Milestone: first test trains run through Metro Tunnel - Infrastructure Magazine

Test trains run through Metro Tunnel - Rail Express

First Station Completed for Melbourne's Metro Tunnel

Metro Rail News

Crossrail begins running trains through Central London tunnels

Trail Run Conducted in Pune Metro's underground Section - Metro

Maximum speed testing underway in Metro Tunnel - Infrastructure

Caltrain begins testing EMUs - International Railway Journal

Major milestone as test trains run through Melbourne's Metro

Metro Tunnel facing setback over hospital interference