The MAX Blue Line is a light rail line of the MAX Light Rail system in Portland, Oregon, United States. Owned and operated by TriMet, it connects the cities of Hillsboro, Beaverton, Portland, and Gresham via 51 stations on 32.7 miles of track—the longest in the system. The line carried an average of 55,360 riders per day on weekdays in May 2018, making it the busiest among the five MAX lines. The Blue Line runs for 22½ hours per day from Monday to Thursday, with headways of up to five minutes during rush hour. Service runs later in the evening on Fridays and Saturdays and ends earlier on Sundays.