panels:

This section of line is free. In this section there is no train and no train will stop here either.

A train has been ordered to this section of the track, but has not arrived yet. A click on this panel shows the route of the arriving train.

A train stopped here. The yellow arrow in the panel indicates the direction in which the train will depart.

 

 

 

inside the panels:

1 ... 11

These number indicate all the stations where a train stops or where a train is registered.

I, II, III, IV

Each of the 4 trains is identified by a unique Roman number.

This symbol is used to identify the intermediate stations between the departure and destination of an ordered train.