Averaging cameras. Why must people...

pinkteapot
pinkteapot Posts: 8,038 Forumite
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in Motoring
... brake sharply when they spot one overhead?

Argh!
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Comments

  • Hintza
    Hintza Posts: 19,420 Forumite
    First Post Combo Breaker
    I do have a serious chuckle when I see it.
  • Sgt_Pepper_2
    Sgt_Pepper_2 Posts: 3,644 Forumite
    I don't know, I never have.
  • pinkteapot
    pinkteapot Posts: 8,038 Forumite
    First Anniversary Name Dropper Photogenic First Post
    I usually flick on cruise control and relax. Then my relaxation is spoiled by some numpty braking under the camera grrrr.
  • Paperbird
    Paperbird Posts: 301 Forumite
    pinkteapot wrote: »
    ... brake sharply when they spot one overhead?

    Argh!

    Because they don't have a clue what the speed limit is.
  • photome
    photome Posts: 16,361 Forumite
    Name Dropper First Anniversary First Post Bake Off Boss!
    I regurlarly drive the A14 between cambridge and huntingdon that has average speed cameras and rarely do I see anyone braking under a camera.

    Its not often anyone is even doing 70 though
  • muckybutt
    muckybutt Posts: 3,761 Forumite
    First Anniversary Combo Breaker
    I dont think thicko - stupid motorists realise quite how they work ?

    The M62 is a right barrel of laughs at the moment between Wakefield and Bradford, i'm on there two - three times a week and happily poddle along at 50 - 53 mph knowing i'm within the limit yet am frequently overtaken some fly by me, i'm just left thinking !!!!!! ?
    You may click thanks if you found my advice useful
  • graham.senior
    graham.senior Posts: 28 Forumite
    First Anniversary Combo Breaker
    Anybody know how fast you can really go as i see lorrys overtake me doing nearer 60 in a 50 limit.
  • System
    System Posts: 178,093 Community Admin
    Photogenic Name Dropper First Post
    pinkteapot wrote: »
    ... brake sharply when they spot one overhead?

    Argh!
    They are probably related to the ones who brake down from 60 to 40 when they see a Gatso on an NSL road.



    *For the pedants I am talking about car drivers where NSL = 60 for them
  • Notmyrealname
    Notmyrealname Posts: 4,003 Forumite
    graham.senior wrote: »
    Anybody know how fast you can really go as i see lorrys overtake me doing nearer 60 in a 50 limit.

    They won't be. They have speed limiters restricting them to 90kph/56MPH.

    However what a lorry has is a speedo which legally has to be more accurate than a car (2.5% compared to 10%) which is tested at a tachograph test center every 2 years to check calibration.

    So whilst you are trundling along doing 50MPH on your speedo, the more accurate speedo in the truck following you would most probably be around 45MPH.

    Now going back to the cameras, if you know the ACPO guidelines means they won't do you until you're doing 10%+2MPH over the limit (57MPH in a 50 limit) and you know you're in a vehicle with a quite accurate speedo and a limiter that'll not exceed the ACPO guideline then there's a tendency to just run on the limiter.
  • Sgt_Pepper_2
    Sgt_Pepper_2 Posts: 3,644 Forumite
    graham.senior wrote: »
    Anybody know how fast you can really go as i see lorrys overtake me doing nearer 60 in a 50 limit.

    Bear in mind their speedo is calibrated is yours?
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