BRIO Signal StationAs you build up your train collection, you might start to encounter a bit of frustrating track congestion. The Signal Station offers an effective and cheerful solution. Each train will roll towards the station, where you'll have a choice of maintaining their direction or diverting them onto another line. This is managed with a simple twist of the red knob at the top of the station. The light will change as you orchestrate the perfect flow of traffic.