Shutting down the Interstate 405 corridor for two days on July 16 and 17 is akin to clipping L.A.'s mobility wings. Commuters and residents in the region are making contingency plans to circumvent heavy traffic congestion next weekend.
"If you think the 405 is gridlocked during the week, you haven't seen anything yet. My message is to stay home. Or go on vacation. Walk. Go on a bike. But do not get in your car and go anywhere near the West Side. It's going to be a mess," warns Mayor Antonio Villaraigosa in a phone interview with The New York Times.
Treating the situation as a regional disaster, city officials and transit agencies are taking measures to mitigate every foreseeable and anticipated scenario they can imagine. "Preparations for this potential traffic catastrophe have been plentiful. Hospitals are lining up hotel and dormitory rooms for employees. The Los Angeles Emergency Operations Center, a high-tech command post built to manage during a natural disaster, will be in full operation," Adam Nagourney reports.
Even Lady Gaga is in on this. Per LAPD's request, she warns her 11.4 million followers on Twitter about the imminent traffic nightmare.
The $1 billion I-405 expansion project will take 53 hours to complete.
FULL STORY: L.A. Prepares for Worst and Hopes for Best in Freeway Shutdown

Trump Administration Could Effectively End Housing Voucher Program
Federal officials are eyeing major cuts to the Section 8 program that helps millions of low-income households pay rent.

Planetizen Federal Action Tracker
A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

Ken Jennings Launches Transit Web Series
The Jeopardy champ wants you to ride public transit.

Crime Continues to Drop on Philly, San Francisco Transit Systems
SEPTA and BART both saw significant declines in violent crime in the first quarter of 2025.

How South LA Green Spaces Power Community Health and Hope
Green spaces like South L.A. Wetlands Park are helping South Los Angeles residents promote healthy lifestyles, build community, and advocate for improvements that reflect local needs in historically underserved neighborhoods.

Sacramento Plans ‘Quick-Build’ Road Safety Projects
The city wants to accelerate small-scale safety improvements that use low-cost equipment to make an impact at dangerous intersections.
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.
Heyer Gruel & Associates PA
Ada County Highway District
Institute for Housing and Urban Development Studies (IHS)
City of Grandview
Harvard GSD Executive Education
Toledo-Lucas County Plan Commissions
Salt Lake City
NYU Wagner Graduate School of Public Service