Ontario Proposed Metro Lines — Planned Subway Routes and Future Underground Expansions

Ontario planned and proposed metro lines. Future underground routes and rapid transit expansion projects before construction begins.

Ontario metro and subway lines formally proposed or in active planning: future underground corridors announced, studied or included in urban transport master plans but not yet under construction. Shows where cities plan to extend rapid transit coverage — new orbital lines connecting suburbs without routing through the city centre, extensions to areas beyond the existing network and entirely new metro systems in cities currently without subway.

Ontario has 53 proposed railway segments including 6 railway, 21 tram and 26 light rail.

  • Ontario — Metro Map
  • Ontario — Metro Under Construction
  • Ontario — Proposed Metro Lines
  • Ontario — Metro Stations Map
  • Ontario — Metro Speed Map
Proposed
Other lines
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Last update: 2026-05-11

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🇨🇦Ontario
Motorways
🚇Metro
Proposed
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