The story
From 1913 to 1956, commuter service to Montreal was provided by the Montreal and Southern Counties Railway with four stops in what is now Chambly.
The Conseil intermunicipal de transport Chambly-Richelieu-Carignan (CITCRC) was formed in 1984.
In 1993 it was agreed to expand service to St-Mathias-sur-Richelieu, and in 1994 it was the turn of Marieville to join.
In 2000, the Agence métropolitaine de transport (predecessor to Exo and Autorité régionale de transport métropolitain) opened a park and ride in Chambly for commuters into Montreal.
Gestrans was contracted to manage the transportation system from 2008 through 2012 with Veolia Transport (formerly Connex) operating the buses, under an agreement that expired at the end of 2011.
In December 2011, the CIT network was expanded with local bus lines, using the park and ride as a terminus. In July 2012 a one-year pilot project was announced making these new local lines fare-free; only rides outside of the CIT territory would require a fare.
In October 2012, the CIT was rebranded to Blus (an acronym combining bus and plus), with a new visual identity. The fare-free pilot project was made permanent.
On June 1, 2017, a new law reorganizing public transit agencies in Greater Montreal abolished the CITs and established a new Réseau de transport métropolitain (RTM, later branded Exo), that, among other things, assumed the Blus responsibilities, assets and employees."L'objectif de la mobilité intégrée" (in French). La Presse. 2017-05-15. Retrieved 2024-08-20.
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When the Réseau express métropolitain started service between Montreal Central Station and Brossard in July 2023, Exo reorganized the bus network in the Chambly-Richelieu-Carignan sector. Bus routes that went to Terminus Centre-Ville or Terminus Panama now terminated at the new Brossard REM station. A new bus route numbering scheme was also implemented.
From Wikipedia’s article on Exo Chambly-Richelieu-Carignan sector, shared under CC BY-SA 4.0.4