Curious Louisville: What Causes Traffic Signals To Go Out?
Oct 02, 2018•7 min•Ep. 28
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Episode description
Traffic signals: you barely notice them until they’re not working.
But what actually causes them to malfunction?
That's what a Curious Louisville listener wanted know; As WFPL's Amina Elahi found out
the culprit is often power, or -- more accurately -- the lack of it. Here's more:
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