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Developer Space – Open Data

Welcome to the Société de transport de l'Outaouais's (STO) Developer Space.

We are sharing our GTFS (General Transit Feed Specification) data with the developer community to enable the creation of rider information tools based on scheduled data.

This page has a link to download the GTFS data as a ZIP file. The data contain all the raw information from our system for planned schedules. These data make it possible to geolocate bus stops, identify each individual bus route and obtain the full details of planned schedules.

Developers can refer to the table containing the assigned dates and availability of the data at any time. You can also join our e-mail list to be notified whenever any new versions of GTFS data become available. The Terms of Use govern their use. We invite you to read the terms carefully before downloading the ZIP file.   

Give your imagination free reign and have fun! And please don't hesitate to tell us about the mobile apps and Web sites that you have taken the time to create with these data.

Data provided

Below is an overview of the GTFS files provided:

  • Terms of Use (readme_first.txt)
  • Bus stop positions (stops.txt)
  • Bus routes (trips.txt)
  • Planned timetables for each bus route at each stop (stop_times.txt)
  • Service schedule (calendar.txt)
  • Holiday schedule (calendar_dates.txt)
  • Transfer points (transfers.txt)
  • Accessible service (routes.txt)

The following information is also available:

Terms of use

Like every public organization that shares its data, the STO asks that users review and accept the STO's Terms of Use.

Read the Terms of Use

Compliance with these Terms of Use is mandatory in order to use the STO's open data for commercial or other purposes. By downloading the GTFS files, developers agree to comply with the related Terms of Use. Developers who do not agree to all the terms may not use these data and must refrain from downloading the files. 


The STO and its employees are not available for and cannot commit to offering support or guidance for users of its open data.

The STO recommends that, if needed, developers consult the many sources of information already available on the Internet regarding the use of GTFS files, such as:

Availability of GTFS files and updates

Whenever possible, the STO plans to make the GTFS data for planned schedules available two weeks before the date that the new assignments take effect.

Note that files are very likely to be updated between two assignment dates during the year.

Information e-mail for developers about the availability of new files

To receive an e-mail notification that new files are available, register here. By registering, you will also be able to contact us to share your ideas and tell us about the different applications being developed.  

Assignment Start Date

Planned File Availability Date
Subject to change depending on operational constraints

Present assignment - Including Holiday service and Winter service

Files currently available

Spring Service - In effect starting March 26, 2018

March 12, 2018

Summer Service - In effect starting June 18, 2018

June 4, 2018

Fall Service - In effect starting August 27, 2018

August 13, 2018

Download the GTFS files for planned schedules

XML Files

The following links will lead you to the XML Files for access to all alerts sent by the STO regarding System-Info, Promotions and contests as well as Job offers (in french only).

System-Info Alerts

Promotions and Contests Alerts

Job offers Alerts (available in French only)

Address information and geographic coordinates

Get the address information and geographic coordinates for all STO's Customer Service Points, Recharging Sites and Ticket Retail Outlets. Available at




2012 Société de transport de l'Outaouais. All rights reserved. The information and data on this site may not be used for business purposes or financial gain without authorization from the STO.