What Are Vehicle Loops?

Vehicle detection loops, often called inductive-loop traffic detectors, can detect vehicles passing or arriving at a certain point, for instance, approaching a traffic light or in motorway traffic. An insulated, electrically conducting loop is installed in the pavement. The electronics unit transmits energy into the wire loops at varying frequencies depending on the model. The inductive-loop system behaves as a tuned electrical circuit in which the loop wire and lead-in cable are the inductive elements. When a vehicle passes over the loop or is stopped within the circle, the car induces eddy currents in the wire loops, which decrease their inductance. The reduced inductance actuates the electronics unit output relay or solid-state optically isolated output, which sends a pulse to the traffic signal controller signifying the passage or presence of a vehicle. Parking structures for automobiles may use inductive loops to track traffic (occupancy) in and out or may be used by access gates or ticketing systems to detect vehicles. Every day thousands of loops are installed all across this country. Chances are, you've driven over several dozen of them on your way to work - and didn't even know it. And if you are in the business of installing these fearless, underground foot soldiers, that's precisely the way you want it: a seamless encounter for every driver, every time.

Vehicle Loops Can Be Found Everywhere

Ready To Learn More?

Whether you are looking to purchase a vehicle loop for an existing installation, looking around at what products are available for an upcoming project, or just wondering how vehicle detector loops work, be sure to include us in the conversation for your next project. Custom sizes are available, and we can accommodate any size loop or quantity your job requires. For more information about how we can work together, contact our sales team for prices and availability at Sales@VehicleLoops.com or by calling us at (888) 378-1175.