Metrolinx is building a convenient and integrated transit network which includes electrification. Electrifying GO rail corridors is a multi-year project and we are committed to working with residents across the Greater Toronto and Hamilton Area throughout the process.

The first step to electrify GO-owned corridors was the Transit Project Assessment Process (TPAP), which was completed in 2017. The TPAP built on previous environmental assessments and public engagement including the 2010 GO Transit Electrification Study, the TPAP for the Union Pearson Express, and the Class Environment Assessment For Minor Transmission Facilities conducted by Hydro One.

Metrolinx is committed to finding the most sustainable solution for electrifying the GO rail network. That's why, in addition to studying the environmental impacts of traditional electrification, Metrolinx is examining the feasibility of another form of electrification - hydrogen powered vehicles.

You can read more about this study here: GO Transit Hydrogen Feasibility Study

The GO Rail Network Electrification Project has formally issued the Notice of Completion for the Transit Project Assessment Process (TPAP) for the proposed electrification of GO-owned corridors.

We thank everyone for their feedback to date.

The following Environmental Project Report (EPR) viewing location has been added in Mississauga:

Mississauga Central Library
301 Burnhamthorpe Road West
Mississauga, ON L5B 3Y3

Note that this location is in addition to the twelve locations listed on the Notice of Completion.

Below you can find the technical reports which are part of the final Environmental Project Report (EPR).

Appendix A – Natural Environmental Report

Appendix B - Preliminary ESA Report

Appendix C – Cultural Heritage Reports

Appendix D - Archaeological Assessment Report

Appendix E - Land Use & Socio-Economic Report

Appendix F - Air Quality Report

Appendix G – Noise and Vibration Modelling Reports

Appendix H – Visual Assessment Report

Appendix I – Utilities Report

Appendix J – EMI/EMF Report

Appendix K – Storm Water Management Report

Appendix L – Consultation Report

Appendix M – Cultural Heritage Report

Appendix N – Concept Electrification Corridor Plans Report

Appendix O – Conceptual Traction Power Facility Plans

Appendix P – P1: Mapping of Ecological Land Classification Areas and P2: Mapping of Terrestrial and Aquatic Features

Appendix Q - Cultural Heritage Resources Report

Appendix R – Land Use and Impact Zones

Appendix S – Noise Mitigation Maps

Appendix T - Mapping of Viewsheds and Potential Visual Impact Areas

Appendix U – Reference List

Appendix V – Groundwater Assessment Report

We are committed to community engagement. We thank all who have joined us and kindly shared their input during the various public meetings.

Your questions and comments are welcome any time. Please email them to us directly at:

Below are details of the meetings along with meeting summaries:

Public Meeting #3 – June/July 2017

Public Meeting #2 – November 2016

Public Meeting #1 - February/March 2016

Prior to its opening in 2015, a TPAP for the Union Pearson (UP) Express was completed on December 2014. In addition, a Class Environmental Assessment (EA) for Minor Transmission was completed by Hydro One in February 2015.

On April 1, 2014 Metrolinx signaled the completion of the UP Express Electrification Environmental Project Report (EPR). This report was then made available to the public for a 30-day review and comment period.

After the public review period, all submitted comments were reviewed by the Ministry of the Environment (MOE) as part of their 35 day review process. The MOE did not issue notice under subsection 12(1) of the Transit Regulation within the accorded time, therefore Metrolinx submitted a Statement of Completion to the MOE to complete the TPAP.

To view the Environmental Project Report, please click the links below:

EPR Appendices

May 2009, Metrolinx announced it would do a one-year study on the feasibility of electrification of the entire GO rail system. In comparison to other similar studies, this study was unique as it examined the entire GO rail system including the UP Express.

The study was completed in December 2010 and on January 19, 2011, Metrolinx released the findings of its comprehensive electrification study.

Upon review, it was recommended to the Metrolinx Board of Directors to proceed with the electrification of the GO Kitchener and Lakeshore corridors in phases, beginning with the UP Express on the Kitchener corridor.

At its Board meeting on January 26, 2011, the Metrolinx Board of Directors approved the staff recommendation, subject to provincial funding.

The Province of Ontario, through the Ministry of Transportation, has funded the environmental assessment for Phase 1: the Air Rail Link from Union Station to Pearson Airport as a first step toward electrification.

The study in its entirety can be found here: E-Study Final Report

E-Study Final Report Appendices

If you are interested in previously posted reference documents and can no longer locate them on the Electrification microsite, please contact us to obtain a copy at:

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