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.
Black Line Volume, String Line-Light Volume, Corridor String Piece, Line Rectangle
"The resultant black rectangle was not what you "looked at" – there was actually nothing to focus on – but soon it brought the space into focus with a distinct visual snap. From inside, the light in the area seemed different, more substantial, and the wall color began to shift ambiguously. From outside the area, the tape seemed to lift the plane of the floor upward in your field of vision, and it also made the room seem wider and shallower than it really was." — Roberta Smith