这些说明目前只有英文。
What is drawn
Every track in traintracks.xml, drawn from the node files it names: the railways, the Saint Denis trolleys, the mine cart line and the riverboat route. Dots are the nodes the track file marks as junctions, with the name of the track they join.
Trains
A track names a config group of trainconfigs.ymt, and a group lists the trains that may run on it. Onlyfreight_group is defined in that file; the other track config names have no entry there. Pick a train of the group to see its cars and the Lua that spawns it with _CREATE_MISSION_TRAIN. Most train config names are not known, so they are listed by hash, which is what the native takes.