As you may have guessed, this kind of detector works by detecting an inductance change in a wire loop (aka coil) buried in the road. Having a car pass several inches on top of it produces such an ...

and an extensive amount of documentation is available on this if you want to try to roll out your own inductive loop vehicle detector. Of course, this isn’t the only way to detect a vehicle’s ...

Single channel loop detectors are used to identify the presence of vehicles by means of an inductive loop buried under the road. These "one chip" microprocessor-based units benefit from a detect ...