Today, L.A. Metro’s subway tunnels connect some of the city’s most densely populated neighborhoods. There are many other ...

The company uses large tunnel boring machines for construction. Almost 40 years after the Pacific Electric Railway closed its last subway tunnel, L.A. Metro Rail resurrected the idea of subway ...

A curious duo of coyotes were seen entering the Central Subway tunnel near 4th and Bryant Streets last week. A safety-check train spotted them ahead of opening service in the tunnel for the day.

Millions of cubic meters of rock were excavated using massive tunnel-boring machines, nicknamed “giant moles,” which carved a direct route for high-speed trains between Zurich and Milan.