M4 HEDACS Smart motorway cameras now being used for 70 limit
Discussion
CoolHands said:
So correct me if I'm wrong but is that in a non speed controlled area of the motorway? Is not a managed motorway, which is I thought the only place these were going to be used?
That section is now managed. The additional 4th lane gives it away but was still a WIP at the time of that pic.andoverben said:
I was actually coming in here specifically because I have just had a NIP through for 82 mph in that exact section at 4:15am! (on the way to Bristol Airport) Did not expect them to be on since the variable speed limit was off
How can anybody claim it has anything to do with Safety!
Me too. NIP after going west on M4 around 8.30am on a Sunday morning (Aug 7) doing 82/83 in a 70 zone on the South Gloucester section. Didn't see camera. Do TomTom satnavs pick up these Hadec things?How can anybody claim it has anything to do with Safety!
Either people know something I don't or a lot of NIPs are going to be dished out to all the people that thought the temporary 50mph limit between Tibshelf and Barlborough last night/this morning didn't apply to them. The one down the hill from Tibshelf services and the one in the dip after Markham Vale McDonald's were flashing like crazy at those doing over 50. I must've seen upwards of 20 flashes between the 2 of them. The TNT artic in front of me going down the hill from Tibshelf had some weight on as he was over-running his limiter down the hill; I estimate he went past the camera doing about 57-58mph and he got flashed - no other vehicles going past it at the time and it was a temp 50 limit on the display.
All that jazz said:
Either people know something I don't or a lot of NIPs are going to be dished out to all the people that thought the temporary 50mph limit between Tibshelf and Barlborough last night/this morning didn't apply to them. The one down the hill from Tibshelf services and the one in the dip after Markham Vale McDonald's were flashing like crazy at those doing over 50. I must've seen upwards of 20 flashes between the 2 of them. The TNT artic in front of me going down the hill from Tibshelf had some weight on as he was over-running his limiter down the hill; I estimate he went past the camera doing about 57-58mph and he got flashed - no other vehicles going past it at the time and it was a temp 50 limit on the display.
They've not been painted yellow yet, so assume that they're not enforcing at the moment. In fact, I'm not sure that entire stretch is considered 'complete' yet, so probably still in the testing phase.That one further South near Nottingham has had a coat of paint though!
All that jazz said:
HADECS2 = ones on gantry above lanes = old tech now and certainly in my neck of the woods on M62 and M1 none of them work anymore.
HADECS3 = ones on shelf to the side of gantry = latest tech, can enforce speed limit across 5 lanes from one device and are apparently now enforcing NSL when no temp limit in force too from evidence posted in this thread.
You get warning you're approaching a HADECS3 installation as you'll see a line of 3 CCTV cams on a pole about 400 yards before it : Clicky. Those trigger at the same time as the speed camera on the gantry and take a pic of the speed limit being displayed on the VMS boards at the time. Once you see that pole with the cams on, that's the time to start slowing down from a ton to something more sensible.
Also note there are some HADECS3 installations on the smaller VMS boards : Clicky. These ones only have 2 CCTV cams on a pole before them rather than the usual 3.
Can confirm this is accurate as the M25 one (between A3 and M3) has 3 sets of CCTV just before the hadecs camera, both sides of M25 eg in either direction.HADECS3 = ones on shelf to the side of gantry = latest tech, can enforce speed limit across 5 lanes from one device and are apparently now enforcing NSL when no temp limit in force too from evidence posted in this thread.
You get warning you're approaching a HADECS3 installation as you'll see a line of 3 CCTV cams on a pole about 400 yards before it : Clicky. Those trigger at the same time as the speed camera on the gantry and take a pic of the speed limit being displayed on the VMS boards at the time. Once you see that pole with the cams on, that's the time to start slowing down from a ton to something more sensible.
Also note there are some HADECS3 installations on the smaller VMS boards : Clicky. These ones only have 2 CCTV cams on a pole before them rather than the usual 3.
Edited by All that jazz on Saturday 13th August 21:37
TX.
littlebasher said:
They've not been painted yellow yet, so assume that they're not enforcing at the moment. In fact, I'm not sure that entire stretch is considered 'complete' yet, so probably still in the testing phase.
That one further South near Nottingham has had a coat of paint though!
The colour of them has nothing to do with whether they are live or not.That one further South near Nottingham has had a coat of paint though!
FurtiveFreddy said:
littlebasher said:
They've not been painted yellow yet, so assume that they're not enforcing at the moment. In fact, I'm not sure that entire stretch is considered 'complete' yet, so probably still in the testing phase.
That one further South near Nottingham has had a coat of paint though!
The colour of them has nothing to do with whether they are live or not.That one further South near Nottingham has had a coat of paint though!
Nigel Worc's said:
Zod said:
Nigel Worc's said:
I've seen what was identified on here to me as a "hadecs system" activating regularly on the M1 whilst the standard NSL is in force.
Where, please?All drivers like me are going to do is floor it between gantries and brake down to GPS 80 at them in case of cameras. That's good for emissions and road safety 
You will also get other more brain dead drivers who brake at gantries 'just-in-case' even thought they're only doing 70-ish, or 65 or whatever, again great for road safety
You will also get other more brain dead drivers who brake at gantries 'just-in-case' even thought they're only doing 70-ish, or 65 or whatever, again great for road safety
Terminator X said:
Also perhaps worse than that, as they become more well known, will people be getting distracted every time they pass a gantry whilst looking for hadecs camera's. I find myself looking for them now. Yes I could drive everywhere at 70 to avoid a ticket but for me it's simply a daft low limit in 2016. Before the speed brigade gang up on me a true 80 (perhaps 85 on speedo) would be fine on a motorway.
Unfortunately, even if some drivers take one for the team and have an accident, admitting that they were texting at the time because the limit is so low that they didn't need to concentrate, I can't see any cameras being removed or turned off. This is an irreversible process. As intimated above, time to seek out the unwatched motorways and minor roads.Edited by speedking31 on Monday 22 August 23:38
Terminator X said:
Also perhaps worse than that, as they become more well known, will be people getting distracted every time they pass a gantry whilst looking for hadecs camera's. I find myself looking for them now. Yes I could drive everywhere at 70 to avoid a ticket but for me it's simply a daft low limit in 2016. Before the speed brigade gang up on me a true 80 (perhaps 85 on speedo) would be fine on a motorway.
TX.
I have this issue when driving around the M25, I'm now that driver who will drive along at a GPS 80 (indicated 85 in my car), then at every gantry slow down to a GPS 75 (indicated 80) just in case there's a camera hiding somewhere.TX.
I used to appreciate speed cameras when I was younger (when I was about 10, maybe 11?) as they only ever seemed to be put in sensible places, such as near schools etc, but now they just seem to be putting them in on roads which really don't need them, and are now becoming a bit more sneaky about where they're positioned simply because they're a convenient way of raising revenue. When I was younger I was genuinely very fanatical about sticking to speed limits and always made sure my parents were sensible and stuck to speed limits as I had quite a bit of indoctrination at school where the whole rhetoric of "BELOW SPEED LIMIT: GOOD. ABOVE SPEED LIMIT: BAD" kinda crap has been hammered in. But now I'm 18, and have been driving for less than 2 years, speed limits can kiss my ass. Sure, the 30's and 20's around town etc are very fair, and I accept them totally, but making me do 70 at 9pm on the motorways is certainly eroding my respect for the speed limits. Especially when I quite happily drove along at a GPS 80 to 85 on the M4 all the way home from visiting a friend in Wales, except for the places where there was a variable speed limit, and I stuck to a GPS 75.
If you tell me to do something, and I can see the reasoning behind it, I will do as you ask. If you tell me to do something, and you refuse to tell me why you want me to do it, I'm going to tell you to f
k off and go do something else.Pete317 said:
The reason I asked is that, despite looking very long and hard, I haven't managed to find anything definitive.
Probably because its all behind a paywall. This would probably contain the information you need:
http://trrjournalonline.trb.org/doi/abs/10.3141/20...
Edit: Indeed it looks like it does.
Taken from the paper:
A speed limit of 50 mph was found to be the main contributor to modified aggregate traffic flow behavior that could be exploited toward more efficient traffic flow. The 60-mph VSL was found to have a moderate impact, whereas the 40-mph VSL could be used at high occupancies in the interest of traffic safety rather than traffic flow efficiency.
Edited by Matthen on Tuesday 23 August 18:44
I drove up the M1 and also used the M62 on Saturday. Sure enough, I spotted quite a few HADECS from Junction 26 (I think) onwards. One was in a 50 zone with average speed cameras and it was definitely policing it, given the number of idiots who got flashed. There were more HADECS on the M62, some of which were painted yellow (although one was obscured by trees, so the yellow was of little use).
The good thing is that you can spot them easily if you know what to look for.
The good thing is that you can spot them easily if you know what to look for.
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