4 ms·
I imagine such tunnel needs vertical vents every x meters or there would be funny air compression effects or rarified air issues?
by lazyant 11y ago
I imagine such tunnel needs vertical vents every x meters or there would be funny air compression effects or rarified air issues?
- rsync 11y agoThey need a lot of airway and exit tunnels - and not just for compression effects - a tunnel can become a very dangerous place very quickly: https://en.wikipedia.org/wiki/Mont_Blanc_Tunnel#The_1999_fire https://en.wikipedia.org/wiki/Mont_Blanc_Tunnel#The_1999_fir...