Hi guys I own almost every route except rapid transit and bremen oldenburg and the steam routes and the narrow gauge. What could i uninstall that would not effect any layering. Sorry if awkward question. Thanks.
A tricky one. Something that layers onto one route could substitute for another. Additionally, some dlc may even be needed for another layer to appear (the SEHS Class 33 railtour needs Spirit of Steam installed for example, so uninstallinf Spirit of Steam disables that automatically). You could try uninstalling something and see what it affects. Although that's probably time consuming and easier said than done. Probably the best way to find out though.
LIRR 1 provides rolling stock for NYT - AI traffic at Penn. LIRR 2, Peninsula Corridor, Harlem Line and Antelope Valley do not provide rolling stock for other routes. Also MBTA Commuter provides only substitution(the same rolling stock, but in better overall quality) for Boston Sprinter.