Ridership
Ridership has been mostly rising since the line opened in July 2009 and had 12,000 boardings per weekday. Ridership has continued to rise each month, with average weekday ridership at 21,774 by May 2010. The completion of the line to its ultimate destination, the airport, subsequent passengers from closing Route 194, and shifting of bus routes to feed into the light rail contributed to the increase. For July 1 - September 30, 2012, average weekday ridership stood at new record of 28,921.
Sound Transit measures ridership by using the infrared sensors built into the doorways.
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