The concept of 'emergence', in science refers to the way complex systems and patterns arise among groups without planned organization. Emergence is now being applied in interesting ways to study urban areas that evolved spontaneously.
The lasting relevance of Jane Jacobs' Death and Life of Great American Cities lies not in its description of life on the block, but on the scientific prescriptions of its final chapter. Jacobs was a pioneer of a new scientific paradigm, emergence and complexity science, which in the last decade has produced two scientific treatises of enormous consequences: A New Kind of Science by mathematician and computer scientist Stephen Wolfram, and The Nature of Order by architect and physicist Christopher Alexander. This new science helps explain why the modernist designed city is less sustainable than the spontaneously evolved city.
Thanks to Mathieu Helie
FULL STORY: The Journey to Emergence
The Lessons Jane Jacobs and Christopher Alexander Still Have to Teach
Robert Steuteville reviews Cities Alive, by Michael Mehaffy, describing the newly released book as "an important analysis for urbanism."
Why Christopher Alexander Still Matters
The author of "A Pattern Language" and "Notes on the Synthesis of Form" had an outsize influence far beyond architecture and urbanism—and still does.
Christopher Alexander, Influential Author of "A Pattern Language," Passes Away at 85
Christopher Alexander died on March 17, leaving behind a towering legacy of influence on the fields of architecture, planning, and urban design.
Planetizen Federal Action Tracker
A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.
San Francisco's School District Spent $105M To Build Affordable Housing for Teachers — And That's Just the Beginning
SFUSD joins a growing list of school districts using their land holdings to address housing affordability challenges faced by their own employees.
The Tiny, Adorable $7,000 Car Turning Japan Onto EVs
The single seat Mibot charges from a regular plug as quickly as an iPad, and is about half the price of an average EV.
San Diego Votes to Rein in “Towering” ADUs
City council voted to limit the number of units in accessory buildings to six — after confronting backyard developments of up to 100 units behind a single family home.
Texas Legislature’s Surprising Pro-Housing Swing
Smaller homes on smaller lots, office to apartment conversions, and 40% less say for NIMBYs, vote state lawmakers.
Even Edmonton Wants Single Staircase Buildings
Canada's second most affordable major city joins those angling to nix the requirement for two staircases in multi-family buildings.
Urban Design for Planners 1: Software Tools
This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.
Planning for Universal Design
Learn the tools for implementing Universal Design in planning regulations.
Borough of Carlisle
Smith Gee Studio
City of Camden Redevelopment Agency
City of Astoria
Transportation Research & Education Center (TREC) at Portland State University
City of Camden Redevelopment Agency
Municipality of Princeton (NJ)