Recently, there has been a significant development in the Huawei Lianqiuhu R&D Center Tram Project, where UCI is responsible for critical integration of communication and signaling systems. The project’s single-track loop has been fully connected, all stations are constructed, and the control system is now undergoing testing, nearing operational readiness.

The tram, a unique means of transport within Huawei’s Shanghai Qingpu R&D Center campus, connects 8 major clusters and 2 VIP stations in around 20 minutes. It provides convenient passage for employees while adding a distinct charm to the campus. UCI has pioneered the “Signaling System for Single-Track Bidirectional Operations”, leveraging the advanced vehicle-infrastructure cooperative model and single-track bidirectional operation technology. This system integrates communication and signaling subsystems deeply, and based on dynamic VIP vehicle insertion technology models, updates and manages schedules based on actual operations in real-time, thus developing a comprehensive solution for single-track bidirectional operations scheduling.

The “Signaling System for Single-Track Bidirectional Operations” comprises the central intelligent scheduling subsystem, interlocking control subsystem, onboard subsystem, and intelligent intersection control subsystem. Leveraging the operational practices of the Huawei Tram project in both unidirectional and bidirectional modes, UCI has delved into operational requirements in the medium and low capacity system sectors. Focused on a central pivot and addressing two key business directions, UCI has utilized three innovation strategies to achieve four pioneering technological breakthroughs in China.

A central pivot: Pivoting around the central intelligent scheduling subsystem, it oversees the entire operation to ensure precise allocation of commands.

Two key business directions: Intelligent passenger traffic organization and comprehensive train traffic control.

Three innovation strategies: By implementing dynamic vehicle-infrastructure coordination, intelligent control algorithms for single-track bidirectional operations, and multi-type train schedule management, the entire operational organization process is optimized.

Four domestic pioneering breakthroughs: Dynamic management of single-track bidirectional train operations, dynamic mixed operation of VIP vehicles, intelligent passenger traffic organization with multimodal vehicle-infrastructure coordination, and intelligent comprehensive train traffic control.

In the Huawei Tram project, UCI provides a central intelligent scheduling subsystem capable of handling complex operations in a single-track bidirectional setting. It constructs global route static information to enable intelligent compilation of bidirectional train schedules. These schedules reflect the arrival and departure information of each service and also plan in advance for the movement of each service and the avoidance of oncoming vehicles.

Furthermore, the central intelligent scheduling subsystem constructs a global perception of situational information along the route. It intelligently plans driving paths and dynamically adjusts collision avoidance strategies among different types of services (regular operations, shunting, rescue, VIP reception, etc.). It provides guidance information such as the next avoidance point and recommended speed ranges to assist drivers in completing train operations safely, efficiently and reliably.

During the system development process, the expert team at UCI focused on the entire medium and low capacity rail transit sector, and thoroughly examined the diversity in domestic rail transit. They meticulously considered multiple dimensions such as track quantity (single-track, double-track), line types (loop line, single line, main and branch lines), and system types (rail transit, ART), striving to ensure compatibility and performance across various transit systems. The successful implementation of this system in the Huawei Tram project drove innovation in medium and low capacity rail transit operational models and also significantly enhanced overall operational efficiency. Additionally, leveraging advanced intelligent management methods reduced land occupation by half, decreased track requirements, and substantially lowered project investments and construction duration.

In the system, UCI also employed their fully proprietary “Integrated Signaling Interlocking Control System”, which conforms to the highest SIL4 safety design level. This system features advanced architecture, higher integration, greater reliability, and flexible application configurations. It has been successfully applied in multiple projects, thus greatly simplifying maintenance, reducing maintenance costs, and fully simulating on-site conditions in station yard displays.

Previously, UCI’s Low-capacity Intelligent Integrated Scheduling System based on Cloud-Edge-End Collaboration was evaluated as internationally advanced. The “Signaling System for Single-Track Bidirectional Operations” builds upon the scheduling system’s technological achievements with further technical advance and iterative development. This signaling system significantly enhances the level of intelligence and optimizes operations scheduling efficiency and accuracy, thus demonstrating a strong driving force for new quality productive forces. Simultaneously, it provides robust support for subsequent intelligent transportation development and continuously contributes to achieving smarter, more efficient, and sustainable urban transportation goals.