Blue flashing lights

Solved
Hello, I have been living in Strasbourg for about 2 years and I have noticed a smaller flashing BLUE light above the usual traffic lights. Who and what do these lights serve? Thank you.

4 answers

  1. We have the same in Paris, they detect a device located in the RATP buses, which flashes to indicate that a bus is approaching and gives it the green light until it has passed.
    All this is to have smoother and faster bus traffic.

    See you later!
    5
    1. On the other hand, if there is a girophare of that color... get ready to lose your driving points....;-))
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      ¤¤¤¤Spirit White¤¤¤¤
      2
      1. Hello,
        Probably a radar to adjust the traffic lights according to the flow of traffic.
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        It's better to be late in this world than early in the next one.
        0
        1. orange diamond: bus detected
          blue exclamation point: the light will turn green for the bus.
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