Noise detection cameras? Illegal exhausts?

[NutsyUk]

https://www.theguardian.com/politics/2022/oct/18/noise-cameras-boy-racers-trial-road-users-legal-limits

So what's an illegal exhaust now?

Anything after market at all?
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Yamaha FZ8/Fazer800 (split headlight one) 2014, gingerly getting used to the massive increase in HP and not killing myself in the process! That was easy to get used to.
Kawasaki ER6F 2007 650 Gonna sell as a project bike!
Lexmoto XTR S 125 Sold!

[arry]

If you look at your V5C you'll find a drive-by decibel field within it. If your vehicle is new enough, it'll have data in that field.

My guess is it'll be linked to that. Older vehicles will probably get ignored (and taken off the road by various other means, scrappage schemes, congestion charging, etc etc etc).

[grr666]

There's one in Bristol apparently. Too bad the Spacker's days are numbered. Stock exhaust going back on next week
which is stamped 80db on the underside. Anyone know what the threshold is?
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Currently enjoying products from Ford, Mazda and Yamaha
Ste wrote: Avatars are fine, it's signatures that need turning off.

[redeem ouzzer]

I assume they’ll only be booking stuff new enough to be noise homologated then….
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Be a REAL MAN!

[xX-Alex-Xx]

How long until people stand under one with a bullhorn waiting for people to go past?
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DILLIGAF

[trevor saxe-coburg-gotha]

what would happen if you peeped your horn when you passed - would that put it over the limit, cos if it did, how can this work?
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"Life is a sexually transmitted disease and the mortality rate is one hundred percent."

Mobylette Type 50 ---> Raleigh Grifter ---> Neval Minsk 125

[Nobby the Bastard]

I'm pretty sure that most brass instruments will easily breach the decibel limit in the uk.
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trevor saxe-coburg-gotha:"Remember this simple rule - scooters are for men who like to feel the breeze on their huge, flapping cunt lips."
Sprint ST 1050

[Easy-X]

Euro 4 set the exhaust noise limit to 80dB whereas Euro 5 shifted that to overall engine noise. Goodbye dry clutches. Just looking at my V5 - XSR700 89dB (static) no idea what this is a measure of, exhaust or overall noise (or how you could tell which was which!)

TBH I don't even know if my bike is Euro 3 or 4. It's easy to look up such things for cars but not bikes on the VCA website. I'm assuming it's Euro 3 given first registration was May 2016, a bit early for Euro 4?
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Husqvarna Vitpilen 401, Yamaha XSR700, Honda Rebel, Yamaha DT175, Suzuki SV650 (loan) Fazer 600, Keeway Superlight 125, 50cc turd scooter

[redeem ouzzer]

My YR5 is 108db at 5500 rpm. It’s a historic vehicle and not subject to any noise legislation barring actually having an exhaust system. Is the system clever enough to realise when something is actually breaking the law rather than just being louder than The Who at Knebworth?
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Be a REAL MAN!

[Easy-X]

[arry]

[Easy-X]

Running purely by decibels it'd be hard differentiate between various vehicles but what makes a Ford Fiesta* annoying is the sound profile...

If I were to start with "I know a song that'll get on yer nerves..." you'd smack me no matter how quietly I sang it

* "with Carlos Fandango wheels" as my wife always puts it.
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Husqvarna Vitpilen 401, Yamaha XSR700, Honda Rebel, Yamaha DT175, Suzuki SV650 (loan) Fazer 600, Keeway Superlight 125, 50cc turd scooter

[grr666]

[MCN]

[ThunderGuts]

It does all seem extremely complex; the "drive by dB" is done at a certain throttle opening and speed, not while accelerating (I don't think anyway). If someone is overtaking at that moment in time, the dB level will be elevated. Lots of factory-standard sporty cars, as above, have maps these days that deliberately (and annoyingly) pop/fart on gear changes and this can be very loud sometimes; I suspect the standard noise testing doesn't pick this up because you have to be in sport mode, ragging etc. etc. to get that noise, rather than trundling past. Sound reflects a lot; while noise meters can be very targeted, how do you eliminate any other noise sources that might be louder?

I think the only possible thing they could really do is create a notification for plod (or VOSA) to go and check a vehicle afterwards where they think it might be in breach, rather than directly issue a fine, assuming the vehicle is still non-compliant when they look at it. It's not like you've got a simple visual evidence stream like you have with speed, it's so much harder to produce something concrete without an in-person test.

The govt is being actively squeezed to save money everywhere possible right now; this is nothing like speed cameras and I can't believe a noise enforcement system will ever pay for itself, especially if they have to rely on in-person verification of offences. The trail would have been sanctioned before "the big squeeze" - I doubt we'll hear much more of it (no pun intended).
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TG.

[xX-Alex-Xx]

[P.]

They are making everything increasingly harder to argue against driving and riding without number plates.

[ThunderGuts]

[Capt Sisko]

[Copycat73]

One of the targets of this camera will be the mot. Testing stations that have issued a pass on a vehicle that should have failed .. or fraudulent mot station.. as is the expression used by DSA .. it's been comming for some time .. and now it's almost here.. pay the fine or fit a quiet exhauste .. as per vehicle requirements..
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caveat emptor

[Robby]

This is being seen as the thin end of a wedge, when it might not be.

People taking the piss in urban areas is a nuisance. Technology like this could help, if the decision-making behind it is any good. As Easy-X has mentioned, the noise profile is important. A barryed-up fiesta varying the revs and doing backfires is a lot more annoying than the HGV or train making a constant loud noise.

The issue is that speed cameras could have gone a similar way, and all over the country various layers of government took the piss, so we had cameras on safe, fun country roads because they caught more people (and so made more money and better stats) than cameras in actual accident black spots.

There is no good solution here. You can ignore the problem, which doesn't improve anything. You can use technology which will follow a defined set of rules to decide if something is too loud, but there will be false positive and false negatives because technology is stupid. Or you can have it done by humans, generally police, which is flawed because humans are biased and police are bastards.

20 years ago, BCF was full of discussions about disabling speed cameras. These days, battery-powered angle grinders are cheap and scrap metal is worth a bit.

[grr666]

It's a little annoying, the exhaust I bought for my MT09 was a Yamaha approved, warranty friendly unit, bought from and
installed at Fowlers, at the time it was the cheapest Akra full system for the MT09, a good 500 notes less than the next one
up in the range, admittedly it's clearly marked as not road legal but none the less I can see how some may be caught out by
thinking that what they bought was legit. It's coming off next week and the stock pipe going back on and I'm trading the 09 in
two days after that. The used prices for that particular system are akin to what I paid full price for it so I should get a few
quid back in my bin, I'm not sure you can get the race system anymore which may be why the residual value is so high.
It should go some way to pay for the titanium Akra silencer I've specced on the new bike which was a whopping 950 quid.
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Currently enjoying products from Ford, Mazda and Yamaha
Ste wrote: Avatars are fine, it's signatures that need turning off.

[MCN]

[xX-Alex-Xx]

[MCN]

No post exits.
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Disclaimer: The comments above may be predicted text and not necessarily the opinion of MCN.