IO and Metrolinx issue RfP for Yonge North Subway Extension, Canada June 13, 2026 | News, North America News Infrastructure Ontario (IO) and Metrolinx have released a Request for Proposals (RfP) for the Yonge North Subway Extension – Stations, Rail and Systems (YNSE – SRS) contract. The contract is being del... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password