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Old 05-05-2018, 08:50 PM
 
Location: Decatur, GA
4,908 posts, read 3,707,121 times
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Has anyone else seen any of what look like tiny cameras at any intersections? There are several around Decatur, inside and outside of city limits at signaled and unsignaled intersections. They're on thin poles maybe 10'-12' tall and angled down toward the intersection. Any ideas what they're for? The intersections they're at, there only seems to be one, and it's usually on one corner pointed roughly into the center of the intersection.
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Old 05-05-2018, 09:06 PM
 
Location: East Cobb, GA
773 posts, read 321,078 times
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They’re either red light cameras or they’re just security cameras.

I’m pretty sure most traffic lights are timed or they use sensors that are triggered by the weight of a vehicles, but they might use cameras.
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Old 05-05-2018, 09:21 PM
 
Location: Decatur, GA
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These are definitely new and temporary and as I said, at some stop sign-only intersections. They're also directional, most security cameras for areas are those black globes, even temporary ones.

However, many newer intersections use computer vision cameras now for red light timing, they're the small white cameras permanently attached either above the light itself, or nearby above the lights. The second most common type of trigger is an induction trigger with a coil that senses the presence of a large metal body, basically an in-ground metal detector.
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Old 05-05-2018, 09:50 PM
 
Location: East Cobb, GA
773 posts, read 321,078 times
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Probably surveillance then.
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Old 05-05-2018, 10:27 PM
 
1,137 posts, read 473,385 times
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Quote:
Originally Posted by MattCW View Post
These are definitely new and temporary and as I said, at some stop sign-only intersections. They're also directional, most security cameras for areas are those black globes, even temporary ones.

However, many newer intersections use computer vision cameras now for red light timing, they're the small white cameras permanently attached either above the light itself, or nearby above the lights. The second most common type of trigger is an induction trigger with a coil that senses the presence of a large metal body, basically an in-ground metal detector.
A longshot guess is also possibly survey cameras, possibly to monitor traffic across a intersection for teams to determine if it needs improvement, traffic counts, and if they may install or upgrade a signal at the intersection.
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Old 05-05-2018, 10:39 PM
 
4,240 posts, read 2,819,802 times
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Are you talking something like the one in this street view image? There's the dome camera, and then the small directional camera below.

I know that a camera was installed in my area at the intersection of Collier and Chattahoochee last year, and someone who worked at a business there said it was due to a number of crashes at the intersection (personally, living less than a mile away for over 12 years and using that intersection on a very frequent basis, I've never seen a crash there). But, that one was a dome camera.

I'm guessing the single directional camera, if like the one in the image I posted, is for intersection surveys or accident evidence.
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Old 05-06-2018, 10:21 AM
 
Location: Atlanta
5,244 posts, read 4,376,829 times
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Those are most likely ALPRs, Automatic License Plate Readers

They're all over the place now. I'm really curious what they're primarily used for, it seems really unnecessary and kind of creepy. Most likely the data is hosted with a private company and there's a good chance they can or will be able to sell that info.
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Old 05-06-2018, 12:06 PM
 
Location: East Side of ATL
4,143 posts, read 5,735,899 times
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Quote:
Originally Posted by tikigod311 View Post
Those are most likely ALPRs, Automatic License Plate Readers

They're all over the place now. I'm really curious what they're primarily used for, it seems really unnecessary and kind of creepy. Most likely the data is hosted with a private company and there's a good chance they can or will be able to sell that info.
I'm more worried about the private cars with ALPR's that I have seen constantly in shopping lots and apartment complexes with the ALPR. Most of the government have a semi 6 months to 1 year policy but I have no idea where my info is going with the private cars with no identifiable information on them.

Matt, do the cameras look like this mounted on the telephone pole?

https://goo.gl/maps/vXcAVfXYXNs

https://goo.gl/maps/ufPX4D5XkCr (looking east on HBR in front of the Jefferson Plaza sign is another set)

I'm trying to find a clear shot of them in Norcross.
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Old 05-06-2018, 04:52 PM
 
Location: Decatur, GA
4,908 posts, read 3,707,121 times
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*sigh* no, as I said, they look temporary and are on thin poles, does anyone even read what I write? I was able to pull an image of one off my dash cam. The camera itself is basically invisible, but you can see the thin silver pole next to the utility pole. This intersection is Church St at North Decatur Road next to the railroad. There's another few in downtown Decatur, and one S. Columbia at Columbia Drive with the silver pole there attached somehow to the stop sign.
Attached Thumbnails
Small cameras at intersections?-20180506_182839.jpg  
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Old 05-06-2018, 05:22 PM
 
4,240 posts, read 2,819,802 times
Reputation: 2758
Quote:
Originally Posted by MattCW View Post
*sigh* no, as I said, they look temporary and are on thin poles, does anyone even read what I write? I was able to pull an image of one off my dash cam. The camera itself is basically invisible, but you can see the thin silver pole next to the utility pole. This intersection is Church St at North Decatur Road next to the railroad. There's another few in downtown Decatur, and one S. Columbia at Columbia Drive with the silver pole there attached somehow to the stop sign.
Yeah...we read what you write, but without an actual image, we are having to go on what we've seen to give opinions.

Those are indeed very temporary looking, so my guess would be intersection surveys.
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