On my final coarse the guy came out with “DVSA are trialing cameras mounted on overhead bridges that can calculate the weight of lorries to find overweight vehicles”. “It’s accurate to within 10%”.
I just can’t see how this is possible.
Yep, its a thing.
gov.uk/government/publicati … s-f0004537
Oh, I see. Weight sensors in the road surface and a camera to record the offending vehicles. That makes sense. Thanks.
No worries, finally a truthful “myth” comes out of a CPC 
[emoji23]He just didn’t explain it very well. If he’d have shown us that second link you posted all would have been made clear.
Been around for years. There’s one as you go past the entrance to Clackett Lane services clockwise and they pull offending vehicles in at the top of Reigate Hill.
There are ‘pads’ in the M4 as you come past Leigh Delamare, so they can pull into the weighbridge at Tormarten knowing you are already overweight.
They tested one on…
The A34 northbound near the Abingdon turn off many years ago.
Not sure if the strips are still across the carriageway or not these days.
Call me impressed, i would have sworn it was impossible to accurately weigh vehicles passing at motorway speeds, that really is some fantastic technology in action.
Juddian:
Call me impressed, i would have sworn it was impossible to accurately weigh vehicles passing at motorway speeds, that really is some fantastic technology in action.
The one I…
Mentioned at Abingdon didn’t work because it was never accurate so I was told.
rdc chat/waiting at the vbs machine/waiting for immigration/stood at the bar chat at bp carlisle/yadder yadder yadder
Juddian:
Call me impressed, i would have sworn it was impossible to accurately weigh vehicles passing at motorway speeds, that really is some fantastic technology in action.
Me too as when you go over the dinamic bridges too fast it fails to read . So an artic or any truck only has to glance the pads and they bypass the over weight system
nick2008:
Juddian:
Call me impressed, i would have sworn it was impossible to accurately weigh vehicles passing at motorway speeds, that really is some fantastic technology in action.Me too as when you go over the dinamic bridges too fast it fails to read . So an artic or any truck only has to glance the pads and they bypass the over weight system
solicitors4transport.co.uk/w … stem-wims/
A little bit about it here…
How does the System Work?
Goods vehicles travelling on motorways pass over a set of inductive loops and Peizo electric sensors set into the road surface, which weigh the vehicle while it is in motion. At the same time, the vehicle’s number plate is snapped by an adjacent ANPR camera. This information is paired and sent to the checksite some 7 – 10 miles downstream of the ANPR/WiMS site. If the goods vehicle is deemed to be overweight, its details are forwarded to enforcement officers in a stopping vehicle. The targeted goods vehicle is then directed to an official weigh bridge where it is weighed (amongst other checks). If found to be overloaded, a prohibition notice will be issued, preventing further use. Dependant on the degree of overloading, the driver and operator may also be prosecuted.
Not sure I’d call 271 pulled and 204 actually overweight as “extremely accurate” - so roughly for 1/3 it was wrong. And thats without knowing how many overweight ones it actually missed.
I believe there’s this system around Markham Moor on the A1 (Nottinghamshire) although not sure where they pull you.
Definitely sensors on the A46 at Tomarton as I got pulled there once and they knew my weight before I even went on the bridge.
I assume it’s accurate “enough” to give an indication as to whether a pull is required and then they put you on the weigh bridge for a accurate measurement.
trevHCS:
Not sure I’d call 271 pulled and 204 actually overweight as “extremely accurate” - so roughly for 1/3 it was wrong. And thats without knowing how many overweight ones it actually missed.I believe there’s this system around Markham Moor on the A1 (Nottinghamshire) although not sure where they pull you.
I think you are mis-reading the statement…Of the 271 vehicles identified by the equipment as being overloaded during organised road checks, all were overweight and 204 were overweight to the extent that they were prohibited.
If they are pulling the overweight vehicles by using this system, then they are leaving me alone.
shullbit:
trevHCS:
Not sure I’d call 271 pulled and 204 actually overweight as “extremely accurate” - so roughly for 1/3 it was wrong. And thats without knowing how many overweight ones it actually missed.I believe there’s this system around Markham Moor on the A1 (Nottinghamshire) although not sure where they pull you.
I think you are mis-reading the statement…Of the 271 vehicles identified by the equipment as being overloaded during organised road checks, all were overweight and 204 were overweight to the extent that they were prohibited.
If they are pulling the overweight vehicles by using this system, then they are leaving me alone.
…and to be pedantic, it’s way closer to 1/4 (67 didn’t get done, 67x4=268)!
the 67 that weren’t prohibited were STILL overweight! I got pulled at Preston by this system because my front axle was 60 kg overweight, probably an excuse to check the wagon over fully,…did i get a prohibition for being 60kg overweight, of course not…READ THE STATEMENT!!!
WIMS (weigh in motion) has been around since 2006 ish, theres now around 30 locations where they are fitted in the UK, almost every DVSA checkpoint has one on the approach