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Person stepping over hole in sidewalk.
Portland Council Tentatively Approves Sidewalk Repair Plan
RECOMMENDED
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A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

RECOMMENDED
Person in yellow safety suit and white helmet kneels to examine water samples outdoors on a lake shore.
USGS Water Science Centers Targeted for Closure

If their work is suspended, states could lose a valuable resource for monitoring, understanding, and managing water resources.

Planetizen Newswire Logo
The Planetizen Newswire is an email newsletter that gathers the most popular news and features from our website into a condensed, readable form in your inbox.
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Blogs and Features
The latest blogs written by experts in planning.
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Planopedia
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City Profiles
Explore cities through an urban planning lens.
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Guide to Graduate Urban Planning Programs 7th Edition cover
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Shop Gifts
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youtube thumbnail with Donald Trump
Learn about the impact that Project 2025's bundle of policies could have on housing in America.
youtube thumbnail with Jane Mansfield
The death of Jayne Mansfield led to changes in the trucking industry, but underride crashes continue to kill.
Crowd walking in urban street
Challenges—like climate change and housing—require an incisive understanding of planning.
Watch more on YouTube.
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Planopedia

Clear, accessible definitions for common urban planning terms.

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Complete Street

Complete Streets

Complete Streets prioritize the safety and mobility of all users instead of the speed of cars and flow of traffic. After a century of prioritizing automobile travel, the concept of complete streets offer a chance to make streets a place to be used and enjoyed rather than glimpsed through a windshield.

urban planners look at Biloxi plans

Urban Planning

Urban planning is the most common term used in the contemporary United States to describe the professional and academic field of planning, but understanding the implications of the term requires a discussion about the history of the word urban and the changing politics of planning.

Delaware

Euclidean Zoning

Euclidean zoning is responsible for the sprawling, suburban character of much of the built environment in the United States.

Zoning Code

Form-Based Codes

Form-based codes are a variety of development regulation that departs significantly from the land use control approach of most zoning codes in the United States.

New York Development

Zoning Codes

Local governments use zoning codes to define what can and cannot be built. While comprehensive plans and other kinds of plans lay out a vision for the future, zoning codes offer the legal tools to implement that vision.

Missing Middle Housing

Missing Middle Housing

One of the newest terms in the world of urban planning, Missing Middle Housing has generated a lot of attention in recent years as cities around the United States look for ways to create more housing options in a vast sea of single-family homes.

Plan Portsmouth

Land Use

Land use might seem self explanatory, but it has a very specific meaning in the context of U.S. planning history.

Granny Flat

Accessory Dwelling Units

Sometimes referred to as mother-in-law units or granny flats, accessory dwelling units (ADUs) are a hallmark of contemporary planning as jurisdictions of all sizes and histories legalize the construction of these supplementary residential units.

JR Shinkansen

High-Speed Rail

Beginning with Japan in the 1960s, more and more countries are embracing high-speed trains to streamline domestic travel. Operating at speeds often in excess of 160 mph, high-speed rail networks are now well-developed across Europe and, more recently, in China.

D.C. Comp Plan

Comprehensive Plans

The comprehensive plan, sometimes also referred to as a master plan or a general plan, is the foundational document of long-term planning and zoning in the United States.

Seattle Mixed Use Development

Mixed-Use Development

Long an urban norm, mixed-use neighborhoods fell out of favor in the United States in the automobile age as single-use zoning became common. These days, mixed-use development is back in vogue, but implementation remains a challenge.

Private Property

Eminent Domain

One of the most controversial powers defined by the Bill of Rights, eminent domain is the term used to describe the government's power to seize private property for public use.

Brooklyn Open Space

Adaptive Reuse

Key to urban revitalization or harbinger of gentrification—whichever way you look at it, adaptive reuse has been a key development type in the transformation of U.S. cities throughout the 21st century.

Public Hearing

Local Control

State preemption and local control are two of the most controversial and contested concepts in land use. Understanding when and where one or the other takes precedence is key to understanding the politics and governance of planning.

Oregon State Capitol Building

State Preemption

State preemption and local control are two of the most controversial and contested concepts in land use. Understanding when and where each one takes precedence is key to understanding the politics and governance of planning.

Image of transit oriented development around Union Station in Denver.

Transit Oriented Development

Transportation and land use are deeply connected, but decades of planning and development policy ignored the consequences of only paying attention to one side of the equation. Transit oriented development takes a more holistic approach.

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