As population growth has spread jobs, housing, and services east and west of the city core, this imbalance has become increasingly costly. Workers traveling between Durham, York, Peel, and Halton often have no realistic transit option. Driving becomes the default, congestion worsens, and productivity suffers.

The housing crisis cannot be solved by supply alone, and the transit crisis cannot be solved by tracks alone. The GTA Crosstown proposes solving both — together.

The GTA Crosstown draws lessons from these global precedents while responding to local realities. It recognizes that the GTA is no longer a single-centre region and that future growth depends on connectivity across municipalities, not just into downtown Toronto.