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PostPosted: Mon Jul 04, 2005 14:31 
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Drove over a set of gatso calibration lines on the A4 between newbury and hungerford... no camera there but are they used by mobile units as a secondary speed check also? Seemed a stupid place for a camera... wide open National Speed Limit Road.


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PostPosted: Mon Jul 04, 2005 14:45 
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Maybe there was roadworks there at one point and a fixed camera was temporarily set up? There are some of these unused lines on the A90 near Forfar - used to be a camera there.


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PostPosted: Mon Jul 04, 2005 16:08 
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There seems to be speed camera white lines everywhere. They have left them on the M42 and M6 after the road works have been removed.

I would have thought these could be considered a hazard (sudden braking etc). I don't know why they are alowed to stay on the road. All the other temporary markings have to be taken away.

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PostPosted: Wed Jul 06, 2005 18:27 
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Most times I see these lines their is an overpass directly behing them.....so the vultures can sit up there :x

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PostPosted: Wed Jul 06, 2005 19:09 
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Have 3 maybe 4 of them in a row on the A13 both inbound and outbound near the Dartford area - one thing I've noticed is that there is a Gantry by each one of them- but some sources say the cameras are set to trigger at 95mph - but to be honest - 70mph feels like a crawl on this particular stretch because the visibility is excellent and the road surface very smooth.

80 is very comfortable and the road so free-flowing, that you can stay in the usual drive lane, - and 85-90 for overtaking swiftly if needed (mph)

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PostPosted: Wed Jul 06, 2005 19:11 
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I think the ones that are refered to in the thread are those that are left behind when the temporary cameras are removed. After road works etc. The M42 and M6 are littered with them.

The some parts of the M25 and new parts of the M42 wher ethere are variable limits. The have gantry cameras and markings in the lanes. I think they only operate when there is a 60 limit or less. Don't quote me though.. :wink:

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PostPosted: Wed Jul 06, 2005 19:57 
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I saw an M25 gantry camera flash twice the other day and the limit was set to NSL....


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PostPosted: Wed Jul 06, 2005 20:17 
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princeperch wrote:
I saw an M25 gantry camera flash twice the other day and the limit was set to NSL....

Yes, it's recognised the cameras remain active when the limit is set to NSL, although the threshold is reputed to be in the low 90s.

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PostPosted: Wed Jul 06, 2005 20:24 
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I wonder what kind of fail-safe systems are built into the gantry cameras.
What, for example, would happen if the gantry signs changed from, say, 40, to NSL but there was a comms problem and the camera failed to get the message that the limit had changed? Would it continue happily flashing anyone above 40, or would it default to NSL (or switch off) in the absence of regular messages from the gantry signs?

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PostPosted: Wed Jul 06, 2005 21:39 
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Pete317 wrote:
I wonder what kind of fail-safe systems are built into the gantry cameras.
What, for example, would happen if the gantry signs changed from, say, 40, to NSL but there was a comms problem and the camera failed to get the message that the limit had changed? Would it continue happily flashing anyone above 40, or would it default to NSL (or switch off) in the absence of regular messages from the gantry signs?


:idea: And is any method of remote control of a camera threshold type approved?

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PostPosted: Fri Jul 08, 2005 09:41 
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Gizmo wrote:
There seems to be speed camera white lines everywhere. They have left them on the M42 and M6 after the road works have been removed.

I would have thought these could be considered a hazard (sudden braking etc). I don't know why they are alowed to stay on the road. All the other temporary markings have to be taken away.

Chicken and Egg.

The driver who feels compelled to brake is out of touch and out of control.


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PostPosted: Fri Jul 08, 2005 09:42 
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SafeSpeed wrote:

:idea: And is any method of remote control of a camera threshold type approved?

Yes


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PostPosted: Fri Jul 08, 2005 09:43 
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Pete317 wrote:
I wonder what kind of fail-safe systems are built into the gantry cameras.
What, for example, would happen if the gantry signs changed from, say, 40, to NSL but there was a comms problem and the camera failed to get the message that the limit had changed? Would it continue happily flashing anyone above 40, or would it default to NSL (or switch off) in the absence of regular messages from the gantry signs?

Cheers
Peter

Even if it did the Ticket Office would have the schedule of speed limit changes to compare with the time of the offence.


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PostPosted: Fri Jul 08, 2005 10:45 
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JJ wrote:
SafeSpeed wrote:

:idea: And is any method of remote control of a camera threshold type approved?

Yes


Really? Details please. What camera equipment has this feature and type approval?

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PostPosted: Mon Jul 11, 2005 10:10 
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JJ wrote:
Gizmo wrote:
There seems to be speed camera white lines everywhere. They have left them on the M42 and M6 after the road works have been removed.

I would have thought these could be considered a hazard (sudden braking etc). I don't know why they are alowed to stay on the road. All the other temporary markings have to be taken away.

Chicken and Egg.

The driver who feels compelled to brake is out of touch and out of control.


I find this attitude breathtaking. Yes, people who panic brake approaching camera lines painted on the road probably aren't very good drivers. That doesn't excuse their continued existence when no longer required. They are still a potential hazard regardless of the attitude and ability deficits of some of the roadusers encountering them. Should we stop treating people with lung cancer because they should know better about smoking? Are 'Mind your Head' signs on low beams simply pandering to the stupidity of tall people?

Are you suggesting that people ought to develop their driving skills? Funny that, no one at my local partnership has taken the 4-5 seconds to include a link to any local providers of advanced training on their website.

You seem to be believing your own PR that 'bad driver' = 'bad person'. A bit more of a 'humanistic' approach (as seen in most 'proper' statutory agencies) might help?


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