Overview
- The new branch adds 14 stations running through the Mount Royal tunnel, linking McGill and Université de Montréal before continuing to Laval and terminating at Deux‑Montagnes.
- With the extension, the REM now spans roughly 50 kilometres across 19 stations, with the full network planned to reach 67 kilometres and 26 stations.
- Following a free preview weekend that drew about 250,000 trips, opening-day operations ran on time with no mishaps reported by the operator.
- Service on the new branch runs from 5:30 a.m. to 9:30 p.m. to leave overnight windows for testing on the L’Anse‑à‑l’Orme line.
- Early riders reported shorter commutes and smooth rides, and officials said winter issues seen in past seasons have been addressed with contingency plans.