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Suffolk County Closed Loop Signal



Beneficiary:
(November – December 2003) (April – June 2004)
ATR and Manual turning movements counts
Company Name: Greenman Pedersen, Inc.
325 West Main Street
Babylon, NY 11702
Tel.: (516) 587-5060
Reference: Mr. Paul Lindgren

Cost: $74,810


Inductive loop detector. An inductive loop is simply a coil of wire embedded in the road's surface.
The traffic signal system constantly tests the inductance of the loop in the road, and when the inductance rises to certain threshold, a vehicle is detected and traffic signal system will allocate green time accordingly.
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