Los Angeles International Airport, one of the world’s busiest, served over 76 million passengers in 2024. But its design causes notorious traffic bottlenecks. Now, with $30 billion in upgrades underway, will LAX’s modernization solve its congestion problem—especially with major events like the 2028 Olympics on the horizon?

WSJ spoke with an airport transit expert, who explains what it would take to fix LAX.

Chapters:
0:00 LAX’s problem
0:51 Design and bottlenecks
2:27 Move people efficiently around the horseshoe
3:15 Remove cars from the horseshoe
4:44 Airside capacity

Pro Perfected
Experts in engineering and design break down a ubiquitous problem, examining how the world is built and what can make it better.

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