Definition
The transit decision is the choice every growing city eventually makes between investing in public transit (rail, subway, bus rapid transit) and in automobile infrastructure (highways, parking, ring roads) as the primary means of moving people. It is treated, here, as a single archetypal decision because the two paths are largely incompatible at scale — and because the choice, once made and capital is committed, is almost impossible to reverse for fifty years.
Postwar New York is the case study. With federal money flowing toward highways and Moses controlling the local pipeline, the city locked in the automobile path. The transit alternatives Moses refused to fund or build remained unbuilt — many of them are still unbuilt.
Why it matters
How it works
Choosing between transit and automobile infrastructure is more than a technical calculation. Each path requires a different land-use pattern, different funding mechanisms, different operating institutions, and a different political coalition. Once a city has built thirty miles of urban highway and rebuilt its commercial corridors around the parking those highways imply, the same money cannot easily build a subway — because the densities that justify transit are no longer there.
The asymmetry between the two paths is severe. Highways can be retrofitted onto a city in a generation; subways require land that, once built over, is gone. This is why early commitments to one path are so consequential, and why the Moses-era transit decisions in New York are still felt in 2026 commute times.