List of United States Light Rail systems by ridership
The following is a list of all light rail systems in the United States, ranked by ridership. Also included are those urban streetcar/trolley systems that are providing regular public transit service (i.e. operating year-round and at least five days/week). This list does not include statistics for metro/rapid transit systems (see: the List of United States rapid transit systems by ridership for those). Daily and annual ridership figures are based on "average weekday unlinked passenger trips" (where transfers between lines are counted as two separate passenger "boardings" or "trips"). The annual ridership figures for 2014 and average weekday ridership figures for the fourth quarter (Q4) of 2015 come from the American Public Transportation Association's (APTA) Ridership Reports statistics for the second quarter (Q4) of 2015, unless otherwise noted (e.g. NJ Transit systems). References with supplementary (i.e. non-APTA) ridership figures are included in the System column.
MBTA Green Line
LACMTA Gold Line
Muni Metro's T Third line
DART Green Line
METRO Blue Line
St. Louis MetroLink Train
TECO Line Streetcar System in Tampa, Florida
KC Streetcar in Kansas City, Missouri
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