
Subway-spine centers strategy
Polycentric transit urbanism model
The 1966 plan for Metropolitan Toronto, prepared by the Metro Toronto Planning Board, set a development framework for the federated metropolis created in 1953. Its central strategy tied urban growth to the new subway system, promoting a hierarchy of suburban centres along transit spines, coordinated arterial and expressway networks, and apartment concentrations near stations rather than uniform low-density sprawl.
The plan is an early North American articulation of polycentric, transit-oriented metropolitan structure, at a moment when most of the continent was planning around the car. It underpinned Toronto's distinctive pattern of high-rise clusters along subway lines and subcentres such as North York, and it is frequently cited as a precedent for later transit-oriented development and regional centres policies.