On December 27, Shanghai Suburban Railway Airport Link Line went into trial operation. As one of the first 11 demonstration suburban railways in China, this project showcases numerous innovations that set industry benchmarks. CASCO provided an efficient and intelligent complete suburban railway signaling system solution, leading a new chapter in suburban railway construction with three major innovative initiatives.

First Realization of Automatic Turnback with CTCS2+ATO System

CASCO supplied the CTCS2+ATO signaling system for Airport Link Line and achieved a significant technological innovation by adding automatic turnback function to the system, a first in the industry.

With the automatic turnback function, train drivers can efficiently complete the automatic turnback within 3 minutes with a simple one-click operation. Compared to traditional manual mode, this innovation significantly shortens the turnback interval and enhances operation efficiency. Based on the successful practice of this project, CASCO's achievements in suburban signaling system solutions have been successfully incorporated into industry standards.

Leading Innovative Practices in Dispatching System Integration

To meet the two core demands of network and mass transit operation of Airport Link Line, CASCO deeply integrated advanced scenarios and design concepts of metro dispatching system into the national railway Centralized Traffic Control (CTC) system. The system features automatic diagram adjustment, dispatching and multi-discipline linkage, as well as functions such as train holding and skip-stopping emergency handling. Through a series of innovative technologies, it greatly improves the flexibility and intelligence of dispatching, and significantly enhances the system's rapid response and handling for various emergencies.

CASCO's unique design of the dispatching system not only perfectly adapts to the operation requirements based on the "four-network integration" of interconnection, but also brings more efficient and convenient travel experience, meeting people's expectations for high-quality and intelligent operation service.

Pioneering a New Mode of Suburban Signaling Integration

The Airport Link Line is the first project in the industry where a single signaling supplier comprehensively coordinates the signaling integration of a suburban railway in national railway format. CASCO is responsible for the integration, production, supply, installation, commissioning, and delivery of the complete signaling system, including onboard and trackside equipment.

Relying on its deep integration capability and rich experience in urban rail transit, the CASCO team explored and practiced simultaneously, successfully establishing a product integration process, project implementation process, and joint commissioning and testing procedures suitable for CTCS2+ATO. Based on national railway technical standards and combining mature urban rail commissioning management experience, CASCO meticulously developed a CTCS2+ATO commissioning system with suburban characteristics.

Through this innovative signaling integration mode, CASCO scientifically planned system integration design, indoor integration testing, and on-site joint commissioning and testing, comprehensively coordinated various teams. During the implementation, it achieved zero issues within signaling system and greatly reduced the difficulty of coordinating with other interfaces, which efficiently promoted the smooth progress of design, testing, and commissioning work, and laid a solid foundation for meeting the key milestones of Airport Link Line as scheduled.

The efficient and high-quality opening of Airport Link Line not only demonstrated CASCO's technical strength but also provided a valuable reference for the implementation of more similar projects in the industry. With the booming of suburban railways, CASCO will continue to leverage its system technology and delivery capability to provide customized signaling system solutions for various suburban railways, and actively promote the research and development of signaling products for suburban railways oriented towards "four-network integration". It will continuously deepen its efforts in suburban railway, drive development through innovation, and contribute strong momentum to the high-quality advancement of the rail transit industry, jointly creating a better future.