The widget DirectionIndicator[double] displays the direction of the run, the direction of movement and the direction indicator of a lift.
If the lift is standing at a stop with a planned run in a specific direction this is indicated using an arrow and the message NEXT. If the car is moving in a specific direction, this is indicated with the appropriate arrow without NEXT. When the lift is inactive, it is possible to show the arrows and text dimmed instead of hiding them.