Viewing 40 posts - 1 through 40 (of 58 total)
  • Did you know this about managed motorways?
  • bearnecessities
    Full Member

    I didn’t…

    I have always thought that the speed cameras were only activated when the ‘smart’ bit was in place; i.e when set to 40/50 etc.

    The assumption is from years of watching cars whizz through these gantries (ones that actuially have cameras attached)- when they’re off, nothing ever happened, yet when managed speeds are in force, I’ve seen a fair few activated.

    However this morning at 6:30 around J26 of M62, gantries were all off with nothing on the displays and the cameras flashed a speeding vehicle.

    Dunno if it’s a new policy, but it surprised me and thought worth mentioning.

    That’s all. 🙂

    hora
    Free Member

    I drove through at 85 on the M62 ones- I saw a fair few being flashed on the otherside including trucks(!), I was flashed and received nothing. Alittle digging and from the Examiner newspaper(?) it seems they aren’t even turned on. Why bother installing them?

    Now with two years of massive disruption ahead on the M60 (why does it need them?) – will the ‘smart’ gantries be turned on too?

    Suggsey
    Free Member

    You will probably find that that camera is a known and advertised static speed camera and always has been a static camera location…..unless national speed limits signs were showing on the gantries and obviously with the associated speed camera signs it’s a big clue that the speed cameras will be active.

    nickjb
    Free Member

    According the local paper the new managed section on the M4 near Bristol has caught more people going over 70 when the system is ‘off’ than they have when it is being managed. Apparently they’ve caught 5 people doing over 100mph

    DaveyBoyWonder
    Free Member

    As above, I’ve seen people get flashed loads of times on the M62 around Leeds. Absolutely loads.

    It obviously works whether the cameras are on or not because now vs 2/3 years ago 99% of people stick to 70 and its loads easier to drive through.

    hora
    Free Member

    As above, I’ve seen people get flashed loads of times on the M62 around Leeds. Absolutely loads.

    It obviously works whether the cameras are on or not because now vs 2/3 years ago 99% of people stick to 70 and its loads easier to drive through.

    Shouldn’t you be sat stuck on a train somewhere instead of blocking our motorways 😉

    mintimperial
    Full Member

    Alittle digging and from the Examiner newspaper(?) it seems they aren’t even turned on. Why bother installing them?

    The Examiner posted a story a while back stating that they are on and will bust you for going over the NSL even when the signs are off. Has that changed again then?

    I did see people flashed last time I went through but that was a month or so back.

    john_drummer
    Free Member

    Aren’t they just regular Gatso cameras but programmed for the exact limit at that moment in time? “no limit” does not exist, when there is no active limit then the National Speed Limit applies.

    edlong
    Free Member

    I heard many years ago that the reason they (then) didn’t use gatsos on motorways was something to do with the margin of error at higher speeds and them not being up to the task. Camera technology might have improved, or the above might well have been a load of cobblers, I don’t know.

    slowoldgit
    Free Member

    The system seems to work just fine on the M25 past Heathrow. People got used to it, accepting variable speed limits as preferable to stop/go congestion. What is the problem with you Northern folk?

    hora
    Free Member

    Thats a badly written article because it doesn’t actually say if people ARE being prosecuted. I wasn’t. This part:

    But a police tweet said: “Scheme is managed by @HAnews_yorks. It indicates a vehicle has exceeded national speed limit which applies when signs are off.”

    West Yorkshire Police refused to comment further but the Highways Agency has now confirmed the new £150m overhead gantry system between Huddersfield and Leeds CAN catch speeding motorists, even when it is not being used to slow the traffic

    It just says ‘can’ but not figures.

    Whereas……the M60 average one is live (and for very good reason IMO):

    http://www.express.co.uk/news/uk/424979/Britain-s-top-ten-most-lucrative-speed-cameras-raked-in-12million-in-just-three-years

    It also has the highest fines. Can’t people **** control their right foot for just 1/2mile ffs? Its to police a very dangerous blind bend. A few years ago a few young people were run over and killed as they escaped their crashed car after the sweeping BLIND bend.

    hot_fiat
    Full Member

    The gantry cameras on the M1 between the A38 and A610 seem to only run when the reduced speed limits are in force. I thought the rest were the same. 😯

    ransos
    Free Member

    Now with two years of massive disruption ahead on the M60 (why does it need them?)

    Because a) managed motorways can carry more traffic than ordinary motorways and b) the M60 is busy.

    Flaperon
    Full Member

    The system seems to work just fine on the M25 past Heathrow. People got used to it, accepting variable speed limits as preferable to stop/go congestion. What is the problem with you Northern folk?

    Really? As someone who drives that section of road nearly every day I can tell you that in general the limits are ignored – and quite often are still displayed on a nearly empty motorway.

    The biggest problem on the M25 is people doing 90mph between gantries and stamping on the brakes to drop below the speed limit. They’re not enforced – and probably couldn’t be – on this particular bit of road.

    mintimperial
    Full Member

    Thats a badly written article because it doesn’t actually say if people ARE being prosecuted. I wasn’t.

    Ah, yes, you’re right. Just wondered if you’d seen something else contradicting it. The Examiner is simply chock full of badly written articles…

    FWIW I think the M62 needs slowing down between Hudds and Leeds, you see lots and lots of stupid driving on there and volume of traffic is high. People are forever whinging because bits of it are closed while they scrape some **** or other off the tarmac. But then when it’s open they whinge about the possibility of getting busted for speeding. 🙄

    Cougar
    Full Member

    I heard many years ago that the reason they (then) didn’t use gatsos on motorways was something to do with the margin of error at higher speeds and them not being up to the task.

    My understanding was that the new side-gantry HADECS3 cameras are ‘always on’ and the traditional over-the-top Gatsos are only live when the reduced limits are in force. If that’s not the case then the limits on the Gatsos must be set pretty high, as they simply don’t have the resources to process everyone who will go through them at >70mph (ie, most people on the motorway).

    4130s0ul
    Free Member

    Personally i’d like to know who is in charge of managing a stretch of road and how they base their judgements re speed etc.
    so many times I have been on the m4/m5 and the signs read 50mph/60mph and also open the hard shoulder as they highlight congestion.
    yet there are only about a dozen or so cars on the roads and all well spaced apart over a good mile or two.
    so is it that there’s someone with poor judgement deeming the road as busy and therefore slowing down the maximum speed and opening up the hard shoulder. or are they not being managed in real time and the speed limit / hard shoulder have remained the same beyond their need?

    BTW I have no problems with managed motorways or variable speed limits

    Cougar
    Full Member

    Googling,

    http://www.wakefieldexpress.co.uk/news/local-news/m62-speed-cameras-active-at-all-times-1-6164836

    The section between junction 25 at Brighouse and junction 30 and Rothwell was completed last month and highways bosses have confirmed cameras remain active at all times.

    Previously it had been thought motorists would only be automatically fined if they broke speed limits when the signs were on and the managed motorway variable speed limits were active.

    A Highways Agency spokeswoman said: “The speed enforcement system is capable of enforcing variable speed limits including the national speed limit, including when the signs are blank.”

    I’m 99% sure that the M62 MM is HADECS, not Gatso. So I’d hazard that they’re telling the truth, and that would be why you saw it fire.

    Cougar
    Full Member

    Personally i’d like to know who is in charge of managing a stretch of road and how they base their judgements re speed etc.

    I don’t actually know, but I’d have thought that a degree of automation was in play. So if a gantry detects that traffic has suddenly slowed right down, it’ll slow oncoming traffic further upstream. If that’s the case then a ‘phantom traffic jam’ could readily cause what you describe, someone jams on for something, the limits come into effect, and by the time you get to the cause there’s nothing there.

    I’m purely speculating here, mind.

    edlong
    Free Member

    don’t have the resources to process everyone who will go through them at >70mph

    If they’re following ACPO guidelines (and I think all do) it would only be people doing 80 and above who’d get a ticket (the allowance being 10% + 2 mph margin of error)?

    Cougar
    Full Member

    I’m guessing, but I’d expect they’re set higher than that.

    jambalaya
    Free Member

    Hum, thanks for the post. It was always my understanding the cameras where only on when the limit was set to less than 50. I do know the ones on the M25 around the A3/M3/M4 where not activated for 10 years due to some legal dispute, they are on now though.

    bikebouy
    Free Member

    For a couple of years the southern section of the M25 (Kent/Surrey/Sussex borders – M20/Clackett Lane/Brighton/A217 area) were turned off because of some wrangle about the accuracy and Legal entity able to prosecute. Loads of folks use that section and for a while at least you see folks hacking at 100mph + knowing the cameras were off.
    Then came the roadwords and ave 50 mph limits and masses of folks in the office got pinged because they failed to understand the methodology of “Average” and failed to recognise 50 mph as the limit..
    They’ve recently removed the roadworks and the cameras are most deffo on, often driving back from the coast on a late Sunday Eve I count at least 10 being pinged..

    Cougar
    Full Member

    Ah, this is a good explanation (of the Gatso-based gantry system):

    http://www.ukspeedtraps.co.uk/gatso10.htm

    The system can enforce a number of speed limits. That is to say, it has a fixed number of speed limits rather than being constantly variable. The speed limits are 0 (a.k.a. red X or “lane closed”), 20, 30, 40, 50, 60 and NS (the national speed limit, currently 70mph). Each speed limit also has a user-settable threshold, so that the actual speed at which an offence occurs is the sum of the speed limit and this amount (e.g.. a 40mph limit with a 10mph threshold means it will enforce at 50+mph.). Generally the threshold is no less than 10%+2 of the speed limit, but this is merely a guideline and it can be anything from 0-99mph, and is entirely at the discretion of the operator.

    the system can record an absolute maximum of 400 offences

    If the camera runs out of film it will enter “dummy mode” whereby it flashes twice to simulate taking 2 photographs (and make the motorist think they have been caught).

    So ideally, the Gatso camera needs to be set at a threshold where it will record 400 offences between film changes. How long do you reckon that’ll take if it’s set at 80mph? Not happening, it’ll either be set very high in order to save film for when it’s actually needed, or (as I believe is actually the case) it’ll be switched off due to the inherent capacity limitation of the system.

    hopkinsgm
    Full Member

    It depends… earlier editions of the HADECS standards did not permit cameras to prosecute when a variable limit is not in force. With HADECS v3 now in place, they can.

    And Hora – do you really think the M60 doesn’t need a Managed Motorways (actually Smart Motorways is the term the HA are now promoting) scheme? Yes, it’ll be crazy disruptive whilst it’s going on and it probably won’t solve all the congestion issues, but it could help. However, to make a real difference, what is needed is to get rid of about half the junctions…

    ScottChegg
    Free Member

    Can’t people **** control their right foot for just 1/2mile ffs?

    I drove through at 85 on the M62 ones

    Quite astonishing lack of self awareness on display.

    hora
    Free Member

    no the M60 does not need one. Most of the time the weight of traffic ensures the speed is low due to the sheer number of feeder junctions. Ontop of this the idiots who queue over barton bridge in TWO lanes to get to the Trafford centre whilst the next junction (indicated by signs) is empty and you can get straight into the Trafford centre freely.

    If they were concerned about safety they’d CLOSE the turn off to the Trafford centre on Barton bridge.

    Its not about safety though, the contracts were signed years ago under the Labour government. Labour also signed contracts for average cams on alot more of our motorways. Alot of these contracts are costly to get out of. The Tories aren’t in a rush to get rid of them and that count but also it stimulates growth in/contributes to ‘construction/civils’ etc.

    Again the ‘it’ll make it safer argument is crock’. Its tight, multiple exits so will always be congested with even half capacity. The smart idea may work in some areas but not here. Heres to TWO years of gridlock.

    Cheers Labour and now the Tories.

    mogrim
    Full Member

    So ideally, the Gatso camera needs to be set at a threshold where it will record 400 offences between film changes.

    Do they really still use film???

    hora
    Free Member

    On the M62 ones- wasn’t the responsibility for the upkeep/administration WYorks Police but the revenue was central Government? In that alone I can see why theres been no prosecutions yet. Like I said I sailed through at least two before I realised.

    hopkinsgm
    Full Member

    Do they really still use film???

    HADECS (HA Degital Enforcement Camera System) cameras don’t

    thisisnotaspoon
    Free Member

    I think there’s something special about some of the cameras that do flash at the NSL? The ones on the M20 (or M25 in Kent, I forget which) are something newer, and definately do flash over the NSL. The one’s on the M25 past Derby are just the normal gatso’s and definately didn’t.

    I’d rather they were on, makes it easier for the majority to do 70 and only penalises the minority who did 80 and viewed it as some sort of god given right, before having to slam on the brakes causing tail backs, or crashing and closing the motorway for a few hours.

    Is there a time allowance on them for when the limits change? I’ve driven through them and seen them turn on at 50 with not enough distance to go to reasnobly slow down without braking hard and wondered if theres a delay before they start recording speeders or if it would be a valid defence in court to say “it changed with 30m to go and there was an Audi 6″ from my exhaust pipe”.

    cp
    Full Member

    Its to police a very dangerous blind bend

    What polices the blind (tighter) bend in the other direction which doesn’t have cameras? Which incidentally also has a very dubious merging of slower traffic from the right thing going on?

    craigxxl
    Free Member

    I was always under the assumption that the cameras worked at all times even when restrictions were not in place. There was something on Facebook a while ago about a meeting were it was agreed the cameras would be operation at all times.
    I’ve not got my head around the traffic management and speed restrictions. All lanes appear to always be opened and speed restrictions for no apparent reason such as 10pm on a night when the traffic is light, good weather and speed restricted to 50. Travelling all the way from Leeds to the M61 and no accidents or signs of bad weather.

    maxtorque
    Full Member

    My information comes from an ex collegue who is now an “information systems” principal engineer for the highways agency, and is that the early system is only operative when the reduced limits are in force, and is set to match the recommend (10%+2mph) but the later system is always active. However, it was found, during trials, the current system could not handle the shear volume of traffic that passes it in excess of the nominal 70mph limit, and so, when no “local limit” is in place, the set point is pretty high (a true 88mph has been mentioned to me, but unconfirmed). That would tally quite well with what i’ve experienced, and given that most speedometers overread by a significant margin at these speeds would suggest you’d have to go under the new cameras at well over an indicated 90mph to get done…….

    Cougar
    Full Member

    The ones on the M20 (or M25 in Kent, I forget which) are something newer, and definately do flash over the NSL.

    They are, they’re the HADECS ones I’ve been talking about for half the thread.

    bikebouy
    Free Member

    ^^ You may need to repeat that lot then 😆

    On another point, Vans.. You know Vans with odd speed limit restrictions..
    Do the cameras know it’s a Van, is there some sort of Colour filter on the lens that pulls out just “white” ?

    Curious like 😆

    Harry_the_Spider
    Full Member

    I’m enjoying my M60 experience at the moment. Speed limit is set to 50mph and the traffic seems to be flowing much better without so many speed up / slow down moments. It has knocked between 5 and 10 minutes off my daily commute and it is so much easier getting on at J17.

    As a double bonus it is much quieter in my back garden too which is about 400m from J18.

    I’d happily see the whole network covered with average speed cameras, but I would have to pay for cruise control to be retro fitted to the car.

    mrchrispy
    Full Member

    I like the smart motorways and I’m 100% certainly that the M42 section around Birmingham don’t go off if the system is not in use…I’ve known people* go through that section and Mach 4 a number of times and never received a ticket

    *my legal department suggests I don’t name individuals.

    hot_fiat
    Full Member

    For a very long time none of the cameras on the M42 worked, at any time.

    thisisnotaspoon
    Free Member

    On another point, Vans.. You know Vans with odd speed limit restrictions..
    Do the cameras know it’s a Van, is there some sort of Colour filter on the lens that pulls out just “white” ?

    I was wondering this, towing the boat back after a race I usualy stick to the speed limit (60, indicated on the speedo), mainly because it’ll still do 42-45mpg (1.6 petrol C-max) compared to 40-42 without the boat at 70, versus about 32-33mpg at 70. But I know others who happily do their usual 70mph (actual on the GPS). I suppose you could make a computer look for 2 numberpates in quick sucession, but I guess the cameras are almost enirely dumb and just sense the speed of the object, then fire off the shutter, and it’s upto a person or software to read the numberplates after the event.

    Average speed cameras could though I suppose as they’re reading every plate in real time and would just need to be programed to look for vehicles longer than expected as it presumably can figure out the make/model from the plates?

Viewing 40 posts - 1 through 40 (of 58 total)

The topic ‘Did you know this about managed motorways?’ is closed to new replies.