1:30, 7:35, 9:57.
That is one specialized piece of equipment. I imagine the driver being a freelancer that just shows up anywhere anyone needs a tunnel built. Mr. Tunnel, that's the name. Than name again is Mr. Tunnel.
If you look closely, you'll notice the dome-roller-thing is simply attatched to the bed of a normal flat-bed truck. So it's not a insanely-specific-truck, it's an insanely-specific-piece-of-equipement on top of a normal truck.
I disapprove of the non-standard "+" connector on the blocks. Clearly, they should have gone with "⣿" instead.
Fortunately that patent has expired!
they wanted to use: °o°
More information and videos from the manufacturer.
And that's not a tunnel, that's a bunker.
It's possible to make actual tunnels using a similar technique.
Careful with that backfill, Eugene.
The next video Youtube showed me after that was even neater:
the Golden Gate Bridge Road Zipper
You mean this zipper?
Who do you turn to for a state of the art fallout shelter at a good price? Serious question. It must be an industry. A vault built like this and set up with air filters and generators must be in the running.