Pavement sensors help Cranberry public works officials keep track of road conditions
You may drive over a road in Cranberry and not realize the very innovative technology being used there. Believe it or not, ...
Hackaday7y
Intro To The North American Traffic Signal
Traffic lights are so ubiquitous that we hardly give ... and provided for magnetometers or pressure switches installed in the pavement to detect the presence of vehicles and alter the timing ...