King County Metro plans to commence RapidRide R Line service in 2032, US August 11, 2026 | News, North America News King County Metro plans to begin passenger service on the RapidRide R Line in 2032. The 12.87-km route will connect downtown Seattle with the Rainier Beach Link light-rail station, becoming the first ... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password