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Frequent Service

TriMet's Frequent Service bus lines run every 15 minutes or better most of the day, Monday through Saturday. MAX Light Rail runs about every 15 minutes or better most of the day, every day. Service is less frequent in the early morning and late evening.

The Frequent Service network

Frequent Service lines connect the regional hubs where many riders live and work. In addition to providing more frequency most of the day on weekdays, some lines have a number of features designed to make your trips easier, faster and more comfortable:

  • new shelters and sign poles with service information and Stop ID numbers
  • ADA-compliant landings and curb ramps
  • bus stop re-spacing and curb extensions
  • better pedestrian access
  • traffic signal priority
  • bus-only lanes

Frequent Service fact:
58 percent of all bus trips are on Frequent Service lines.


Image of Frequent Service bus stop sign


Before the Great Recession, “Frequent Service” meant that buses and MAX came every 15 minutes or better throughout the day, every day. Starting in 2009, we were forced to temporarily reduce frequency on these and other lines due to budget shortfalls. Today, we are gradually adding more service on these popular routes.

  • November 2009: Frequency was reduced on some Frequent Service lines and MAX during mid-day, evenings and weekends. Buses only provided 15-minute service during the morning and afternoon rush hours on weekdays.
  • March 2014: Weekday mid-day service was increased to every 15 minutes on Frequent Service bus lines.
  • August 2014: Weekday evening service was increased to every 15 minutes or better on Frequent Service bus lines and MAX.
  • What's next: As resources allow, we plan to continue rebuilding the Frequent Service network to offer 15-minute or better service throughout the day, every day—including weekends.