Moving TTC Subway train enters a station.

The City's Executive Committee will be considering a report that details the recommended alignment for the Scarborough Subway Extension(SSE). The report will be considered at the March 7, 2017 Executive Committee Meeting.


The staff report:

  • provides an update on planning work for the SSE;
  • recommends an alignment along the McCowan corridor and a preferred bus terminal configuration;
  • outlines an analysis of procurement options for the SSE and recommends a procurement approach; and
  • seeks approval to initiate the Transit Project Assessment Process (TPAP), including submission of an Environmental Project Report (EPR) to Ontario's Minister of Environment and Climate Change.


The report can be accessed here.


Following Executive Committee's consideration of this report, it is anticipated that the report will be considered by the TTC Board on March 22nd and City Council on March 28th. The Transit Project Assessment Process (TPAP) to secure approval for the SSE under the Environmental Assessment Act will commence in Q2 2017. The TPAP will include further consultation with the public and stakeholders.




The City and the TTC are moving forward with the Scarborough Subway Extension Project Assessment. So far, we have:

Finalized the study Terms of Reference,

Finalized the Public Consultation Plan,

Finalized the Evaluation Criteria,

Documented existing conditions in the study area,

Completed a preliminary analysis of potential corridors

Developed potential alignments and station concepts for further study

In the coming months the project team will be identifying the preferred corridor, preferred alignment and station locations, determining construction methods and developing strategies to mitigate any negative impacts. There will be opportunities to provide feedback on this work online and at public meetings.


Please register for the project mailing list to ensure you are kept up-to-date about all further opportunities to provide your input.

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