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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.

Real-time open data sharing

Thanks to a partnership between the STO and Transit, our clientele now has access to a real-time app. The STO selected the Transit app as the first app for sharing its real-time data because this is something completely new for us and we had to seek the help of experts in the field. We then worked together with our real-time data provider and the Transit app developers who, with their help and expertise in this area, assisted us in verifying and validating the information contained in our real-time data (GTFS-RT). 

We are working on making the real-time open data available to all independent developers. Once the real-time open data are available, you will find all the necessary details on this Web page. New terms and conditions will also govern the use of these data.

An announcement will also be sent to subscribers on the developer e-mail list once the data are available. 

Scheduled 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

Winter service - Including Holiday service

Present assignment - Spring Service 2020

Files currently available

Summer Service 2020

Files currently available

Fall Service 2020

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)


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.