flow patterns can be seen visually
You need tunnels in WWII so that the soldiers who were waiting for countries to attack them would have somewhere safe to wait and live for the many months they had to. The tunnels in New Zealand are very secure, on top of the tunnels there is piles of dirt so if grenades went off it would not do any damage to them.
To abridge the circuitous routes
they are vertical tunnels, angle tunnels, and horizontal tunnels. THE END
yes there are tunnels
when they finish making the tunnels
Depends on what you mean by tunnels. There are the short tunnels that allow you to move from playground to street and vice-versa.
Not tunnels for auto traffic. There are two auto tunnels on the westbank of the Mississippi River.
Tunnels of Doom happened in 1982.
Tunnels of Doom was created in 1982.
Tunnels of Armageddon was created in 1989.
Tunnels of Armageddon happened in 1989.
Tharolian Tunnels was created in 1982.
Tharolian Tunnels happened in 1982.
Drakelow Tunnels was created in 1943.