Run the night line.
Choose a colour. Drag through station dots. Open the signal. Every arrival plays the city.
D04 INTERLOCKING · ALL LINES UNDER SIGNAL CONTROL
CONTROL ROOM NOTES
Track snaps to the printed station field. Start on one dot and drag through at least one more.
Stops are the dots your line captures. Share a named station with another colour to build an interchange.
Sound changes across both axes: north–south sets the register; west–east advances the scale and stereo position.
Signal controls one service. PLAY ALL LINES clears or holds the entire network; Space does the same.
Keyboard 1–8 selects a line sound; A S D F G plays; arrows change tempo; R reverses.