Be careful, the content can be updated without reloading the page, visit our accessibility section for more information Passer au contenu principal


The bus network in Chambly-Richelieu-Carignan has been transformed to align with the REM on the South Shore and improve travel between regions. This new network is the result of consultations with users, citizens and local communities.

4 changes in 2023

The launch of the new bus network is scheduled for spring 2023, to coincide with the opening of the REM. From this date forward, buses that used to cross the Samuel-De Champlain Bridge will now take passengers to one of the REM stations in Brossard, where users can travel on to downtown Montreal or transfer towards other destinations on the South Shore.

  1. New bus routes

    Eight direct routes will provide users with quick access to the REM's Brossard Station. New routes will also facilitate travel between municipalities and towards major South Shore hubs:

    • Longueuil–Université-de-Sherbrooke métro station

    • Promenades Saint-Bruno

    • Chambly industrial area

    • Saint-Jean-sur-Richelieu

  2. New route numbers

    Bus and taxibus route numbers will also be changing. The new numbering system is organized according to 4 types of service:

    • Local - n˚ 20 to 299

      Local routes operating mainly within the sector

    • Upon reservation - n˚ 300 to 399

      Routes operating upon reservation only

    • Express - n˚ 400 to 599

      Lines running mainly during peak hours, to a metro, terminus or other major destinations

    • Regional - n˚ 600 to 799

      Routes connecting several municipalities

  3. New transit fares

    Since July 2021, the ARTM’s fare reform has divided the metropolitan area into four large fare zones. All municipalities in Chambly-Richelieu-Carignan are now located in Zone C, with the exception of Marieville which is located in Zone D. New transit fares have been available since July 1, 2022, to meet your travel needs.

    Learn more about the fare reform

  4. Park-and-ride lot

    Want to combine driving with using public transit? Take advantage of the park-and-ride lot at the Chambly bus terminal. It is free for all public transit users and served by most of the new bus routes.

    Learn more about exo’s park-and-ride lots

Frequently asked questions

We prioritized the review of our network in these sectors in order to align our services with the launch of the Réseau express métropolitain (REM) on the South Shore. Starting in spring 2023, the REM’s South Shore segment will link Montreal’s Central Station to three stations on the South Shore. From this date forward, buses that used to cross the Samuel-De Champlain Bridge will now take passengers to one of the REM stations, where they can travel on to downtown Montreal or transfer towards other destinations on the South Shore.

In October, CDPQ Infra announced the target date for the opening of the REM: spring 2023. The precise date will be shared approximately one month in advance.

An information campaign and activities will be deployed at this time to guide our customers through these significant changes.

Users can enjoy a region that is better connected, notably thanks to simpler transfers to other exo sectors and Réseau de Transport de Longueuil (RTL) services. As well, more citizens will now be within walking distance of a bus stop. The new bus network is also perfectly aligned with the REM, with eight routes that directly serve its stations. Service to commercial and industrial hubs has also been improved, during both peak and off-peak periods.

As soon as the REM opens on the South Shore, our buses will no longer have access to the Samuel-De Champlain Bridge. To get to Montreal, you may use our bus services to connect with the REM, which can then take you to several Montreal destinations. Certain bus routes will continue to serve major hubs in Longueuil (metro) and Montreal via the Mercier Bridge.

Also note that this situation has allowed exo to add more local routes as well as routes that facilitate cross-suburb travel.

Learn more about the new and improved network

The routes that link Chambly-Richelieu-Carignan with downtown Montreal via the Samuel-De Champlain Bridge have been modified in order to serve South Shore REM stations directly when they open. As much as possible, local service has been configured in order to limit the transfers required to access the REM.

Yes! The new bus network offers better cross-suburb service, and we’re planning to better align our services with those of the Réseau de transport de Longueuil (RTL) in order to facilitate travel between regions. The new REM terminals will be privileged areas for transfers between the two networks.

Yes, boarding and disembarking outside the territory we serve as well as transfers with the REM, STM and RTL are permitted, depending on your fare. To board an exo bus and travel into RTL or STM territory, you must hold a valid transit fare.

Learn more about the fare zones and valid fares for exo’s territory (French)

The preliminary estimated travel times to the REM are as follows:*

Travel time
Departure Brossard station
Chambly terminal ± 15 min
Faubourg Carignan ± 30 min
Richelieu CLSC ± 20 min

To see the REM travel times, click on the station you’ll be using:

*This is a preliminary estimate based on current data regarding anticipated traffic conditions. These estimates are valid for periods of traffic congestion (pre-pandemic), during morning rush hour.

The last departures from Brossard bus terminal are scheduled at 1:10 a.m. on weekdays and 1:03 a.m. on Saturdays and Sundays.

Trip planners (Chrono, Transit, Google) will be available one month before the new network opens.

Several stops will remain unchanged, while new stops will be added and others removed.

Our buses serve some 60 municipalities on Montreal’s North and South Shores, most of which are located in the Montreal Metropolitan Area. However, some municipalities are outside of this territory, such as Saint-Jean-sur-Richelieu, which has its own bus network.

Exo does not have the power to modify its coverage area. This is the responsibility of the Autorité régionale de transport métropolitain (ARTM), which is in charge of public transit planning, financing and fare pricing in the metropolitan area.

However, the new exo network will continue to serve the cegep and hospital in Saint-Jean-sur-Richelieu, as is currently the case.

No, the new Route 486 serving Richelieu and Marieville will stop at the REM's Brossard station.

According to an agreement between the Autorité régionale de transport métropolitain (ARTM) and the Caisse de dépôt et placement du Québec Infra (CDPQ Infra), as soon as the REM opens, exo and RTL buses will no longer have access to the Samuel-De Champlain Bridge.

Need help?

telephone icon 1 833 allo exo (255-6396)

Monday to Friday: 6 a.m. to 8 : 30 p.m.

Saturday, Sunday and holidays: 9 a.m. to 5 p.m.