Why would that be a sudden stop unless it is hidden and pops out at the last second? Simply putting up a photo of a traffic light is going to be detected as, we

Why would that be a sudden stop unless it is hidden and pops out at the last second? Simply putting up a photo of a traffic light is going to be detected as, well, a traffic light as the car approaches. Maybe with a blind curve or with some other similar obstruction you could create a situation where the photo of the light isn't seen until the last second but you can do the same with human drivers and a fake stop sign.