<Direction>

<Direction> == <left> || <right> || <as previous> || <opposite>

<left>        == < || L || B

<right>       == > || R || J

<as previous> == + || F || A

<opposite>    == - || C || T || X || X || V

The direction of trains.

Only the above abbreviations may be used.

The "as previous" an "opposite" meanings use the direction on the same line / in the same group. If the movement stays alone, it is not part of a group or a line, then these values generate a random direction.