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923 posts

Ultimate Geek
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  Reply # 690672 24-Sep-2012 15:22
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Thought about this thread a bit before posting. I am going with the assumption that the primary need for WOFs is safety, so I wondered what current proportion of accidents are caused by mechanical failure.

Found these and thought they might be interesting reading (page one of a google search for: reasons for car crashes):

http://policyprojects.ac.nz/thomasgoodman/
http://www.transport.govt.nz/research/MotorVehicleCrashesinNewZealand2010/

From the fatal driver crashes, about half were caused by booze/drugs, speed and failing to stop. I would suspect that these days mechanical faults would probably figure someway down the list.

That being the case, the question to me would be how much would that change by extending the WoF period. From the first reference, cars older than 1984 are 3 times more likely to result in a crash with a death, so depending on the age of our fleet, it may not have a large impact, as although the cars may not be as well maintained, perhaps they are more inherently safe from a design perspective?

However, I assume the bods in the Gubbmint have done more research than I just did and the cost savings for doing less WoFs outweighs the cost of the extra crashes.

Jon

2742 posts

Uber Geek
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  Reply # 690682 24-Sep-2012 15:34
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I'd still dearly love to see tightened WOF testing on noisy vehicles. There's no reason why any road legal car should be setting off car alarms when they go past at 50Km/hr. The same goes for bikes, particularly Harley's. A nice rumble is not the same as a deafening roar.




 
 
 
 


924 posts

Ultimate Geek
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  Reply # 690760 24-Sep-2012 17:53
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It's pretty easy to set off a car alarm with a legal vehicle. Especially if the alarm is set quite sensitive.
Harleys seems to be a different rule. I have no idea why and its stupid.

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  Reply # 691199 25-Sep-2012 15:26
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I believe the law is something along the lines of the exhaust must not be more than x dB above the stock level. As they're noisy straight out of the factory, they've got a lot of leeway.




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Uber Geek
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  Reply # 691211 25-Sep-2012 15:46
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stevenz: I believe the law is something along the lines of the exhaust must not be more than x dB above the stock level. As they're noisy straight out of the factory, they've got a lot of leeway.


The reasons for exhaust rejection at WOF can be found here:

http://vehicleinspection.nzta.govt.nz/virms/in-service-wof/general/exhaust/exhaust-system






Always be yourself, unless you can be Batman, then always be the Batman



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Uber Geek
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  Reply # 696549 5-Oct-2012 07:23
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I see MTA have set up a website http://www.handsoffthewof.co.nz/ where you can make a comment and vote on whether the changes to the WOF is good or not. They are obviously not very confident as they wont share the poll results. After my vote and comment that is a wise choice.

661 posts

Ultimate Geek
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  Reply # 696557 5-Oct-2012 08:02
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I lived for years in Germany. There, all cars needed to have a road worthiness check every two years. Age did not matter. Brand new or thirty years old.

Was there a problem with unsafe cars? No, not at all.

It is worth considering that motoring in Germany is a lot harder on a car then here. A lot of cars are regularly maxed out on the Autobahn and the winters are harsh in most parts of the country.

So, if two yearly checks are OK there, why do we need a WoF every six months?

Another issue to consider is that of our isolation.

Back in the early nineties, France had no requirement for a road worthiness check. A check was introduced then but not because the French felt that they had a problem with unsafe cars. At the end of 1992, the European Single Market came into effect. That meant that it was easy to take an old German registered car that was due for its check and sell it in France saving the need to pay for the inspection and fix any faults. So the French introduced checks not to maintain the safety of their cars but to keep out older German imports.

I do not think that we need tests more frequently than once every two years and perhaps not even that often. Why not just when cars are brought into the country?

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  Reply # 696564 5-Oct-2012 08:38
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The MTA must be getting desperate as I heard them advertizing on the radio this morning about the evils of 12 monthly WOFs as the road toll will climb in it is increased....




Regards,

Old3eyes


199 posts

Master Geek
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  Reply # 696566 5-Oct-2012 08:42
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old3eyes: The MTA must be getting desperate as I heard them advertizing on the radio this morning about the evils of 12 monthly WOFs as the road toll will climb in it is increased....


It's scaremongering nonsense at best. I question how many vehicles have accidents because of mechanical problems - and of those vehicles, how many of them have a WOF at all?

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  Reply # 696575 5-Oct-2012 08:57
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old3eyes: The MTA must be getting desperate as I heard them advertizing on the radio this morning about the evils of 12 monthly WOFs as the road toll will climb in it is increased....


I vaguely heard the ad as well, from memory they were saying 1/3 of vehicles on the road are dangerous? Surely that's proof the current system isn't working!


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Master Geek
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  Reply # 696577 5-Oct-2012 09:04
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sbiddle:
old3eyes: The MTA must be getting desperate as I heard them advertizing on the radio this morning about the evils of 12 monthly WOFs as the road toll will climb in it is increased....


I vaguely heard the ad as well, from memory they were saying 1/3 of vehicles on the road are dangerous? Surely that's proof the current system isn't working!



Those will likely the the third that don't have WOFs anyway...

gzt

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  Reply # 696584 5-Oct-2012 09:14
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jpoc: It is worth considering that motoring in Germany is a lot harder on a car then here. A lot of cars are regularly maxed out on the Autobahn and the winters are harsh in most parts of the country.


I'd have to disagree with some of that. German roads are in extremely good condition everywhere. Even city and suburb roads in NZ are horribly patchy and bumpy by comparison to German roads. Cumulatively this places a huge stress on cars. Even UK roads have much better surfaces than ours on average.

Maxing out an engine on a nice smooth and perfectly cambered autobahn places stress on the engine and not a whole lot else.

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Ultimate Geek
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  Reply # 696623 5-Oct-2012 10:12
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Cars ate not maxed out on autobahns as much as you might expect. Not all.are unrestricted, and traffic.often.slows it.all.down. plus not everyone uses autobahns all the time!

Until there is a massive culture change in nz drivers attitudes to maintenance extending.the wof time is just a plain idiotic idea.
NZers do not look after cars. Plain and simple, end of story.

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  Reply # 696625 5-Oct-2012 10:17
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It's interesting looking at the MTA stats on WOF failures. The most significant causes are lights, tyres and glazing/wipers

Where does personal responsibility come into this for people to ensure they have a roadworthy car with working headlights, tyres with tread and windscreen wipers that work?


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Uber Geek
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  Reply # 696638 5-Oct-2012 10:29
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sbiddle: It's interesting looking at the MTA stats on WOF failures. The most significant causes are lights, tyres and glazing/wipers

Where does personal responsibility come into this for people to ensure they have a roadworthy car with working headlights, tyres with tread and windscreen wipers that work?



Maybe we are looking at this the wrong way round. Maybe the whole reason people don't check these sort of things themselves is because we have WOFs so often. People don't check brakes, tyres etc because it is easier to just let it fail it's WOF and fix the problem then. If we had WOFs less often maybe people would take more responsibility for these things.

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