99% Invisible
99% Invisible

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

Mar 24, 2026 · 28m

<p>What the world's most advanced traffic system can—and can't—do for the city that invented gridlock.</p> <p>What infrastructure mystery keeps you up at night? Submit your Service Request by recording a voice memo with your question and emailing it to <a href="mailto:servicerequest@99pi.org" rel="noopener noreferrer">servicerequest@99pi.org</a>.</p> <p><a href="https://99percentinvisible.org/sr" target="_blank" rel="noopener noreferrer">Service Request</a> is a production of <a href="https://99percentinvisible.org/" target="_blank" rel="noopener noreferrer">99% Invisible</a> and <a href="https://www.campsidemedia.com/" target="_blank" rel="noopener noreferrer">Campside Media</a>.</p> <p><p>Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and …

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