United States: Ridership trends on Westside Express Service (WES) commuter rail, Portland, Oregon March 1, 2022 | Data & Statistics TriMet operates the Westside Express Service (WES) commuter rail line, serving Beaverton, Tigard, Tualatin, and Wilsonville. Trains on the commuter line operate every 30 minutes. WES travels from Wils... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password