[haspok]

> They have a smaller geographic footprint

You might think that saves a lot of money, until you drive around Zürich (think: M25), and realise that about 80% of your drive was through tunnels... and Zürich is not even mountaneous.

[dhfbshfbu4u3]

I lived in Zürich for two years and I’ve traveled extensively in the country.

[ben_w]

Be more impressed if you said you were a civil engineer. Living in a house didn't tell me what makes them expensive.

So, Zürich: you remember the tunnel that comes out half way to Adliswil, under Uetliberg?

What did it cost as a tunnel, what would that have cost as a surface road in reality, and what would it have cost as a surface road if the area had been flat? *That* is why you're being called out by loads of people for "a smaller geographic footprint".

Tunnels are expensive: https://www.bbc.com/future/article/20220621-what-if-roads-we...

[dhfbshfbu4u3]

Are you talking about the A3? If I recall correctly, it was like CHF 1B? That’s at least 20X more per km than a surface road? but it’s also more than just a car tunnel.

As for call outs, who cares? Some people will find a reason to nag on any day that ends with a y.