tunnel Archives - International Railway Journal

tunnel

June 25, 2026 | Infrastructure

Using AI to automate tunnel inspection

With the labour force expected to shrink over the coming years, automating tunnel inspection has become a pressing need for the railways of Japan. Takashi Nakayama, Keisuke Shimamoto and Kazuhide Yashiro explain how the Railway Technical Research Institute (RTRI) has developed an AI-based system to detect defects and assess structural soundness.

November 7, 2025 | Infrastructure

Bulgaria and North Macedonia agree cross-border tunnel

Project is expected to cost €2bn.

April 15, 2025 | High-speed

Contractor chosen for Polish HS tunnel construction

Austrian firm Porr wins $US 570m contract for 4.6km tunnel under Łódź city centre.

May 17, 2023 | Metros

Agra Metro tunnelling breakthrough

TBM has reached Agra Fort station in record time since being launched in February.

May 2, 2023 | Metros

Train testing begins on metro line under Sydney Harbour

City & Southwest project’s 15.5km twin tunnels are the first to pass under the waterway.

April 27, 2023 | High-speed

Turkey officially opens 405km Ankara - Sivas high-speed line

First use of domestically produced rail and slab track on a Turkish high-speed line.

April 12, 2023 | Infrastructure

Breakthrough announced in China’s Helan Mountains tunnel project

Construction is underway in an environmentally sensitive area crossed by the Great Wall.

April 6, 2023 | Passenger

IRJ News in brief - Transit

Metro lines in Málaga, Fukuoka, Dhaka and Bangalore extended, new LRVs for both Portland light rail networks, and Melbourne Metro Tunnel tracklaying completed.

April 4, 2023 | Infrastructure

Grand Paris Express Line 17 Phase 2 track and catenary contract awarded

Project involves tracklaying and power systems installation on a 3km section.

March 22, 2023 | Infrastructure

Tunnelling work begins on Telese - Vitulano section of Naples - Bari HSL

Work involves track doubling, line and station upgrades, and four new stations.

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