The City of Toronto is leading Phases 3-4 of the Downsview Major Streets Environmental Assessment (EA) study to determine the design of four new major streets (two east-west and two north-south), two rail underpasses and other related infrastructure to connect the new and surrounding communities to the street networks.
The EA Study is generally bounded by Keele Street, Sheppard Avenue West, Wilson Heights Boulevard, and Wilson Avenue. The site includes the Downsview redevelopment area (including former airport and military lands), Downsview Park, three TTC subway stations, one GO Transit station, and the GO Transit Barrie Line.
The Downsview Major Streets Phases 3-4 EA is developing designs for the following:
Street design options were developed and evaluated based on City and Downsview Secondary Plan policies and objectives, traffic and stormwater modelling, anticipated pedestrian and cycling volumes, anticipated land uses and other requirements.
The recommended designs for major streets include:
This Study follows the Municipal Class Environmental Assessment process which promotes good environmental planning by determining and managing the potential effects of a project prior to implementation. The EA process includes identifying the problem or opportunity to be addressed, developing and evaluating a range of alternative designs, providing opportunities for public input, and identifying a preferred design for each major street.
The Study follows the recommendations of the Downsview Secondary Plan and Master Environmental Servicing Plan (Phases 1-2 EA) and is being coordinated with related area projects, including ongoing Downsview Area District Planning and related development applications, the Downsview Community Development Plan, RapidTO Surface Transit Network, York University & Downsview Cycling Connections, and the Yorkdale Transportation Master Plan.
Public Consultation is taking place over two stages: Stage 1 took place in 2025 and presented recommendations for the Dufferin Street Extension alignment at Wilson Avenue, Transit Road and Billy Bishop Way Extension alignments at Wilson Avenue, and the location of north-south dedicated bus lanes. Stage 2 is taking place in 2026 and will present the recommended major street designs.
Stage #2 Public Consultation will present recommended designs for all major streets.
The Virtual Public Meeting will include a presentation of all streets, followed by a Question and Answer period. Please note, this meeting will not address the Taxiway West, Downsview West, or Wilson Districts, Rogers Stadium, existing traffic and noise, or other area projects
Date: Monday, June 22, 2026
Time: 6:30 to 8:00 p.m.
Register to attend the virtual meeting
To join by phone (audio only) call 416-915-6530 and enter access code 2334 120 4103 and attendee ID: 2026
Learn more about participating in City of Toronto virtual engagement events.
Webex supports screen readers and provides several accessibility features. If you require other disability-related accommodation to participate in this meeting, please contact us one week before the meeting.
This in-person meeting will provide local Ancaster residents with the opportunity to learn how the recommended design of the Dufferin Street Extension will relate to their neighbourhood. Please note, this meeting will not address the Taxiway West, Downsview West, or Wilson Districts, Rogers Stadium, existing traffic and noise, or other area projects
Date: Thursday, June 18, 2026
Time: Drop-in 6-8:30 p.m. Presentation at 6:30 p.m.
Location: Ancaster Community Centre (41 Ancaster Road)*
*Access to the meeting is wheelchair/mobility aid accessible. If you require other disability-related accommodation to participate in the meeting, please contact us one week before the event.
Primary Information (Virtual Public Meeting Slides):
Interested in seeing more information on how street design recommendations were made? Please see the Street Design Evaluation Technical Summaries:
Complete the online survey before July 8, 2026.
Contact us to request a printed copy of the survey.
This stage of the study presented recommendations on the Dufferin Street Extension alignment at Wilson Avenue, Transit Road and Billy Bishop Way Extension alignments at Wilson Avenue, and the location of north-south dedicated bus lanes.
Stage #1 comment period ended on July 8, 2025. The study received input from over 270 community members. Read the Stage #1 Public Consultation Report.
While we aim to provide fully accessible content, there is no translation or text alternative available for some of the content on this page. If you require translation, alternate formats or need assistance understanding our any other content, please contact us at 416-338-2830 or DownsviewEA@toronto.ca
More information will be added to this webpage and sent to the project email list in advance of each consultation.
Public feedback, along with technical considerations and City policies and guidelines, will be considered in staff recommendations and City Council decisions.
In May 2024, Toronto City Council (see Item 2024.PH12.1) adopted the Update Downsview Phases 1-2 Environmental Assessment (EA) Study, also known as the Master Environmental Servicing Plan (MESP). The MESP recommended the general location and requirements for the preferred transportation network and municipal servicing infrastructure (water, sanitary and stormwater) to support the existing and future needs of the Downsview redevelopment area.
Some of the infrastructure identified through the MESP will be further developed through the ongoing Downsview Area District Planning process, including local and collector streets and active transportation bridges.
Major transportation and servicing infrastructure requires further development through the Phase 3-4 EA Study.
Chapters 3 and 15 of the MESP have Been Updated
The 2024 Master Environmental Servicing Plan (MESP) has been updated in response to comments provided by the Ministry of Citizenship and Multiculturalism during the 30-day public review period, which commenced on June 4, 2024, and ended on July 4, 2024. In addition, Chapter 15 of the MESP has been updated to include additional text assessing the sewer capacity of the Maryport sewers.
Please refer to the Errata for further details.
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City Planning collects your personal email address under the legal authority of the Planning Act, section 17(15); Item 2024.EC12.2, City Council Decision 4 and 7, as confirmed by the City of Toronto By-law 527-2024; Item 2024.PH12.1, City Council Decision 18, as confirmed by the City of Toronto By-law 527-2024; and Item 2021.CC28.10, City Council Decision 5 as confirmed by the City of Toronto By-law 60-2021. The information will be used to provide communications about the Update Downsview project, and associated Environmental Assessment Phases 3 and 4 being led by Transportation Services; including updates, consultation materials and opportunities, project milestones, and Council and Committee decisions. Questions about this collection can be directed to the Project Director, Strategic Initiatives, Policy and Analysis, City Planning, Metro Hall, 22nd Floor, 55 John Street, Toronto, Ontario, M5V 3C6 or by telephone at 416-392-3078. [June 6, 2025 10:30am]