Off Limits: Underground - Go inside an underground rail line tunnel

Bustling cities call for mega transportation systems and in this episode of Off Limits, Dr. Larissa Vingilis-Jaremko finds out how they’re built. Watch as she heads below the surface into an underground rail line tunnel with engineer, Veronica Velayo. This project is supported by the Natural Sciences and Engineering Research Council of Canada. www.GirlsInScience.ca