Methodology
Urban Rail Atlas presents official annual station observations without turning them into estimates, real-time conditions, or line totals.
What a value means
Every value carries its metric, fiscal-year period, publication status, source, and retrieval date. Values may only be compared when their reporting definitions are compatible.
Station complexes
Some operators publish one figure for a connected station complex. That total stays on the complex page; it is never divided among member stations or assigned to a line.
Missing values
Missing does not mean zero. Trend lines break across an unpublished fiscal year, and the exact table states the absence.