Gotthard Base Tunnel is rated for 140 mph, not quite 200 mph but close. It has a maximum depth of 8000 feet. Would something like this qualify for the route acr

Gotthard Base Tunnel is rated for 140 mph, not quite 200 mph but close. It has a maximum depth of 8000 feet. Would something like this qualify for the route across the mountains? Optimal train path would probably be somewhat different from the current road network anyway, so road examples provide only approximate information about railway network construction difficulty.