This doesn't reach Alps, it stops at foothills of them (Luzern, Thun). Of course its not absolutely flat, but it will mimic existing regular speed rail system.

This doesn't reach Alps, it stops at foothills of them (Luzern, Thun). Of course its not absolutely flat, but it will mimic existing regular speed rail system. Due to it not being rail, it can tackle few steeper parts (ie uphill around Lausanne, that's solid 300m altitude difference). Lausanne subway (tiniest city in the world to have one) also uses rubber tyres on the section which goes straight uphill.