Line

NIMBY rails game concepts
Geography	World map Population layer Admin layer
Map objects	Blueprint Track Station Signal Layers Building
Line concepts	Stop Timetable Duration
Train concepts	Run Order
Simulation	Pax Origin Destination Dominating trip Path Accounting Satisfaction

A line is a sequence of one or more stops, and some associated data like fares and line duration. Trains can follow lines by setting them in auto mode or by creating orders.