Think a city's road network is a result of rational planning? Well, think again. After analyzing over 300 cities -- both old and new -- scientists have discovered that cities tend to grow like organisms, and follow a similar mathematical pattern.
"Next time you are lost in an unfamiliar city, console yourself with the knowledge that the layout of its roads are probably much the same as in any other.
French and US physicists have shown that the road networks in cities evolve driven by a simple universal mechanism despite significant cultural and historical differences. The resulting patterns are much like the veins of a leaf.
Marc Barthélemy of the French Atomic Energy Commission in Bruyères-le-Châtel and Alessandro Flammini of Indiana University, US, analysed street pattern data from roughly 300 cities, including Brasilia, Cairo, Los Angeles, London, New Delhi, and Venice.
They found that cities' road patterns have a lot in common mathematically, as well as looking similar to the eye."
FULL STORY: City road networks grow like biological systems
Study: Cost of Expanding Roads Outweighs Benefits
New research shows that the economic benefits of roadbuilding projects don’t come close to exceeding most projects’ costs.
Pennsylvania Adopts State Transportation Plan
The plan addresses roads, transit, and other transportation infrastructure over the next 12 years.
Anchorage High-Speed Highway Project Met With Skepticism
The Alaska Department of Transportation and its consultants are working on a Planning and Environmental Linkages study of the Glenn-Seward Highway that bisects the middle of Anchorage, Alaska.
Seattle Legalizes Co-Living
A new state law requires all Washington cities to allow co-living facilities in areas zoned for multifamily housing.
NYC Officials Announce Broadway Pedestrianization Project
Two blocks of the marquee street will become mostly car-free public spaces.
The City of Broken Sidewalks
Can Los Angeles fix 4,000 miles of broken sidewalks before the city hosts the 2028 Olympic Games?
Study: Automobile Dependency Reduces Life Satisfaction
Automobile dependency has negative implications for wellbeing. This academic study finds that relying on a car for more than 50 percent of out-of-home travel is associated with significant reductions in life satisfaction.
San Diego School District Could Accelerate Workforce Housing Program
A proposal to build housing on five district-owned properties could yield 1,000 housing units for low- and moderate-income district employees.
Denver Transit Board Approves $1.2 Billion Budget
The 2025 budget for the Regional Transportation District is the largest in the agency’s 55-year history.
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.
Alamo Area Metropolitan Planning Organization
Village of Glen Ellyn
City of Laramie
American Planning Association, Sustainable Communities Division
HUDs Office of Policy Development and Research
City of Cambridge, Maryland
Newport County Development Council: Connect Greater Newport
Rockdale County Board of Commissioners