
Highways, parkways, centers, open space
First major US metropolitan regional plan
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.
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.
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.
It prioritised roads and parkways over public transit, contributing to a region where the highway network expanded while transit shrank.