https://www.tunnelsandtunnelling.com/videos/breakthrough-on-sao-paulo-metro/
Breakthrough on Sao Paulo Metro - Tunnels and Tunnelling
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https://resources.sw.siemens.com/sr-RS/brochure-fire-protection-road-metro-rail-tunnels/
Fire protection for road, metro and rail tunnels | Siemens
Siemens Sinorix high-pressure water mist offers advanced fire protection for tunnels, enhancing safety, minimizing damage and ensuring operational continuity...
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https://litum.com/lone-worker-safety-metro-paris-rtls-case-study/
Lone Worker Safety in Tunnels: Metro Paris RTLS Case Study | Litum
May 12, 2026 - How Litum deployed lone worker safety RTLS to protect 400 construction workers in underground tunnels for Europe's largest urban transit project, the Grand...
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https://pebeka.pl/en/what-we-do/metro-tunnels-and-stations/the-sungai-kelinchi-perak-hanjong-tunnels---malaysia
The Sungai Kelinchi, Perak Hanjong tunnels - Malaysia / Metro tunnels and stations / PeBeKa S.A.
PeBeKa built a discharge tunnel for the Sungai Kelinchi reservoir, a hydrotechnical tunnel on the island of Penang, and a shaft together with a transport...
https://www.dubaimetro.eu/67km-of-tunnels-for-doha-metro-completed/
67km of tunnels for Doha Metro completed | DUBAI METRO 2024
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