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Thread: Mobile speed camera question.

  1. #1
    Join Date
    Aug 2011
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    Lightbulb Mobile speed camera question.

    We have van mounted mobile speed cameras in north wales. ( mounted in the back of the van with the camera pointing out of the back)

    Does anyone know whether they are set to check the speed of ONLY the approaching vehicles going in the direction of travel of the police vehicle? OR can they check both lanes at the same time. IE the vehicles going in the opposite direction away from the police van.

    If traffic is heavy how does the camera differentiate between the direction of travel of its "victims"

  2. #2
    Join Date
    Apr 2012
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    The device in the vans is probably a laser, similar to the handheld ones. They can measure the speed of vehicles in either direction according to where they are pointed. There is a way of compensating for different angles.

    They only need about half a second to get the speed, so even in heavy traffic, they can usually get you.

    I hope you aren't in trouble Dennis?

    Added later: Go Safe is the organisation that operates the cameras in N Wales. There are many posts and articles about the unreliability of these cameras, but most from several years ago.
    Mobile Safety Cameras
    GoSafe has a number of marked vans and motorcycles spread throughout the country which are used at various locations to capture offences of speed and other road traffic violations.

    Mobile Safety Cameras
    These are vehicles which are staffed by fully trained Police Staff or Police Officers, who watch the speed of vehicles passing the vans. Once they form the opinion that the vehicle is exceeding the speed limit, they use the equipment as described below, in order to confirm this suspicion and record it for a prosecution to proceed.

    The speed measuring equipment most commonly used by the mobile enforcement team is the LTI 20-20 TS/M Speedscope. This is a laser device linked directly to a digital DVD system that runs constantly during the whole period of enforcement. We also operate a small number of devices which record to VHS instead of DVD,

    Officer on location
    The LTI 20/20 ensures that all offences are captured on an image to produce to the offender. The Speedscope can be trained on vehicles up to 1,000 metres away, although most work is carried out far closer to the enforcement vehicle. The time, date, speed, distance, site coding and whether the vehicle is travelling towards or away from the checkpoint is recorded on the image to produce to the offending driver.

    This equipment was type approved by the Secretary of State on the 1st November 1993, with a new approval in 2007 to utilise the DVD recording system as a replacement for the VHS system.
    Last edited by Santa; 13-12-13 at 19:02.

  3. #3
    Join Date
    Sep 2007
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    Quote........"They only need about half a second to get the speed, so even in heavy traffic, they can usually get you."

    Aye! the technology is becoming too good these days?

  4. #4
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    Apr 2007
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    Isn't it still required that speed cameras can only be operated in areas where warning signs for their use are installed?

  5. #5
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    I am not sure of the exact law, but I think that if they put signs on the county boundary, saying that they use them, that is sufficient. They are supposed to be visible and not hidden though.

  6. #6
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    There are (or at least were) guidelines on signs and visibility, but no legal requirements.

    In practice, it doesn't matter - by the time you see them, it's too late!

  7. #7
    Join Date
    Dec 2013
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    Yes. Always drive safe and within speed limit. Precaution is better than getting prosecuted.

  8. #8
    Join Date
    Oct 2009
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    They usually check the approaching traffic.

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