How red-light cameras work

The video tutorial explains a traffic monitoring system used in New York and other cities. It consists of a high-resolution digital camera, a strobe light, a control box, and a video sensor. The system activates when motion is detected just before the stop bar after the traffic signal turns red. It captures two images: one before the vehicle crosses the stop line and another in the intersection with the red light on. A close-up of the license plate is also captured.

What is the primary function of the system described in the text?

What triggers the activation of the camera system?

Describe the sequence of images taken by the camera system.

What does the first image captured by the camera show?

Explain the significance of the license plate image in the context of the system.