Mascouche line
Exo commuter railway line in Montreal, Quebec

Mascouche (also designated line 15) is a commuter rail service in Greater Montreal, Quebec. It is operated by Exo, the organization that operates the commuter rail network in Greater Montreal.
Opened on December 1, 2014, the Montreal region's newest commuter train line required the construction of 10 new train stations, several civil engineering structures, and 13 km of new railway track. This includes some track in the median of Autoroute 640 between Repentigny and Mascouche.
The Mascouche line originally used the Mount Royal Tunnel en route to Central Station but the service was shortened in the 2020s when the tunnel was converted for use by the Réseau express métropolitain (REM). Mascouche is now the only Exo rail service to not reach Downtown Montreal. Connections to downtown can be made through transfer to the REM at Côte-de-Liesse or to the Metro at Sauvé station.
History
Original service
The line was announced as the Repentigny-Mascouche line in a press conference on March 17, 2006, and follows a major campaign by residents of eastern Montréal and the northeastern suburbs to restore commuter rail service. Originally estimated at $300 million and expected to open in 2008, the line cost $670 million and opened on December 1, 2014. The project included 10 new train stations, several civil engineering structures and 13 km of new railway track.
Begin with the source’s own compact description: “Mascouche line” is exo commuter railway line in Montreal, Quebec. The dossier treats that line as a proposition to test through Mascouche, line and commuter, not as a finished interpretation.
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This entry incorporates text from “Mascouche line” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.