What are those blue lights above traffic signals? - Curious Gulf Coast

Have you noticed the blue lights mounted above intersection signals? Gaby Kadoo finds out what their purpose is and how they operate!

What are you Curious about? Head over to https://wgcu.org/curiousgulfcoast/ to let us know and your question could be answered in our next episode!


WGCU PBS & NPR for Southwest Florida
What are those blue lights above traffic signals? - Curious Gulf Coast
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