Service Request #2: Why Is This Red Light So Damn Long?

2026-03-24

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What the world's most advanced traffic system can—and can't—do for the city that invented gridlock. What infrastructure mystery keeps you up at night? Submit your Service Request by recording a voice memo with your question and emailing it to servicerequest@99pi.org. Service Request is a production of 99% Invisible and Campside Media. Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. Start a free trial now on Apple Podcasts or by visi...

What the world's most advanced traffic system can—and can't—do for the city that invented gridlock.

What infrastructure mystery keeps you up at night? Submit your Service Request by recording a voice memo with your question and emailing it to servicerequest@99pi.org.

Service Request is a production of 99% Invisible and Campside Media.

Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early.

Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus.

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