The Zurich main station - Altstetten - Oerlikon cross-city line forms the central part of the West- East-axis of the Swiss railway lines. The Weinberg tunnel is the centrepiece of the cross-city line and connects the new through station “Löwenstraße” in Zurich with Oerlikon station.

1,700 m above sea level: In the Linthal Project 2015 the inclined tunnel with an incline of 24 % compensates an altitude difference of 900 m in the high mountains of Switzerland.

Railway tunnel provides a modern connection of Zaventem airport close to Brussels to the European high-speed railway system and to E 19 motorway.