February 3, 2024
The Tuen Ma Line-Navigating Hong Kong's Urban Tapestry

The Tuen Ma Line-Navigating Hong Kong’s Urban Tapestry

Discover the beating heart of Hong Kong’s Mass Transit Railway (MTR) system with the Tuen Ma Line, a transformative rapid transit network connecting the East and West territories. As the longest line in the MTR network, spanning 56.2 kilometers and featuring 27 stations, the Tuen Ma seamlessly merges the West Rail line and the Ma on Shan line, offering commuters an efficient and interconnected journey across the vibrant city.

Unveiling the Tuen Ma Line

Colored in distinctive brown on the MTR map, the Tuen Ma Line was officially introduced as a merger of the West Rail and Ma on Shan lines, achieved through the innovative “Tai Wai to Hung Hom section” of the Sha Tin to Central Link project. This groundbreaking addition, spanning 11 kilometers with six new intermediate stations, solidifies the Line as a key player in Hong Kong’s transportation network.

Chronology of Completion

The Tuen Ma Line’s completion was a two-phase process, with the Tai Wai to Kai Tak section opening its doors on February 14, 2020. This initial phase set the stage for enhanced connectivity and reduced congestion on the East Rail line. The subsequent Kai Tak to Hung Hom section was inaugurated on June 27, 2021. Marked the final piece of the puzzle, ensuring a continuous journey from Tuen Mun to Wu Kai Sha.

Key Features and Interchanges

Boasting ten interchange stations, the Tuen Ma Line seamlessly integrates with other major MTR lines. Passengers can easily transfer at Tai Wai and Hung Hom to the East Rail line, Diamond Hill and Ho Man Tin to the Kwun Tong line, Nam Cheong to the Tung Chung line, Mei Foo to the Tsuen Wan line, and Yuen Long, Tin Shui Wai, Siu Hong, and Tuen Mun for connections to the Light Rail.

Engineering Marvels

The Tuen Ma Line showcases a variety of construction methods. Including tunnel boring machines, cut-and-cover, and the unique drill-and-blast method employed in the Lion Rock Tunnel between Hin Keng and the Ma Chai Hang Recreation Ground. The line seamlessly transitions from underground sections in Kowloon to at-grade and elevated structures in the New Territories, providing a dynamic and visually appealing journey.

Rolling Stock and Upgrades

Equipped with a fleet of 61 eight-car trains. The Tuen Ma Line features a mix of SP1900/SP1950 and MTR CRRC Changchun trains. These trains, capable of handling up to 32,000 passengers per hour per direction, ensure a smooth and efficient commute. The line’s integration with the Sha Tin to Central Link project has led to upgrades. Aligning it with the standards of a full-capacity system.

History and Development

Before the merger, the West Rail and Ma on Shan Rail were operated by the Kowloon-Canton Railway Corporation (KCRC). The Hong Kong government approved the KCRC’s Sha Tin to Central Link scheme. Leading to the creation of the Tuen Ma Line. The line’s construction faced challenges, including delays attributed to construction defects at Hung Hom station. The eventual opening in two phases showcased the commitment to safety and operational excellence.

Future Extensions

Looking ahead, the Tuen Ma Line is poised for further expansion with the proposed Tuen Mun South Extension. This ambitious project aims to enhance connectivity and accessibility, reflecting the continuous efforts to bolster Hong Kong’s railway network.

WSP’s Role in Shaping the Tuen Ma Line

WSP is a key player in the development of Hong Kong’s transportation infrastructure. Played a pivotal role in the Tuen Ma Line’s evolution. As a multidisciplinary engineering design partner, WSP contributed to the construction, modification, and enhancement of various stations, tunnels, and auxiliary systems, ensuring a seamless and future-ready transit experience.


The Tuen Ma Line stands as a testament to Hong Kong’s commitment to providing efficient, interconnected, and sustainable transportation solutions. With its extensive network, strategic interchanges, and engineering marvels, the Line is not just a railway. It’s a lifeline connecting the diverse tapestry of Hong Kong’s urban landscape. As the city looks toward the future, the Tuen Ma is calm to play a central role in shaping the next chapter of Hong Kong’s transportation legacy.

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