Shanghai's first Yangtze-crossing rail transit line completes track laying

Shanghai Metro Line 22, the city's first rail transit project to cross the Yangtze River, completed track laying across the entire line on April 21, marking a new step forward in the integrated development of the Yangtze River Delta.

Shanghai Metro Line 22, the city's first rail transit project to cross the Yangtze River, completed track laying on April 21. [Photo/WeChat account: shchongming]

This achievement lays a solid foundation for the subsequent installation of electromechanical equipment, system integration testing, and the commissioning of electric trains.

The track-laying process for Line 22 began last July and was completed in nine months. Despite challenges such as the lengthy underground sections in the river-crossing segment, the construction team optimized workflows and adjusted sequence coordination, significantly enhancing track-laying efficiency.

On April 16, the first train for the Chongming Line was unveiled by CRRC Zhuzhou Locomotive Co Ltd. [Photo/WeChat account: shchongming]

On April 16, the first train for the Chongming Line was unveiled by CRRC Zhuzhou Locomotive Co Ltd. The train features a three-car fully motorized design and is equipped with the GoA4 highest-level fully automatic driverless system, capable of automated coupling and decoupling on the mainline.

The train incorporates cutting-edge technologies, such as silicon carbide auxiliary inverters and oil-free compressors, to emphasize energy efficiency. With a focus on safety, efficiency and maintenance, the train's design reflects themes of environmental friendliness, agility, intelligence and sharing, using eco-friendly materials.

Schematic route map of Shanghai Metro Line 22 (Chongming Line), spanning over 42 kilometers with eight stations. [Photo/WeChat account: shchongming]

Spanning 42 kilometers with eight stations, Shanghai Metro Line 22 will seamlessly integrate with Shanghai's metro network, significantly enhancing connectivity between Chongming district and the city's central areas. This development is set to improve regional transportation and contribute to the integrated growth of the Yangtze River Delta.