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 System A, there is no architect separate from the contractor. We are builders, simply. As builders, we have a direct feeling about construction. We feel it in our fingers, so it is down to earth. One result of this down-to-earth quality is that everything is somewhat experimental. We make experiments all the time. Sometimes we place a piece of wood this way. Another time, we may like to try it that way. Any time something new comes up in the design of a building, we are very likely to try and invent the best way of building it. This is not a great big invention. Just a simple invention, the way we might invent a way of tying a piece of string, to hold a broken toy together. It is just practical.