With this mod, FREIGHT trains are sometimes very long (up to 99 wagons: 1.+ miles (1.8+ Km)). Some are mixed freight; some are unit.
All trains have only one loco though because I haven't yet figured out how to add more (I'm working on it).

Note: 
1) with 1.39, max wagon achievable is 99.
2)Except Phoenix, which has only a light locomotive.

CAUTION: When very long trains appear (50+), hardware resources can be taxed (fps drops significantly). If that happens, check your game's root config.cfg; set "uset g_lod_factor_traffic "1.0"". If it still stutters badly, use the sister mod: 

https://steamcommunity.com/sharedfiles/filedetails/?id=1760125254
