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?
Problems playing video? | Closed Captioning Feedback
Problems playing video? | Closed Captioning Feedback
Curious Gulf Coast is a local public television program presented by WGCU-PBS
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?
Problems playing video? | Closed Captioning Feedback
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Curious Gulf Coast is a local public television program presented by WGCU-PBS