FUTURE
MISSISSAUGA

AN INDEPENDENT EXPLORATION

A subway to
City Centre?

What could a Line 2 connection to downtown Mississauga look like?

Bonnie Crombie’s September 24, 2026 campaign proposal calls for a new business case. This is my independent visual exploration.

Illustrative ideaNot an approved route

THE ORIGINAL TTC STUDY · AUGUST 2001

From Line 2 to City Centre.

The TTC studied this connection as option D3. It was screened out at the time. Today’s campaign proposal calls for a new business case; this historical map is not an approved or selected route.

Original 2001 TTC Rapid Transit Expansion Study Exhibit ES-15. Option D3 connects Kipling to Mississauga City Centre along the broad Milton rail corridor. The map is stamped screened from further consideration.
Rapid Transit Expansion Study · Exhibit ES-15The original map, with its study outcome preserved. Select the image to inspect it at full size.
Read the original report

MY INDEPENDENT ILLUSTRATION

Explore the connection in 3D.

Compare three exploratory corridors in the same city model. Choose a route below; each is my illustration, separate from the historical TTC map above.

Building the city view…

Via Sherway + Dundas
Whole connection · City Centre to KiplingDrag to orbit · shift-drag to pan · scroll to zoom

My original sketch through Sherway and Dundas, then north from Cooksville to City Centre.

Basis and open questions ↗

All three dashed purple corridors are exploratory sketches, not engineered routes. Labels mark areas, not station sites; line height does not represent a tunnel or elevated railway. Toronto context uses the City’s 2025 building model. Green GO lines and the gold Hurontario LRT sit within the 3D scene. The LRT is under construction; route elevations are illustrative.

Explore the city atlas

Along the connection

Illustrated areas, not selected stations.

  1. KiplingExisting Line 2 terminal
  2. SherwayEastern connection
  3. DundasCorridor to examine
  4. CooksvilleGO + LRT connections
  5. City CentreDowntown destination

An independent exploration by Daniel Sultan, unaffiliated with the City, TTC, Metrolinx or any campaign. This map is not a route announcement. There is no confirmed alignment, funding or opening date for the connection illustrated here.

01Has this been considered before?

Yes. The City Centre option is shown above in the original Exhibit ES-15. It was screened out because its length and cost put it beyond short- and medium-term priorities. City staff shared public historical records that helped me trace the other options below.

Original TTC Exhibit ES-14 shows a Kipling extension through East Mall and West Mall, with a possible further extension to Dixie.

2001 TTC STUDY

A shorter extension toward Dixie.

The TTC compared western options through East Mall and West Mall, with a possible later extension to Dixie. This was a different proposal from reaching City Centre.

Read Exhibit ES-14 in the original report ↗

DUNDAS CONNECTS · JUNE 2018

A Cooksville alternative.
A decision for BRT.

Dundas Connects examined a subway alternative ending at Cooksville GO, alongside the older 1993 route toward Dixie. The adopted master plan selected bus rapid transit.

This was a separate study. It did not approve a subway to City Centre.

View the original consultation panel Read the adopted master plan

The renewed discussion has two separate steps: Toronto Council requested reporting on a potential Sherway extension in March 2024; Crombie’s September 2026 campaign proposed a new business case reaching downtown Mississauga. Neither action selects any of the routes I have drawn above.

02Why take another look now?

I think the useful question is how a growing downtown connects to the region. A fresh study could test that against today’s development and transit plans, rather than simply carrying forward a decision made decades ago.

The joined Mississauga and Toronto 3D city model with an illustrative purple corridor from City Centre through Cooksville and Sherway to Kipling.
The city model gives the idea context. The purple line is my illustration; future buildings are retained proposals and may change or never be built.

A growing downtown

Mississauga’s plans concentrate new homes, employment and activity in the downtown. That makes it worth testing how many future trips a subway could serve.

City’s downtown planning work ↗

A connected transit network

The Hazel McCallion Line creates a north–south spine. Cooksville has Milton GO. The City says its downtown bus terminal is already at capacity and is studying a mobility hub with better LRT, bus and Transitway connections.

Capacity and connection study ↗

Trips across the boundary

A Line 2 extension could connect Mississauga destinations directly to Toronto’s subway. Its travel-time and transfer benefits should be compared with Dundas BRT and better GO service.

Dundas BRT project ↗

What a new study needs to test

A business case still needs to compare ridership, cost, travel time, construction impacts and alternatives. It must also test the actual route, station locations and transfers. This model cannot answer those questions on its own.

Read the illustration’s scope and assumptions
03Read the sources and historical documents

A campaign promise, a study option and an adopted project are different things. These are the records behind the illustration.

Sources reviewed September 26, 2026

The current discussion

  1. Bonnie Crombie: Mississauga Moves 2.0Campaign announcement, September 24, 2026. Proposes a first-year business case; does not approve construction.
  2. The campaign’s detailed transit planPages 2–3 leave the route, stations, terminus and construction method to a proposed business case.
  3. Toronto Council’s direction on a possible Sherway extensionMarch 20–21, 2024, recommendation 7. A request for further reporting, not a Mississauga subway approval.

Earlier studies and decisions

  1. TTC Rapid Transit Expansion Study: western options and City CentreAugust 2001 executive summary, section 7.4.5 and Exhibits ES-14 / ES-15. Original TTC document preserved by Transit Toronto.
  2. TTC Board report: screening the expansion optionsAugust 29, 2001. Study context and the screening process.
  3. City of Mississauga: Historical Background on Rapid TransitFebruary 18, 2015 report, page 5. Reviews the earlier western subway studies and municipal decisions.
  4. Dundas Connects: the subway alternatives shown during consultationPhase 2, Part 2, PDF page 3. The original panel compares the Cooksville subway alternative with the earlier route toward Dixie.
  5. Dundas Connects: the adopted master planEndorsed June 2018. Selected BRT for the corridor.

What has changed around the corridor

  1. Downtown Core planning chapterApril 2025 document. Mixed-use growth and transit connections; planning context, not proof of subway demand.
  2. Downtown Mobility Hub and Transitway ConnectionCity of Mississauga. Environmental assessment and preliminary design, with public consultation in June 2026.
  3. Mobility Hub consultation: capacity and connectionsJune 4, 2026 presentation, pages 4 and 7. The capacity statement concerns the bus terminal; it is not a subway ridership forecast.
  4. GO Transit route dataOfficial train routes provide the green service lines, including the Milton connection through Kipling. Route sources and model limits.
  5. Hazel McCallion LineMetrolinx’s LRT project and its regional transit connections.
  6. Dundas BRTA separate current project. This subway illustration does not replace it.
  7. Building Dundas BRT: current City implementation pageThe City says the construction schedule is under development. This is distinct from the older consultation alternatives.

The Toronto 3D context

  1. City of Toronto: 3D Massing, 2025 editionMunicipal building shapes extend the scene through Sherway to Kipling. Source-date context, rather than a survey of every current building.
  2. Model sources and alignment notesData coverage, ground registration and limitations. Contains information licensed under the Open Government Licence – Toronto.

The historical reports supplied through City correspondence were used to check the record. Private messages, contact information and emailed newspaper clippings are not published here.

Download the annotated source list