Jersey Barriers

Row of concrete Jersey barriers running down the middle of a multi-lane road.

‘Colorado Barrier’ Repurposes Old Tires for Road Safety

The recycled rubber barrier can protect pedestrians and people in cars on lower-speed streets.

March 12, 2025 - Equipment World

Bikeway Terrorism Was Both Foreseeable and Preventable

The horrific carnage caused by a terrorist on Halloween, killing eight cyclists and injuring 12, was preceded by a similar, though unintentional, bike fatality in 2006 on the same bikeway.

November 7, 2017 - The New York Times

Pedestrian Barriers Installed on London's Bridges Endanger Cyclists

In the wake of two terrorist attacks on London bridges that killed pedestrians, concrete barriers were installed on three crossings to prevent repeat rampages. The only problem is that they were installed in bicycle lanes.

June 7, 2017 - London Evening Standard

How Has 9/11 Changed America's Built Environment?

On this sombre anniversary, we bring you an article that was published last year by Kaid Benfield, looking at the legacy of 9/11 for community & the built environment.

September 11, 2012 - Switchboard

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.