Environmental Assessments
As we work toward economic recovery throughout the Greater Toronto and Hamilton Area, Metrolinx is continuing to advance projects to support the long-term growth of the GO rail network.
Throughout the pandemic, transit construction projects have been considered an essential service by the province; therefore, construction has moved forward on all projects. We are very aware that the new normal post-COVID may look very different for transit and we have begun looking very closely at all of our policies and procedures to ensure we adapt appropriately. As we move forward, we know that building complete communities with good access to transit will continue to be important. At this point, Metrolinx and Infrastructure Ontario are closely monitoring the market to understand the impacts of the pandemic.
Metrolinx continues to grow, expand and to adapt transit service to the needs and demands of our ever-changing region. We look for ways to evolve our service that will meet passenger’s commuting needs, while also providing solutions to address traffic congestion.
A first step in any project is comprehensive planning. During this planning process, many of Metrolinx’s expansion projects must undergo a Transit Project Assessment Process (TPAP) or focused impact assessment process. This process is required to assess projects that may have potential impacts during construction and/or operation and may need measures to mitigate these impacts. The TPAP is regulated by the Ministry of Environment, Conservation and Parks (MECP), and includes a stakeholder consultation and review process before proceeding to the next phase of a detailed design or implementation. Below you will find information on Metrolinx projects currently in the TPAP phase, and those that have undergone a TPAP.
In 2003, the Ministry of the Environment approved the GO Transit Class EA Document (see below), which focused on transit projects common to GO Transit, and allowed projects to proceed effectively and efficiently to meet the growing service demands.
In 2008, the province of Ontario passed Regulation 231/08, Transit Projects and Metrolinx Undertakings, in order to streamline all transit projects identified as being a priority in the province.
GO Transit Class Environmental Assessment Document, 2003 (as amended August 2005)
Transit Project Assessment Process (TPAP)
For more information please visit the Ontario Ministry of the Environment, Conservation and Park’s Environmental Assessment and Approvals Branch.
Barrie Rail Corridor Expansion
Bowmanville Expansion
| Date | Document Name | Type of Information | File Size |
|---|---|---|---|
| 2011 | Oshawa to Bowmanville Rail Service Expansion and Rail Maintenance Facility TPAP EA Study | [pdf] | 15.38 MB |
Caledonia TPAP
| Date | Document Name | Type of Information | File Size |
|---|---|---|---|
| 2016 | Main Report | [pdf] | 8.96 MB |
| 2016 | Appendix A | [pdf] | 2.45 MB |
| 2016 | Appendix B | [pdf] | 8.22 MB |
| 2016 | Appendix C | [pdf] | 2.47 MB |
| 2016 | Appendix D | [pdf] | 3.7 MB |
| 2016 | Appendix E1 | [pdf] | 5.31 MB |
| 2016 | Appendix E2 | [pdf] | 3.2 MB |
| 2016 | Appendix E3 | [pdf] | 3.1 MB |
| 2016 | Appendix F | [pdf] | 1.47 MB |
| 2016 | Appendix G | [pdf] | 3.82 MB |
| 2016 | Appendix H | [pdf] | 3.69 MB |
| 2016 | Appendix I | [pdf] | 1.3 MB |
| 2016 | Appendix J | [pdf] | 7.2 MB |
| 2016 | Appendix K | [pdf] | 19.12 MB |
| 2016 | Appendix L | [pdf] | 1.5 MB |
| 2016 | Appendix M | [pdf] | 750 KB |
| 2016 | Appendix N | [pdf] | 47.8 KB |
| 2016 | Appendix O | [pdf] | 44.29 MB |
Eglinton Crosstown West Extension
| Date | Document Name | Type of Information | File Size |
|---|---|---|---|
| 2020 | EPR Addendum | [pdf] | 12.2 MB |
| 2020 | Appendix A (Design Plates) | [pdf] | 21.7 MB |
| 2020 | Appendix B (Natural Environment Summary Report) | [pdf] | 26.1 MB |
| 2020 | Appendix C (Air Quality Impact Assessment Report) | [pdf] | 3.6 MB |
| 2020 | Appendix D (Noise and Vibration Impact Assessment Report) | [pdf] | 34.1 MB |
| 2020 | Appendix E (Socio-Economic and Land Use Assessment Report) | [pdf] | 35.2 MB |
| 2020 | Appendix F (Stage 1-2 Archaeological Assessment) | [pdf] | 32.4 MB |
| 2020 | Appendix G (Cultural Heritage Evaluation Report Existing Conditions) | [pdf] | 13.5 MB |
| 2020 | Appendix H (Traffic Impact Assessment Memorandum) | [pdf] | 9.5 MB |
| 2020 | Appendix I (Cultural Heritage Evaluation Report – Fergy Brown Park) | [pdf] | 12.8 MB |
| 2020 | Appendix J (Cultural Heritage Evaluation Report – Mary Reid House) | [pdf] | 7.1 MB |
| 2020 | Appendix K (Consultation Report) | [pdf] | 7.9 MB |
Electrification
Kitchener Corridor
| Date | Document Name | Type of Information | File Size |
|---|---|---|---|
| 2009 | Georgetown to Kitchener Rail Expansion Environmental Study Report | 928 KB | [pdf] |
| 2009 | Georgetown to Kitchener Rail Expansion Environmental Study Report - Volume 1 | 446 MB | [pdf] |
| 2009 | Georgetown to Kitchener Rail Expansion Environmental Study Report - Volume II | 269 MB | [pdf] |
Lincolnville Layover
LSE – Don River to Scarborough
LSE - Guildwood to Pickering
Niagara Expansion
| Date | Document Name | Type of Information | File Size |
|---|---|---|---|
| 2011 | Niagara Rail Service Expansion - Environmental Study Report (ESR) | [pdf] | 1023 KB |
| 2011 | Niagara Rail Expansion ESR Figures | [pdf] | 91.93 MB |
Scarborough Subway Extension
| Date | Document Name | Type of Information | File Size |
|---|---|---|---|
| 2020 | Notice of Updated EPR Addendum | [pdf] | 186 KB |
| 2020 | Notice of EPR Addendum | [pdf] | 136 KB |
| 2020 | Updated EPR Addendum | [pdf] | 7.82 MB |
| 2020 | Appendix A (Proposed Design Layout) | [pdf] | 5.24 MB |
| 2020 | Appendix B (Technical Reports) | [pdf] | 98.93 MB |
| 2020 | Appendix C (Project Communications and Consultation Materials) | [pdf] | 63.98 MB |
| 2020 | EPR Addendum (July 2020) | [pdf] | 7.82 MB |
| 2020 | Preliminary Design Business Case | [pdf] | 2.19 MB |
| 2017 | Environmental Project Report (2017) | [pdf] | 97.50 MB |
