Construction begins on Rabat-Salé Tramway Line 2 extension, Morocco October 23, 2017 | Middle East & Africa News The consortium of Colas Rail and its subsidiary Les Grands Travaux Routiers (GTR) has commenced construction on the 7-km Rabat- Salé Tramway Line 2 extension. Construction work is expected to b... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password