Kernrechtsfrage
Whether the tunnel easement contract with the canton is a public-law administrative expropriation contract or a private-law contract for jurisdiction purposes.
Extrahierter Entscheid
The contract is public-law in nature because it was concluded after the public display of the project and serves the direct implementation of a public transport/road project, so disputes arising from it fall within public law.
Extrahierte Begründung
For national road projects, the decisive moment is the public display of the execution project. Agreements concluded after that point are public-law in character when the canton acts as expropriator and the agreement primarily secures land rights needed for the public work.