Thread: Solving the mystery behind the stoplight sensor
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Old 10-01-12 | 10:30 AM
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cyccommute
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Originally Posted by PatrickGSR94
Around here the saw cuts in the pavement are usually just filled with black tar or sealant. Is that what you're seeing? I have NEVER seen stop lights with detector loops that were paved over with no visible cuts.
No. After a resurfacing, the cuts are buried. But over the saw cuts, the pavement is supported well so cracks develop. They are big cracks but if you see linear cracks of roughly a car's length, that the old saw cut.
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