Based on 2007 data, APTA published the 2009 Fact Book with rankings of Transit agencies based on overall ridership, Buses, Light Rail, Commuter Rail, heavy rail and more. Heres a summary of where TriMet and other West Coast agencies stand with definitions provided in the Fact Book:
Based on: Unlinked Passenger Trips is the number of times passengers board public transportation vehicles. Passengers are counted each time they board vehicles no matter how many vehicles they use to travel from their origin to their destination and regardless of whether they pay a fare, use a pass or transfer, ride for free, or pay in some other way. Also called boardings, & Passenger Miles is the cumulative sum of the distances ridden by each passenger.
Vanpool is ridesharing by prearrangement using vans or small buses providing round trip transportation between the participant's prearranged boarding points and a common and regular destination. Data included in this report are the sum of vanpool data reported in the National Transit Database (NTD) and do not