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February 28, 2013
WSDOT tries its luck with wireless puck
Engineers hope to save money by replacing hard-wired looped sensors in pavements with puck sensors.
By LUCY BODILLY
Special to the Journal
It takes about 15 minutes to install a wireless puck sensor.
WSDOT is testing 17 pucks on an I-5 on-ramp at Northgate.
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