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.
Taking notes has always helped me zero in on the interesting questions.
In taking field notes, the way to find these peculiarities is to keep track of as many observations that may not appear at the time to be relevant at all.
I’ve been keeping journals of one sort or another since I was a teenager, and if there is one thing I can now confidently say about all this scribbling and note-taking, it is that if it wasn’t written down, it didn’t happen. The more I wrote the more that did happen, because all this process stirs up ideas. Stopping to sit and write costs time and energy, and some biologists feel that it should be discouraged.
Note-taking helped transform me from a young boy on barefoot runs who passively observed the tangled bank of the Maine woods into a naturalist-scientist who is an active participant in unraveling the mysteries of the natural world.