Curious Gulf Coast
Blue Light Above Traffic Signals
Season 2 Episode 205 | 1m 30sVideo has Closed Captions
What is the purpose of the blue lights mounted above intersection signals?
Have you noticed the blue lights mounted above intersection signals? What is their purpose and how do they operate?
Curious Gulf Coast
Blue Light Above Traffic Signals
Season 2 Episode 205 | 1m 30sVideo has Closed Captions
Have you noticed the blue lights mounted above intersection signals? What is their purpose and how do they operate?
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