History

Stoplight with green light and "no right turn on red" pictograph on overhead signal

How Right Turns on Red Became the Norm

Born out of the oil crisis of the 1970s, the practice of turning right on red lights is a uniquely American—and uniquely dangerous—custom.

October 20, 2022 - Slate

Metropolitan Detention Center, Los Angeles

Mike Davis on Life, Politics, and Mortality

The celebrated City of Quartz author speaks with the Los Angeles Times about activism, climate change, and his decision to stop cancer treatment.

July 28, 2022 - Los Angeles Times

Bike Light

The Mystique of the Bicycle

A new book illuminates the history and meaning of the bicycle in human society.

June 5, 2022 - The Atlantic

Expocenter of Ukraine

The Radical Architecture of Kyiv

Five Ukrainian urbanists discuss the buildings, parks, and neighborhoods that make Kyiv unique.

April 4, 2022 - The Atlantic

Incarcerated people work in a rock quarry, possibly Keith Quarry near Palmetto, Georgia, around 1948.

Atlanta Will Be First City to Memorialize Convict Labor

Two monuments coming to Atlanta reckon with the city's history of using incarcerated laborers.

January 18, 2022 - Next City

William Penn

'Demodelphia' Hiring More Preservationists

To protect more historic properties from rampant demolition, Philadelphia is staffing up its historic preservation department.

December 20, 2021 - WHYY

Suburban Pittsburgh

What Is White Flight?

'White flight' refers to the exodus of white Americans from central cities to suburbs in the early and mid-20 century, a phenomenon which led to declining tax revenue and business closures that created lasting damage to urban neighborhoods.

October 14, 2021 - Diana Ionescu

Robert Moses at the ribbon-cutting for the Verrazano-Narrows Bridge

Who Is Robert Moses?

Known to some as the 'master builder' and to others as a villain in the history of New York City's development, Robert Moses was an influential and controversial city official who guided the construction of hundreds of projects in the mid-20th century.

September 22, 2021 - Diana Ionescu

Plan Voisin

Op-Ed: Utopian Thinking Poses Continued Dangers for Urbanists

Charles Wolfe calls attention to similarities between contemporary urbanism and yesterday's debunked utopias. The two may differ in substance, but both tend toward a certain level of dogma that isn't necessarily helpful on the ground.

October 30, 2018 - Public Square: A CNU Journal

Little Rock 1871

Mapped: Every Building in the United States

Using data from Microsoft, the New York Times has published an online map showing the placement of every building in the country, in a simple black and white format.

October 12, 2018 - The New York Times

Society Hill Philadelphia

Philadelphia Gentrification: A Historical Perspective

Gentrified in the 1960s during the height of urban renewal, Society Hill is a historical precedent as Philadelphia confronts present-day gentrification.

April 3, 2018 - PlanPhilly

Washington D.C. Row Houses

Is Washington D.C. Preserving Buildings or Hoarding Them?

A piecemeal, reactive approach to historic preservation in the capital may burden the future with too many buildings of "middling merit."

January 29, 2018 - Greater Greater Washington

Baltimore Rowhouses

Baltimore Confronts Underinvestment in Communities of Color

As part of an interdepartmental effort, the city's planning department is embedding an explicit equity lens into how it considers the distribution of civic resources.

November 29, 2017 - Next City

Hong Kong Towers

The Pros and Cons of Concrete

A versatile building material with a long pedigree, concrete also has associations with ugliness and totalitarianism. Its reinforced variety, widely used today, can conceal a costly flaw.

September 9, 2017 - CityLab

Homes

What Happened When Arlington Cut Out the 'Missing Middle'

In Arlington, restricting density to preserve neighborhood character isn't new. A rowhouse ban in 1938 may be one factor behind today's steep prices and gentrification.

June 17, 2017 - Greater Greater Washington

Changing Miami

Sixty years of highway construction has significantly changed Miami's development patterns.

November 4, 2016 - Modern Cities

New York City Zoning Map

Reexamining the Origins of Zoning

According to Seymour Toll's 1969 book, New York City's 1916 zoning code was less a civic-minded project than an attempt to protect elite retail districts from the riff-raff. The ramifications for American zoning at large are significant.

July 7, 2016 - PlanPhilly

Georgetown

What Separates Georgetown From the Rest of D.C.?

Georgetown's grid of small blocks is starkly different from the L'Enfant-designed city that surrounds it.

June 13, 2016 - Greater Greater Washington

Family Farm

The 'Myth' of Family Farms

Historian Gabriel Rosenberg challenges romanticism in the history of family farms in the US.

May 8, 2016 - Boston Globe

Historic London

Friday Eye Candy: Historic London Visualized

Historic London collects panoramic views of modern London streets with historic photos transposed over them. Most of the views date from the first two decades of the 20th century.

April 29, 2016 - Historic London

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.

Top Books

An annual review of books related to planning.

Top Schools

The definitive ranking of graduate planning programs.

100 Most Influential Urbanists

The who's who of urbanism, according to Planetizen readers.

Urban Planning Creators You Should Know

A short list of voices on social, video, and podcasting platforms.