Morning...
No, I have not set one off!!! But, On the M25 there are a lot of gantry mounted speed cams above each lane. Are these every used?
I have seen the yellow cameras are positioned at the side of the gantry flash, but never the gantry mounted ones...
Speed Cams
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Rockburner
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Re: Speed Cams
IIRC the gantry mounted ones are the old "Gatso" type, ie fixed trigger speed.Newbie73 wrote: Sat Mar 28, 2026 9:07 am Morning...
No, I have not set one off!!! But, On the M25 there are a lot of gantry mounted speed cams above each lane. Are these every used?
I have seen the yellow cameras are positioned at the side of the gantry flash, but never the gantry mounted ones...
I can't remember if offhand if I've seen one flash, but they might not have a flash.
The verge mounted ones are newer and have a variable speed trigger because they're supposed to help manage the variable speed limit restrictions on "smart" motorways. Note: they're still active when the limit is 70. I've been caught by one a few years ago. They have a small set of cameras just before them, which takes a photo of the gantry mounted speed limit sign at the same time, so there's legal proof of the temporary speed limit signs if they're lit.
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Horse
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Re: Speed Cams
A nerd notes:
The yellow on the side of the gantry are 'HADECS' - Highways Agency Digital Enforcement Camera System. Introduced in 2014.
The yellow on the side of the gantry are 'HADECS' - Highways Agency Digital Enforcement Camera System. Introduced in 2014.
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Le_Fromage_Grande
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Cousin Jack
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Re: Speed Cams
Gantrry = behave yourself, it might have a spped camera.
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The Spin Doctor
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Re: Speed Cams
Yes. They reset to the temp limits, too.Newbie73 wrote: Sat Mar 28, 2026 9:07 am Morning...
No, I have not set one off!!! But, On the M25 there are a lot of gantry mounted speed cams above each lane. Are these every used?
I have seen the yellow cameras are positioned at the side of the gantry flash, but never the gantry mounted ones...
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Supermofo
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Re: Speed Cams
I've seen the gantry cameras go off a few times and like Spin says they also set to the gantry limit as saw one go off with a 40 limit set.