Portland has implemented one of the most sweeping commitments to traffic safety of any city in the United States: 20 mph speed limits over the vast majority of the city's streets.

"To improve traffic safety and make streets more welcoming for walking and biking, Portland will lower speed limits on nearly all of its residential streets to 20 miles per hour, in most cases replacing a 25 mph limit," reports Angie Schmitt.
According to Schmitt, the 70 percent of the city's collected miles of streets will now be subject to the 20 mph speed limit. Portland, like many other cities around the country, needed permission from the State legislature to lower its speed limits. Once it had that permission, the Portland City Council approved the lower speed limits unanimously.
The action by the Portland City Council is perhaps the most sweeping of any similar efforts around the country, though Portland is not the first city in the country or in the world to lower speed limits in the name of traffic safety. For more background on the movement, here is a list of articles on the subject:
FULL STORY: Portland Will Reduce Residential Speed Limits to 20 MPH

New York Governor Advances Housing Plan Amid Stiff Suburban Opposition
Governor Kathy Hochul’s ambitious proposal to create more housing has once again run into a brick wall of opposition in New York’s enormous suburbs, especially on Long Island. This year, however, the wall may have some cracks.

A Serious Critique of Congestion Costs and Induced Vehicle Travel Impacts
Some highway advocates continue to claim that roadway expansions are justified to reduce traffic congestion. That's not what the research shows. It's time to stop obsessing over congestion and instead strive for efficient accessibility.

Rethinking the Role of Parking in the American City
In cities big and small, the tide is turning against sprawling parking lots, car-centric development, and minimum parking mandates.

Mapping Sidewalks for Improved Connectivity
A new tool uses aerial image recognition to map a city’s sidewalks and crosswalks. Its developers hope it will aid in creating a more comprehensive understanding of pedestrian networks and where improvements are needed.

Long Beach Residents Oppose Proposed Homeless Services Hub Near Rail Terminus
L.A. Metro’s “end-of-the-line” policy forces people experiencing homeless off transit every night at the same time and location. A proposed hub would provide services a few stops before the end of the line in Long Beach.

The Nation's Most Advanced Secessionist Movement
Legislation supporting the Greater Idaho Movement, which would annex over half of neighboring Oregon, has advanced in the Idaho legislature.
City of Greenville
City of Greenville
Resource Assistance for Rural Environments (RARE) AmeriCorps Program
HUD's Office of Policy Development and Research
HUD's Office of Policy Development and Research
HUD's Office of Policy Development and Research
City of Spearfish
City of Lomita
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.