Canon · Early 20th Century & the Modern Movement (1900–1945)

Regional Plan of New York & Its Environs

1929 · United States · North America · Regional & polycentric planning · Planned by Committee on the Regional Plan of New York and Its Environs (Russell Sage Foundation) — Thomas Adams, Frederick Law Olmsted Jr.
Perry's Neighbourhood Unit diagram from the 1929 Regional Plan of New York and Its Environs — the foundational planning scheme for organising residential districts around a central school and bounded
Perry's Neighbourhood Unit diagram from the 1929 Regional Plan of New York and Its Environs — the foundational planning scheme for organising residential districts around a central school and bounded · public-domain

Core idea

Highways, parkways, centers, open space

Why it matters

First major US metropolitan regional plan

Description

The 1929 Regional Plan of New York and Its Environs was the first comprehensive plan for an entire metropolitan region, coordinating highways, transit, parks, and land use across hundreds of municipalities in three states, treating the sprawling metropolis as a single planning object.

Significance

The RPNY invented modern metropolitan regional planning, establishing the idea that the true unit of planning is the region, not the city. Its influence on highways and decentralization shaped — for better and worse — the American metropolis.

What became of it

Largely realised over subsequent decades, with much of the highway, parkway and open-space network closely following the plan's proposals; by the early 1960s most first-plan recommendations were implemented, the major exception being transit connections.

Critique

It prioritised roads and parkways over public transit, contributing to a region where the highway network expanded while transit shrank.

What shaped it

Plans it influenced

Sources

Open it on the interactive timeline →
hub.toekom.st — History of Urbanism · an interactive timeline of 850 planned cities across 6,000 years.