announced the winners of the "2025 Urban Rail Transit Science and Technology Progress Award." Traffic Control Technology's project, "Key Technologies and Applications for Cross-Line Operation Renovation of Existing Urban Rail Transit Lines," won the First Prize for its outstanding technological innovation and remarkable application results. This marks an important technological breakthrough for China in the field of network-based, interconnected renovation of existing urban rail transit lines.

As a large number of domestic urban rail transit lines enter major overhaul and renewal cycles, problems such as incompatible signaling systems of multiple standards on existing lines, difficulty in interconnecting heterogeneous equipment, construction affecting operations, and the difficulty of realizing cross-line operation have become increasingly prominent. In response to these common industry pain points, Traffic Control Technology, together with Beijing Subway Operation Co., Ltd. and relevant industry units, carried out systematic technical research and ultimately formed a complete set of deployable and replicable cross-line operation renovation technology systems.

? For the first time, designed a train control system architecture featuring vertical compatibility and horizontal interconnection;

? Developed a complete set of highly secure interoperable train control equipment with dynamic adaptation and compatibility with multiple standards;

? Overcame three key technologies: compatibility of heterogeneous signaling systems, multi-line coordinated dispatching, and safety protection for non-cross-line trains.

The biggest highlight of the entire technology system is the realization of "seamless switching between different signaling systems," which not only ensures cross-line operation efficiency but also minimizes the impact on the daily operation of existing lines.

At present, the company's accumulated "seamless renovation" technological achievements for existing lines have been implemented on Beijing Subway Line 5 and have received high recognition from the operator. On this basis, the results have been maturely promoted and applied to key projects such as the Beijing Subway Line 13 capacity expansion and improvement project and the overall signal system renewal and renovation project of Beijing Subway Line 10, providing a new practical approach for the nationwide upgrade of signal systems and network-based renovation of existing urban rail transit lines.

In the future, Traffic Control Technology will take this award as an opportunity to continue advancing the iterative upgrading and large-scale deployment of cross-line operation renovation technology. At the same time, it will plan frontier technology research and development around the needs of high-quality urban rail transit development, empowering industry-wide network upgrading and efficiency improvement with original achievements.