LIOS light rail network to be developed around Lisbon, Portugal July 20, 2021 | Europe News The municipalities of Lisbon, Oeiras, and Loures have finalised a cooperation agreement to develop a 24-km-long new light rail line around Lisbon, branded the ‘LIOS’ network. The project is estimated ... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password