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Due to major construction work around Champlain bridge, Turcot Interchange and part of the Bonaventure highway, buses who transit through Champlain bridge may be delayed.  Consult mitigation measures (French only)

Roussillon sector


The RTM Roussillon sector provides public transit service by bus in Delson, Saint-Constant and Sainte-Catherine.


Schedules and routes
Customer service


Free local transit

All local travel within Delson, Saint-Constant and Sainte-Catherine is free for all users.
For other commutes, consult the Fares section


Family pass

The family pass allows 1 adult and 2 children or 2 adults and 4 children unlimited travel for a 24-hour period.
To find out about rates, consult the Fares section



To serve you better, a taxibus service (booked in advance) is available for certain sectors. A space is reserved for taxibuses at the Georges-Gagné park-and-ride lot. Some taxibus lines are available on reservation only.
Consult the schedules

Synchronization of buses to stations

Many bus routes have schedules that are synchronized with train departures and arrivals. Everything to make your journey easier!

  • Line 33: feeder service to Sainte-Catherine station Monday to Friday during peak hours
  • Line 35: feeder service to Saint-Constant station Monday to Friday during peak hours
  • Line T36: feeder service to Delson station Monday to Friday during peak hours
  • Line 38: feeder service to Sainte-Catherine station Monday to Friday during peak hours
  • Line 40: feeder service to Saint-Constant station Monday to Friday during peak hours
  • Lines 30A and 30B: feeder service to Saint-Constant station Monday to Friday during off-peak hours
  • Line T30: feeder service to Sainte-Catherine station Monday to Friday during off-peak hours



The RTM Roussillon sector relies on TARSO services to provide paratransit services to residents in the municipalities of Saint-Constant, Sainte-Catherine and Delson.


Admission et reservations


Territory served

Transit is available in the following territories:

  • Candiac
  • La Prairie
  • Saint-Philippe
  • Saint-Mathieu
  • Delson
  • Saint-Constant
  • Sainte-Catherine

Metropolitan travel: The adapted transport service is also available for off-territory travel. For more information on metropolitan travel schedules and zones, consult this page or download the User guide (French PDF).

Companies offering the service


  • Autobus Citadelle Inc.


  • Taxi du Bassin de Chambly
  • Taxi St-Césaire (St-Césaire sector)


  1. Consult the eligibility criteria
  2. Download the application form (PDF)
  3. Send the duly completed form by mail to TARSO Inc.

If you are deemed eligible for paratransit services, the admission committee will assign you an eligibility and accompaniment type that reflects your current needs.
Types of eligibility:

  • general
  • provisional
  • seasonal
  • partial

Accompaniment may be:

  • mandatory;
  • temporary for familiarization purposes;
  • optional;
  • for assistance needs at destination;
  • for parental responsibility;
  • unauthorized.

Disabled children under the age of six must be accompanied by someone at least 14 years of age.

Reserve, modify or cancel your commute

Travel must take place from Monday to Sunday between 5 a.m. and 2 a.m.
Reservations are made by phone:

  • 450-444-2555
  • from Monday to Friday between 8:30 a.m. and noon and between 1:00 p.m. and 4:30 p.m.

Transportation must be reserved before noon (business day).
You must call between 3:00 and 4:30 p.m. the day before to confirm the transit hours.

Documents and forms



Désolé, cette page n’est pas accessible aux lecteurs d’écran ou à tout autre dispositif d’assistance. En effet, elle contient une carte géographique présentant l’emplacement des terminus et installation intermodales.
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