That's been on the cards for a looooong time. One of my assignments in my MA was to weigh up the different merits of the different types of tunnel they could create (cut and cover vs bore etc).
Of course, I know and have been following it for a long time. There still hasn't been that much movement on it until now.
@Oliver Schick started
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That's been on the cards for a looooong time. One of my assignments in my MA was to weigh up the different merits of the different types of tunnel they could create (cut and cover vs bore etc).