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Speed cameras

Discussion in 'General Chit Chat' started by briwy, Jan 11, 2019.

  1. briwy
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    briwy Top Poster VIP Member

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    Apparently the speed cameras on the M25 and M1 have now been turned on and there is no discretionary leeway over the posted limit.
    Guess there will be a lot of money raised.
     
  2. westfalia
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    westfalia VIP Member

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    How do you know where they are ?

    Are they the ones overhead in each lane or at the side ?
     
  3. liaoyang
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    liaoyang VIP Member

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    Yeah but your speedo should underead on normal tyre sizes and I bet there’s at least a 5% margin on the camera unless they are very very sure of their calibration. Get a gps app on your phone and see what speed 50mph is really on your Cali speedo (53mph for ours) and set cruise at that.
     
  4. briwy
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    briwy Top Poster VIP Member

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    I thought speedos normally overread. Every one I've ever had certainly does but I believe legally they can be either way.
    GPS can vary as well. I've tried three at the same time and all different.
     
  5. GrannyJen
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    GrannyJen goody goody 2shoes Moderator Top Poster Lifetime VIP Member

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    I thought that they were always on.

    What's the point challenging speed limits. 200 miles at 70 or 90 mph is a few minutes.

    Personally if I can average even 50mph on those two motorways I would think I was having really good day.

    No, I am not a smug old dodderer. I did once appear in court charged with 112 mph AVERAGE over 4 miles. I was going a lot faster when I detected the unmarked police car behind me. Nothing to be proud about.
     
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  6. Digger
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    Motorways have the safest record of all roads so being rather cynical I think this is a revenue scam if true. Would rather the authorities enforced the limits in towns and cities where pedestrians are at greater risk.
     
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  7. briwy
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    briwy Top Poster VIP Member

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    I'd rather they got people out if the middle lane. Pointless having more lanes if they aren't used correctly.
     
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  8. Amarillo
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    Amarillo Tom Top Poster VIP Member

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    I’m all for it. If motorists want to contribute additional revenue to the exchequer by speeding, it is their choice to make.


    Follow my blog: www.au-revoir.eu
     
  9. liaoyang
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    liaoyang VIP Member

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    Sorry I meant under read compared with the speed you think you’re doing, ie you think you’re doing 50 but you’re actually doing 47.
     
  10. Erbster
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    Erbster VIP Member

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    Isn’t the point to make the motorway “managed” -slow traffic down when needed to reduce jams?


    https://caliventures364847572.wordpress.com/
     
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  11. Digger
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    Off early morning fishing trip and glad I live way up north and far from London (and its motorways):headbang
     
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  12. Stoneybroke
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    Stoneybroke VIP Member

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    The cameras will give some leeway, depending on the local arrangements, minimum 10% normally, some areas a little more, simply to prevent the inevitable legal challenges that would come from doing someone at 71mph - "can the device really be that accurate your worship?" Remembering that some new cameras cover several lanes, they have to prove, beyond reasonable doubt, that it was you speeding, not the car next to you/something flapping/etc.
    The buffer also prevents the Safety Partnerships being overwhelmed with cases to process.
     
  13. Velma's Dad
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  14. B J G
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    B J G VIP Member

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    Seems a potentially expensive assumption that speed cameras are ever switched OFF.

    It can be a nightmare trying to keep track of what speed limit you are currently in when faced with the variable speed limits over a relatively short distance. All that on top trying to keep a watch on the other vehicles. Not so bad if a constant speed indicated but when it changes almost every gantry seems illogical.
     
    Last edited: Jan 14, 2019
  15. Amarillo
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    Amarillo Tom Top Poster VIP Member

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    The BBC reported yesterday that the “Gilets Jaunes” have destroyed 60% of all French speed cameras.


    Follow my blog: www.au-revoir.eu
     
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  16. Velma's Dad
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    Velma's Dad VIP Member

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    I'm an average middle aged bloke - so hardly in my sensory and reaction-time prime - but I can manage to stay tuned in to the large speed limit signs on the overhead gantries, even in heavy traffic. I'd agree it does mean staying alert, but I'd hardly call it a nightmare.

    I'd not dispute that additional complexity of the driving environment can lead towards 'task saturation', and there are certainly many things now to keep us busy - but most of those are inside the car, such as satnavs with complex displays, media systems, and phones (even when hands free).

    But I assume we'll soon see some kind of speed-governor option in cars, linked to an app that can receive variable speed limit data tagged to GPS waypoints, or from roadside beacons, that drivers can turn on to keep them automatically within the limit. (Although I'd predict some people will scream that would be dangerous because it will take away control from the driver, or some such. Despite the fact that HGVs have had speed governors for decades.).
     
  17. B J G
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    B J G VIP Member

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    Been a while since the rubber tyre 'necklace' was common on our speed cameras this French action will probably regenerate similar action here soon.
     
  18. SusiBus
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    SusiBus 2-pedal power Peppa Pig trike Moderator VIP Member

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    Having seen a few people recently being flashed by these relatively new cameras on the M25 l wounder if the speed set has been reduced?

    Anyway, here is some bedtime reading.








    https://www.speedcamerasuk.com/hadecs-3.htm

    REDFLEXhadecs3 or HADECS 3 which is short for Highway Agency Digital Enforcement Camera System 3 is one the newest speed cameras to be installed on UK roads. Current locations include the M1 in Derbyshire, M6 in Staffordshire, M25 in Surrey, M20 in Kent, M25 in Kent, M62 in West Yorkshire and M4/M5 in Somerset.

    Following Home Office approval the first Redflex Hadecs 3 system went live on the M25 motorway between junctions 5 and 6/7 on the 22nd October 2014. Between the 22nd October and 25th November 2014 some 668 motorists had been caught speeding by the new speed camera, many of which are calling it a 'stealth camera'

    The HADECS 3 speed cameras have so far been installed on the M25 in Kent between junctions 5 and 6/7. More locations are planned on a number of other motorways in the UK, including:

    ‣M1 in Derbyshire and South Yorkshire

    ‣M25 junctions 5 to 6/7 Kent

    ‣M3 in Surrey and Hampshire

    ‣M4/M5 in Somerset

    ‣M6 around Birmingham

    ‣M62 in West Yorkshire

    These busy motorway locations all share one thing in common, they are all smart motorways. A smart motorway (formerly managed motorway) is a section of motorway which uses active traffic management (ATM) techniques to increase capacity by using variable speed limits and the use of the hard shoulder as an additional lane at times of congestion.

    In the instance of the M25 smart motorway section in Kent, the speed limit is normally set to 70mph. However when the hard shoulder lane is in use, the speed limit can reduce down to 40mph, 50mph or 60mph. Any change in the speed limit is clearly communicated to motorists via overhead gantry signs. The HADECS speed enforcement cameras then adjust to the new speed limit
     
  19. Bellcrew
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    Bellcrew VIP Member

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    It is why the ACC is so helpful, set the speed and just adjust up and down to suit in 5 mph sections on the steering wheel, use GPS speed if you want to get closer to the actual limit.
     
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  20. B J G
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    B J G VIP Member

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    I did say CAN be a nightmare as I was thinking of the Saturday 21st July when I got on the M25 at the A414 junction and left at the A3 junction. The speed limits went up-down-up-down-down-up-no limit-down-down-up-down-no limit-down-down-up-up-no limit plus use hard shoulder lane, don't use hard shoulder lane etc. (not guaranteed to be fully accurate a sequence) Quite a few stops as well.

    I joined the M25 behind a coach and was alongside it just before exiting.
     
    Last edited: Jan 14, 2019
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