My article “Off the Grid… and Back Again? The Recent Evolution of American Street Network Planning and Design” has been published by the Journal of the American Planning Association and won the 2020 Stough-Johansson Springer Award for best paper. It identifies recent nationwide trends in American street network design, measuring how urban planners abandoned the grid and embraced sprawl over the 20th century, but since 2000 these trends have rebounded, shifting back toward historical design patterns.
This study measures the entropy (or disordered-ness) of street bearings in each street network, along with each city’s typical street segment length, average circuity, average node degree, and the network’s proportions of four-way intersections and dead-ends. It also develops a new indicator of orientation-order that quantifies how a city’s street network follows the geometric ordering logic of a single grid. These indicators, taken in concert, reveal the extent and nuance of the grid.
In 1964, the historian Bernard Rudofsky curated a show at MoMA called Architecture Without Architects, celebrating the formal qualities of a range of traditional building practices drawn from around the world.
Setting aside the endlessly troubled implications of the Western gaze on “primitive” cultures, the show had the very constructive impacts of encouraging formal diversity at a time when mainstream architecture had grown desperately, myopically monochromatic and of suggesting that “non-architects” were capable not only of making good judgments about their environments but of actually taking the lead in creating them.