USA : Washington's Silver Line’s second phase was to be different. It fell into the same trap.
The story of Washington's Silver Line. How to make the same mistake more than once. "During eight...https://www.washingtonpost.com/transportation/2022/11/12/silver-line-extension-dulles-challenges/...Tender invited for Delhi Metro Gray Line tunnel construction
It is for: Construction of Cut and Cover tunnel box from Chainage 5050.35 (UP Line) to 5340.00 (UP line) for extension of Dwarka Naja...Tunnel Boring Machine Terratec S-63 makes breakthrough at Dharavi for Mumbai Metro Line-3
Terratec Tunnel Boring Machine S-63 operated by joint venture of J Kumar...at Dharavi station’s northern-end on Mumbai Metro’s 33.5 km Aqua Line (Line-3). https://themetrorailgu...Mumbai Metro: Tunnel Boring Begins On Line-7A's Twin Tunnels Planned For Direct Airport Connectivity
This metro route constitutes a 3.42 km extension of metro line-7 (red line), which links Dahisar East to Gundavali. https://swarajyamag.com/infrastructure/mumbai-metro-tunnel-boring-begins-on-line-7as-twin-tunnels-planned-for-direct-airport-connectivity
cover tunnel photo by: Matt Brown from London, England / CC BY
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