The line is double track, allowing visual signaling and speed adjustment on all at-grade stretches. In city streets S60 track is used; on private right-of-way, S49 track. The minimum curve radius is and tracks in city streets are laid within a rubber jacket to reduce noise. In the tunnels, only one tram can operate in each direction; this is regulated by lights and an automatic Train Protection system. Signaling uses the German BOStrab system, not traditional Norwegian light signals. The line has traffic signal preemption, so the trams send a signal to the traffic light control when the driver starts the door-closing signal to give the tram priority at traffic lights.