Nassau County deploys automated camera equipment at roughly 100 high-volume intersections. Sensors embedded beneath the asphalt or radar units mounted on overhead gantries continuously track vehicle approach speeds. When a vehicle crosses the marked stop bar while the signal displays a steady red phase, the system triggers dual cameras to capture wide-angle context, close-up license plate imagery, and a 12-second high-definition video sequence.
The captured data does not head straight to your mailbox. First, private technicians employed by the county's camera contractor review the raw files to filter out false triggers, such as emergency vehicles clearing a lane or motorists making permitted movements. Surviving clips are sent to sworn technicians at the Nassau County Traffic and Parking Violations Agency (TPVA). Once a technician certifies that an infraction occurred, the agency issues a formal notice of liability to the registered owner of the vehicle.
This process relies on civil liability statutes rather than traditional criminal or traffic laws. Because a police officer did not pull the vehicle over to identify the driver, the automated enforcement system charges the vehicle itself through its registrant. The county holds the registered owner accountable regardless of who was holding the steering wheel at the moment the shutter snapped.
