Using an Inductive Loop for Counting Vehicles

An inductive loop is a square of wire embedded into or under the road. The loop utilises the principle that a magnetic field introduced near an electrical conductor causes an electrical current to be induced. In the case of traffic monitoring, a large metal vehicle acts as the magnetic field and the inductive loop as the electrical conductor. A device at the roadside records the signals generated.

The road has to be closed to install the inductive loop. Although they can perform some automatic classification of vehicles, they do not do well in high congestion.

An alternative method is vehicle counting and classification using CCTV and ai-powered software.

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Retail Sensing have nearly 50 years experience in measurement and control. We have 15000 video counting systems installed in over 40 countries.



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