HS2 Euston Station Interior - image by HS2 ltd.

Ontario Line subway - Metrolinx

Faroe Islands Eysturoy Tunnel I did the composition and some markings by using screen shots of Duckduckgo map.

NCC Faroe Islands Eysturoy Tunnel  - image by NCC

Eysturoy Tunnel Depth Diagram By Rennohokwerda1 - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=97378062

NCC Faroe Islands Eysturoy tunnel roundabout (image by NCC)

HIZRAY İstanbul Hızlı Yeraltı Gidiş Projesi - İstanbul High Speed Subway project.

Jakarta-Bandung High Speed Railway Tunnel 1  breakthrough ceremony National Development and Reform Commission (NDRC),People´s Republic of China

Melbourne Suburban Rail Loop route (in green) and the existing lines (in grey). Screen shot from Department of Transport video.