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 the middle of the 2000s, the designers at creative consultancy Landor installed Adobe Photoshop on their computers and started using it. General manager Antonio Marazza tells author David Sax:
“Overnight, the quality of their designs seemed to decline. After a few months of this, Landor’s Milan office gave all their designers Moleskine notebooks, and banned the use of Photoshop during the first week’s work on a project. The idea was to let their initial ideas freely blossom on paper, without the inherent bias of the software, before transferring them to the computer later for fine-tuning. It was so successful, this policy remains in place today.”