Can you take cameras onto aircraft?

Do red light traffic cameras make a sound when they take a picture?

• When I was going through a yellow, it turned red when I was like 1/3 through the middle of the street. I honestly thought this wouldn't be considered going through a red. I heard a few small barely audible beeps, and I was like "****.. was that a camera intersection?". When driving across that street again on the way home I did not see any of those big white cameras on top anywhere. I only saw a little black box between the left turn signals and the straight signals. Down a few streets I saw big white cameras that were obviously cameras, but on the street I went through the yellow I did not see that, nor did I see any warning signs saying its photo enforced. My question is, do those cameras make a beep sound after they take a picture? I'm thinking maybe I just heard something that wasn't a camera since I didn't see one. I'm worried sick!

• Answer:

  probably an audible crosswalk signal is what you heard. As for them white cameras you see on the signal lights, Most of them are just traffic cams to assist the traffic lights when traffic is lighter. That way you don't have to sit so long at a light when you stop at a red light. The little black box you seen is for emergency vehicles use. The emergency vehicle can send out a signal turning the lights either red in all four directions or giving them a green light so cross traffic can stop allowing them easier access through the intersection. As for them white cameras catching you running a red light, well they are technically blind as they primarily only can only detect a vehicle within its preset area. Basically it is programmed with a view of the intersection and when you pull up it changes the view so the camera sends a signal changing the light to green via a preset program to get you on your way. It can not be used to see your vehicle license plate or anything clearly. I asked the installers once when they were putting them up near my home one day as I was also concerned about them being used to catch red light runners. Normally traffic control cams( red light cams) are mounted on a pole beside the intersection facing the intersection and are quite big.(at least the ones I have seen are) Some even have bright lights mounted on them to assist them to see you better. Wouldn't worry about it now though. If what you did have were traffic cams you would have gotten the ticket in the mail by now.