I am flying through a tunnel with distinct orange emergency doors and white wall paneling. The driving is on the right side of the road. The signage style and the tunnel architecture strongly resemble infrastructure found in Northern Europe, particularly Scandinavia. I suspect this is in Sweden, likely near Stockholm given the tunnel design. I am moderately sure of this location.

then: forward

The tunnel architecture with the distinctive orange emergency doors and the specific lighting arrangement is characteristic of the Södra Länken tunnel system in Stockholm. The light blue signage and the overall tunnel design confirm this is a major urban motorway in Sweden. I am very confident this is part of the E4/E20 motorway network in Stockholm.

then: guess