HS2 Tunnel Update | Chiltern and Long Itchington

You can support me over on Patreon:   / chris_rail_focus   Or by joining Youtube:    / @rail_focus   alternatively if you'd like to buy me a coffee you can do so on my Ko-Fi page: https://ko-fi.com/rail_focus or by making a purchase on my Redbubble photography page: Prints, Mugs, T-shirts and much more: https://www.redbubble.com/people/EngP... BlueSky: https://bsky.app/profile/railfocus.bs... Facebook   / engineeringfocus   Twitter:   / engfocus   Instagram: www.instagram.com/engfocus Nonstop Eurotrip:    / @nonstopeurotrip   In this video we explore Long Itchington and Chiltern Tunnels progress and how engineers have sought to overcome a phenomenon known as "tunnel boom". #HS2 #Rail #Tunnel