Yup. I have a friend who joined the dark side and sells traffic cams to municipalities. The intersections are often rigged to be right on the ragged edge of the law, so as to generate enough fine revenue to justify the cost of the camera. Oops...I meant to promote public safety. Here's a good article on beating a red light ticket:
https://www.nolo.com/legal-encyclopedia/free-books/beat-ticket-book/chapter7-3.html