Item - 2025.TTC10.4

The TTC Board:

1. Received this report for information.

2. Authorized that the information in Confidential Attachment 1 remain confidential as it contains information explicitly supplied in confidence to the TTC by a Crown agency, Metrolinx.

As a leading transit operator carrying close to 420 million trips in 2024 and with more than 100 years of institutional knowledge, the TTC is contributing its considerable expertise to expand the public transit network, while placing TTC customers at the centre of all its services.

The TTC is working across operations, maintenance, engineering, communications, and planning disciplines with the City of Toronto and Metrolinx to develop the expanded services for Toronto’s transit system: an integrated, accessible, safe transit network seamlessly interfacing with the existing network and connecting TTC customers with all of the mobility options within the city and neighbouring municipalities.

The highlights of this Transit Network Expansion Update report include:

• Line 5 Eglinton – Metrolinx has initiated the Revenue Service Demonstration (RSD) in October 2025.
• Line 6 Finch West – Metrolinx has initiated the RSD in September 2025.
• Line 2 Extension – The TTC is actively collaborating with Metrolinx on the Scarborough Subway Extension (SSE). The SSE Automatic Train Control option has been included as part of the ongoing Line 2 ATC procurement. This will provide an opportunity to maximize the benefit from the ATC system and the New Subway Trains for the entire Line 2 service on the opening day of SSE and beyond.
• Line 1 Extension and Capacity Enhancement – The TTC and the City are updating the future ridership demand model for the transit network up to the 2051 horizon year. Meanwhile, Metrolinx is delivering 5 new stations for the Yonge North Subway Extension (YNSE), providing new stations in York Region across the following lower-tier municipalities: Vaughan, Markham and Richmond Hill. Investment is required in future capacity enhancement of Line 1 through additional growth trains and a train maintenance and storage facility. There are ongoing discussions between the TTC and Metrolinx to refine the capacity requirements and interdependencies for both the new fleet and additional facilities for the future state of the extended Line 1.
• Ontario Line – Subject to the next phase of the New Deal negotiation between the City and the Province, the TTC continues to work with Metrolinx to confirm the details of the TTC’s roles and responsibilities for the operations of the Ontario Line.
• Eglinton Crosstown West Extension (ECWE) - In August 2025, Metrolinx selected Trillium Rail Partners to deliver the Stations, Rail and Systems (SRS) package for the Eglinton Crosstown West Extension under a Progressive Design Build (PDB) procurement model. The TTC will continue to work with Metrolinx to ensure interoperability between Line 5 Eglinton and ECWE.
• Eglinton East LRT (EELRT) – The EELRT is one of the City's Priority Transit Projects. The TTC is supporting the City by providing planning, engineering, vehicle, operations, and maintenance expertise for the project. Please note that the TTC is working closely with the City and other stakeholders to refine the project scope as well as the roles and responsibilities for this project.
• Waterfront East LRT (WELRT) – The WELRT is another of the City’s Priority Transit Projects. The TTC led the planning and design work for Segment 1 of this project (Union Station to Queens Quay) and is supporting the City and Waterfront Toronto for the ongoing design work for Segment 2 and Segment 3.