Quote:
Originally Posted by aberdeen5698
That almost makes me wonder if they're somehow sensing conditions like visibility, temperature and road surfaces and automating the speed limit updates...
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They are. Next time you go over the Coq summit there's a pole with an array of optical, laser and temperature sensors. There's likely more in the road and the setup is repeated on other poles up and down the coridoor. Some of the other routes have them as well for reporting road conditions online but the system feeds back into the signage to adjust the speed limit for the observed conditions.
CFJC