|| Sorts trains by their length. In this example trains longer than 5 cars (or 2 tiles) will be sorted via the penalty, those of 5 cars or less through the non-penalty line. this is useful when trains of varying type use a station, and some platforms are shorter than others. It can also be used at junctions where there are two options of track, to move shorter trains onto a loop with tighter turns. Finally it may be used to seperate main line trains from local trains (assuming different train lengths). A local train may be forced onto a longer, slower loop to allow mainline trains to pass.
|| Audigex, original credit unknown.