A new earthquake warning system is in place in the city of Los Angeles.

The Associated Press reports on the details of a new earthquake warning app available to Los Angeles County residents.
The app, called ShakeAlertLA will send an alert that could arrive before, during, or after an earthquake of at least 5.0 magnitude on the Richter scale.
The ShakeAlertLA app is based on a warning system developed by the U.S. Geological Survey. Several cities and agencies around the country already have earthquake warning systems, as do cities in Mexico and Japan, but this is the first time an earthquake warning system is available to the general public in the United States.
For more information on the new app, see also an article by Alissa Walker from August 2018.
Earthquake readiness was a big component of the "Resilient Los Angeles" plan released in March 2018 as a result of funding from the 100 Resilient Cities network, funded by the Rockefeller Foundation.
FULL STORY: Los Angeles unveils earthquake warning app

Amtrak Ramping Up Infrastructure Projects
Thanks to federal funding from the 2021 infrastructure act, the agency plans to triple its investment in infrastructure improvements and new routes in the next two years.

Ending Downtown San Francisco’s ‘Doom Loop’
A new public space project offers an ambitious vision—so why is the city implementing it at such a small scale?

Proposal Would Transform L.A.’s ‘Freeway to Nowhere’ Into Park, Housing
A never-completed freeway segment could see new life as a mixed-use development with housing, commercial space, and one of the county’s largest parks.

Tempe Historic Preservation Proposal Could Make it Harder to Build New Homes
Proposed changes to the city’s preservation ordinance would make two-thirds of the city’s housing stock eligible for preservation.

How to Measure Transit Equity
A new report highlights the need to go beyond traditional equity metrics to assess how public transit systems are serving the lowest-income and most disadvantaged riders.

Why Brand New Cities Won’t Solve Our Urban Problems
Building cities takes time and resources. Why not spend them on fixing the ones we have?
Urban3
HUD's Office of Policy Development and Research
Washington University
Mpact: Mobility, Community, Possibility
Lassen County Planning and Building Services
City of San Carlos
National Capital Planning Commission
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.