Infrastructure

Close-up of 10 mph speed limit sign.

Washington Passes First US ‘Shared Streets’ Law

Cities will be allowed to lower speed limits to 10 miles per hour and prioritize pedestrians on certain streets.

May 22, 2025 - The Urbanist

Traffic and old buildings in Manhattan, New York City.

USDOT Could Pull Federal Funding for New York

The federal government gave the state until May 21 to end new York City’s congestion pricing program or risk losing federal funding and project approvals.

May 22, 2025 - Smart Cities Dive

Passengers exiting the back door of a blue public bus.

Opinion: Make Buses More Like Sidewalks

Sidewalks are an intuitive, low-cost, and easily accessible mobility tool. Can local buses function in the same way?

May 21, 2025 - Fast Company

Protest

How Cities Can Support Climate Adaptation

In the face of federal cuts to climate resilience funding, a panel at ULI’s Resilience Summit offered suggestions for maintaining managed retreat and other climate adaptation programs.

May 21, 2025 - Smart Cities Dive

Banff wildlife overpass

Where the Wild Things Cross

Wildlife-vehicle collisions cost Americans over $8 billion annually. The solution can be simple — and stunning.

May 20, 2025 - Jill Robertson

Sign for Loma Alta Park in Altadena, Los Angeles County.

A Park Reborn: Resilience and Renewal in Fire-Stricken Altadena

Rebuilt in just two months after the devastating Eaton Fire, Loma Alta Park now stands as a symbol of community resilience and renewal, even as some residents hope recovery efforts will continue to support housing stability and long-term equity.

May 20, 2025 - Pasadena NOw

Deer grazing on hillside with few snow patches at Rocky Flats National Wildlife Refuge in Colorado.

New Trail Project Enhances Safety and Access to Rocky Flats National Wildlife Refuge

Jefferson County is improving safe access to Rocky Flats National Wildlife Refuge with new trails, a bridge, and signage, as part of the Rocky Mountain Greenway project, ensuring environmental safety and educating visitors about the site’s history.

May 19, 2025 - Jefferson County

People riding bike son paved greenway in Indianapolis, Indiana.

Indianapolis Advances Plans to Expand and Connect Citywide Greenway Network

Indianapolis is developing a new Greenways Strategic Implementation Plan to expand, connect, and modernize its trail system, aiming for over 250 miles of greenways that support sustainability, mobility, and community well-being.

May 19, 2025 - Indianapolis Recorder

Archway made of bikes in Knoxville, Tennessee over Tennessee River.

Knoxville Dedicates $1M to New Greenway

The proposed greenway would run along North Broadway and connect to 125 miles of existing trails.

May 18, 2025 - WATE

25mph speed limit sign with digital "Your Speed" sign below it.

Philadelphia Launches ‘Speed Slots’ Traffic Calming Pilot

The project focuses on a 1.4-mile stretch of Lincoln Drive where cars frequently drive above the posted speed limit.

May 18, 2025 - WHYY

UPS delivery cargo bike with covered front seat in New York City

NYC Delivery ‘Microhubs’ Aim to Cut Down on Truck Pollution

The hubs are designed to provide parking for large delivery trucks, which can pass on their cargo to bikes or other zero-emission vehicles.

May 18, 2025 - Smart Cities Dive

Man reaching for young girl sliding down playground slide.

Quantifying Social Infrastructure

New developments have clear rules for ensuring surrounding roads, water, and sewers can handle new users. Why not do the same for community amenities?

May 15, 2025 - Happy Cities

Banner welcoming Polish transit hub project at convention center in Berlin.

Poland Building £25B Transit Hub

The mega project will include an airport and links to high-speed rail lines.

May 15, 2025 - Express

Adults and children planting trees during Arbor Day event in Lakewood, Colorado.

Lakewood Celebrates Arbor Day and Strengthens Urban Forestry Legacy

Lakewood celebrated Arbor Day and its 43rd year as a Tree City USA community with a youth-led tree planting event at O’Kane Park, reinforcing its long-standing commitment to urban forestry and environmental education.

May 14, 2025 - City of Lakewood

Close-up of elevated planter box in sidewalk with alternating grass and concrete patches.

Grassroots Dutch Movement Replaces Pavement With Green Space

Neighbors engage in a practice known as “tegelwippen,” picking up paving stones and replacing them with permeable surfaces, often with the support of local governments.

May 14, 2025 - Reasons to Be Cheerful

Pump station with blue pipes coming out of concrete wall in Seattle, Washington.

Seattle Builds Subway-Sized Tunnel — for Stormwater

The $700 million ‘stormwater subway’ is designed to handle overflows during storms, which contain toxic runoff from roadways and vehicles.

May 13, 2025 - City Observatory

Person stepping over hole in sidewalk.

Portland Council Tentatively Approves Sidewalk Repair Plan

The proposal would address sidewalk needs in Portland’s District 1 and District 4.

May 12, 2025 - Oregon Public Broadcasting

"Radiation Zone, Keep Out" sign on wood post with red Arizona desert mesa in background

Integrating Human Rights Into Energy and Extractive Sector Transitions

Why just transition efforts must move beyond economic considerations by embedding human rights principles into business practices to ensure equitable, transparent, and accountable outcomes for affected communities and workers.

May 12, 2025 - Cambridge University Press

Two children sitting on rock sillhouetted against sky.

Reflections on Representation and Legacy in Parks and Public Service

In a personal reflection for Asian American and Pacific Islander Heritage Month, planner Clement Lau explores how cultural identity, public service, and a commitment to equity have shaped his career in parks, community planning, and sustainability.

May 12, 2025 - National Recreation and Park Association Open Space Blog

Complete Streets

How Complete Streets Stands to Lose in the FY26 ‘Skinny Budget’

The President’s proposed budget could cut key resources for active transportation, public transit, and road safety programs.

May 11, 2025 - Transportation for America

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.