speeding

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T

Tony

Guest
S3 88"

Yes I've been camera'ed for 36 in a 30, I reckon i shoud get a medal for it,
old smeely only gets upto 50 on a fair down hill stretch and this was
uphill.

I'm sure i was only doing between 29 and 33 according to the bouncing
speedo, i've got I think a nornmal speedo not a '7.50' tyre speedo, (if you
understand). Will this make my speed read high or low. IS it possible to
get engineeers report to use as evidencve that I was unknowingly speeding?
Is it a posible get out of jail free card, any other ideas?

Thanks T


 
In message <[email protected]>, Tony
<[email protected]> writes
>S3 88"
>
>Yes I've been camera'ed for 36 in a 30, I reckon i shoud get a medal for it,
>old smeely only gets upto 50 on a fair down hill stretch and this was
>uphill.
>
>I'm sure i was only doing between 29 and 33 according to the bouncing
>speedo, i've got I think a nornmal speedo not a '7.50' tyre speedo, (if you
>understand). Will this make my speed read high or low. IS it possible to
>get engineeers report to use as evidencve that I was unknowingly speeding?
>Is it a posible get out of jail free card, any other ideas?
>
>Thanks T
>
>
No. What you will get is done again for not having an accurate speedo -
in addition to being done for speeding.
--
hugh
Reply to address is valid at the time of posting
 
On Mon, 13 Dec 2004 22:20:30 GMT, "Tony" <[email protected]> wrote:

>I'm sure i was only doing between 29 and 33 according to the bouncing
>speedo, i've got I think a nornmal speedo not a '7.50' tyre speedo, (if you
>understand). Will this make my speed read high or low.

Borrow a GPS, time yourself over a known distance or get someone to
drive at certain speeds in their car infront of you, and work out how
far out your speedo is.
If you have bigger than standard wheels/tyres on then your speedo will
read lower than your actual speed.

I have a LWB S3 speedo on my SWB with bigger tyres and at 30mph actual
speed it says about 25mph. likewise, at 40mph actual It reads just
below 35.

I always try and find someone to follow through speed cameras (and
match their speed or go slower) as it makes me feel safer!
 
On Monday, in article
<[email protected]>
[email protected] "Tony" wrote:

> S3 88"
>
> Yes I've been camera'ed for 36 in a 30, I reckon i shoud get a medal for it,
> old smeely only gets upto 50 on a fair down hill stretch and this was
> uphill.
>
> I'm sure i was only doing between 29 and 33 according to the bouncing
> speedo, i've got I think a nornmal speedo not a '7.50' tyre speedo, (if you
> understand). Will this make my speed read high or low. IS it possible to
> get engineeers report to use as evidencve that I was unknowingly speeding?
> Is it a posible get out of jail free card, any other ideas?

Bigger tyres will make the speedo under-read the speed. Which is, AIUI,
illegal under construction and use regulations.

And other speedo defects aren't going to get you out of it either.

If you have 7.50 tyres and the normal speedo, and had an indicated speed
slightly over the limit, 36 sounds about right.

I don't recall the details, but there is apparently a little number on
the front face which can tell you the speedo calibration.

--
David G. Bell -- SF Fan, Filker, and Punslinger.

Wrought under license granted by Her Majesty's Apostropher Royal AD MMIV
 

>
> Yes I've been camera'ed for 36 in a 30, I reckon i shoud get a medal for
it,
> old smeely only gets upto 50 on a fair down hill stretch and this was
> uphill.
>
> I'm sure i was only doing between 29 and 33 according to the bouncing
> speedo, i've got I think a nornmal speedo not a '7.50' tyre speedo, (if
you
> understand). Will this make my speed read high or low. IS it possible to
> get engineeers report to use as evidencve that I was unknowingly speeding?
> Is it a posible get out of jail free card, any other ideas?
>
You could probably do some calculations on how accurate your speedo is based
on the 100 meter markers found on motorways and dual carriageways. Get upto
60kph (about 37Mph), then count 10 markers on the side of the road and get
someone to time you, whilst maintaining a constant 60 kph. If your speedo
is accurate it should take you exactly 1 minute to get to the 10th marker.
if you get there in less than 60 seconds then youre going faster than your
speedo says it it, if its longer then your're going slower than you think.
Its not exactly scientific or 100% accurate but it'll give you a good idea.

This won't help you in this case but at least you'll know for the future.

Paul


 
I remember seeing a program on the box about speeding.
It basically says - all vehicles are allowed +/- 10% accuracy on the speedo
(to do with tyre wear, manufacturing tolerances etc). Then the general rule
for the police is to allow the driver +2mph leeway on the upper limit.
So for a 30mph limit you would be legally allowed to get away with doing
35mph (3mph being 10% of 30mph and adding 2mph leeway).
36mph - unlucky.
I have larger tyres fitted to Jasmine and have checked my speedo against
motorway markers and using GPS. It seems to be absolutely spot-on! I can
only assume that it is more inaccurate using the standard tyres!!!

Stew.

--

1990 LR Ninety 2.5D N/A (Jasmine) with bits on!
2002 Freelander Td4 ES (wifes)


""David G. Bell"" <[email protected]> wrote in message
news:[email protected]...
> On Monday, in article
> <[email protected]>
> [email protected] "Tony" wrote:
>
>> S3 88"
>>
>> Yes I've been camera'ed for 36 in a 30, I reckon i shoud get a medal for
>> it,
>> old smeely only gets upto 50 on a fair down hill stretch and this was
>> uphill.
>>
>> I'm sure i was only doing between 29 and 33 according to the bouncing
>> speedo, i've got I think a nornmal speedo not a '7.50' tyre speedo, (if
>> you
>> understand). Will this make my speed read high or low. IS it possible to
>> get engineeers report to use as evidencve that I was unknowingly
>> speeding?
>> Is it a posible get out of jail free card, any other ideas?
>
> Bigger tyres will make the speedo under-read the speed. Which is, AIUI,
> illegal under construction and use regulations.
>
> And other speedo defects aren't going to get you out of it either.
>
> If you have 7.50 tyres and the normal speedo, and had an indicated speed
> slightly over the limit, 36 sounds about right.
>
> I don't recall the details, but there is apparently a little number on
> the front face which can tell you the speedo calibration.
>
> --
> David G. Bell -- SF Fan, Filker, and Punslinger.
>
> Wrought under license granted by Her Majesty's Apostropher Royal AD MMIV


 
Mr.Nice. wrote:

>
> how accurate is the speed displayed by a gps?

Accurate enough for the courts here to accepted it as a defence a couple
of weeks ago - bloke challenged the accuracy of a radar unit and won.

--
EMB
 
90ninety vaguely muttered something like ...
> I remember seeing a program on the box about speeding.
> It basically says - all vehicles are allowed +/- 10% accuracy on the
> speedo (to do with tyre wear, manufacturing tolerances etc). Then the
> general rule for the police is to allow the driver +2mph leeway on the
> upper limit. So for a 30mph limit you would be legally allowed to get away
> with doing
> 35mph (3mph being 10% of 30mph and adding 2mph leeway).
> 36mph - unlucky.
> I have larger tyres fitted to Jasmine and have checked my speedo against
> motorway markers and using GPS. It seems to be absolutely spot-on! I can
> only assume that it is more inaccurate using the standard tyres!!!

You're almost right. The tolerance for manufactured cars and their speedo
reading is +10% not +/- All speedos should read at or below the actual
vehicle speed. ie if your speedo reads 30 then you're doing 30 or less .. if
you're doing 30 in real life your speedo might be reading 33 ... ;)

I have 31 x 105 BFFG AT's on my Disco and the speedo is now absolutely
spot-on as checked with GPS .. with new stock tyres it underreads, as per
the legal requirelments, by 5%.

--
Paul ...
http://www.4x4prejudice.org/index.php
"A tosser is a tosser, no matter what mode of transport they're using."
(8(|) Homer Rules !!!


 
On Tue, 14 Dec 2004 09:22:31 -0000, Pacman wrote:

> You could probably do some calculations on how accurate your speedo
> is based on the 100 meter markers found on motorways and dual
> carriageways. Get upto 60kph (about 37Mph), then count 10 markers
> on the side of the road ...

Hum 37mph in lane 1 of a motorway is almost asking someone to shunt
you. B-)

Be a bit safer to make it 90kph (55mph) and 10 posts in 45sec or 15 in
60s? Do several timed counts and take an average.

--
Cheers [email protected]
Dave. pam is missing e-mail



 
Just bend over and accept it like a man, and think of all of the times that
you were n't caught.


 
Speeding???

Now thats DEFINATELY off topic for a landrover group!!!!!

;-)


 
Mr.Nice. wrote:
>
> how did he prove that his gps was showing x speed? did he simply
> kick-up a fuss based on what his gps told him and forced them to check
> the calibration of the radar? interesting that..


I guess it was logging speed data. There's a link to the news article
below - doesn't say much except he got off.

http://www.nzherald.co.nz/index.cfm?ObjectID=3596433


--
EMB
 
Sorry, but if you didn't exceed the speed limit then you wouldn't have got
caught. I drive 60,000 miles a year and I have been caught twice before
(Although I only have 3 live points on my licence).
I know we all hate speed cameras but its a fact that speed does contribute
to road deaths and I was driving too fast - It taught me a lesson. I have a
radar detector in the car still but now drive on motorways at no more than
70 and never exceed the trunk road speed limits - God bless cruise control.

Sorry if I am coming across less than sympathetic but if your speedo is
bouncing and your tyres are not standard this will affect your speed and its
your responsibility to sort these out.

Merry Christmas

Stu



"Tony" <[email protected]> wrote in message
news:[email protected]...
> S3 88"
>
> Yes I've been camera'ed for 36 in a 30, I reckon i shoud get a medal for
> it, old smeely only gets upto 50 on a fair down hill stretch and this was
> uphill.
>
> I'm sure i was only doing between 29 and 33 according to the bouncing
> speedo, i've got I think a nornmal speedo not a '7.50' tyre speedo, (if
> you understand). Will this make my speed read high or low. IS it possible
> to get engineeers report to use as evidencve that I was unknowingly
> speeding? Is it a posible get out of jail free card, any other ideas?
>
> Thanks T
>
>


 
Mr.Nice. wrote:

> On Mon, 13 Dec 2004 23:25:56 +0000, Tom Woods <[email protected]>
> wrote:
>
>>On Mon, 13 Dec 2004 22:20:30 GMT, "Tony" <[email protected]> wrote:
>>
>>>I'm sure i was only doing between 29 and 33 according to the bouncing
>>>speedo, i've got I think a nornmal speedo not a '7.50' tyre speedo, (if
>>>you
>>>understand). Will this make my speed read high or low.
>>
>>Borrow a GPS, time yourself over a known distance or get someone to
>>drive at certain speeds in their car infront of you, and work out how
>>far out your speedo is.
>>If you have bigger than standard wheels/tyres on then your speedo will
>>read lower than your actual speed.
>>
>>I have a LWB S3 speedo on my SWB with bigger tyres and at 30mph actual
>>speed it says about 25mph. likewise, at 40mph actual It reads just
>>below 35.
>>
>>I always try and find someone to follow through speed cameras (and
>>match their speed or go slower) as it makes me feel safer!
>
> how accurate is the speed displayed by a gps?
>
>
> Regards.
> Mark.(AKA, Mr.Nice.)

Provided satellite geometry and reception are good - much more accurate than
any speedo since the Yanks dropped selective availability.

In Victoria a few months ago the driver of a Datsun 120 succeeded in proving
in court that his car could not possibly have been doing the speed it was
booked at (about 160kph I think). This resulted in the authorities
admitting that there was no check on the accuracy of their cameras and the
refund by the government of tens of million in fines. Not to mention the
embarrassment for the government - especially when it was revealed that the
contract to supply the cameras was awarded to a company that another
government department already had on their black list.
JD
 
On 2004-12-14, SimonJ <[email protected]> wrote:

> Now thats DEFINATELY off topic for a landrover group!!!!!

Oh I dunno, I've been caught speeding 5 times in the last 10 years but
they've only made it stick twice. Considering I've got three cars of
varying capabilities the fact that all 5 times have been in the landy
is quite surprising! No speed-trap detectors in any cars either.

--
For every expert, there is an equal but opposite expert
 
On or around Tue, 14 Dec 2004 19:18:09 +0000 (UTC), "Stuart Adair"
<[email protected]> enlightened us thusly:

>Sorry, but if you didn't exceed the speed limit then you wouldn't have got
>caught. I drive 60,000 miles a year and I have been caught twice before
>(Although I only have 3 live points on my licence).

and of course, all speed limits are completely reasonable, sensible and
entirely justified, based on the road, the amount of traffic, the weather...

Perish the thought that our masters would put up a 50mph limit on the open
road for the express purpose of putting up a speed camera.

But I agree with the comment about getting caught. I often exceed speed
limits, and touch wood I've not been caught. This is 'cos in addition to
not speeding in stupid places like in towns I also keep a sharp eye out for
police and speed traps.

IMHO, probably about 70% of the speed limits are reasonable inasmuch as any
fixed limit can be reasonable. Probably about 25% are too low, and there
are likely at least 5% which are too high.

but back to my first comment. The "safe"[1] maximum speed varies with many
factors and as such a fixed limit is a poor solution at best.

[1] of course, there's no such thing as "safe", in this case "safe" is that
speed at which the risks are reasonably low - which is also vague. I
suppose you could quantify risk for each of several classes of RTA, such
that you have for example say a 0.01% chance of killing pedestrians, 0.02%
of injuring pedestrians, and so on.

but there's no such thing as safe. Some time back, a car was stopped at a
roadworks traffic light, which was red, and was hit at speed from behind by
a police vehicle which was engaged in "high speed driver training",
resulting in the death of one of the occupants of the said car. I forget
the details of the punishment, but it was something like 6 months ban from
driving. wonder what I'd have got in the same circumstances?

 

90ninety wrote:
> I remember seeing a program on the box about speeding.
> It basically says - all vehicles are allowed +/- 10% accuracy on the speedo
> (to do with tyre wear, manufacturing tolerances etc). Then the general rule
> for the police is to allow the driver +2mph leeway on the upper limit.
> So for a 30mph limit you would be legally allowed to get away with doing
> 35mph (3mph being 10% of 30mph and adding 2mph leeway).

SG: Don't confuse what the Police will allow you to do with what is
legal. If the Chief Constable declares a zero tolerance attitude (as
they did in Avon & Somerset for a while) then 31 in a 30 limit will get
you a ticket.

As others have said already. The tolerance on speedo's is +10%, -0: if
your speedo reads less than you're actually doing then it's illegal -
it's one of the reasons very few speedos actually read zero when you're
stopped. They often start at 5 or even 10mph.

> 36mph - unlucky.
> I have larger tyres fitted to Jasmine and have checked my speedo against
> motorway markers and using GPS. It seems to be absolutely spot-on! I can
> only assume that it is more inaccurate using the standard tyres!!!
>
> Stew.
>

Regards
Steve G
 
Whilst I don't condone speeding under any circumstances and personally
make every reasonable effort to ensure I don't speed myself, I do have
some sympathy for those unfortunate enough to be caught on camera.

Just about your only GOOJF card is if the authorities took longer than
14 days to issue the NOIP (notice of intention to prosecute).

Regards

Steve G


Tony wrote:
> S3 88"
>
> Yes I've been camera'ed for 36 in a 30, I reckon i shoud get a medal for it,
> old smeely only gets upto 50 on a fair down hill stretch and this was
> uphill.
>
> I'm sure i was only doing between 29 and 33 according to the bouncing
> speedo, i've got I think a nornmal speedo not a '7.50' tyre speedo, (if you
> understand). Will this make my speed read high or low. IS it possible to
> get engineeers report to use as evidencve that I was unknowingly speeding?
> Is it a posible get out of jail free card, any other ideas?
>
> Thanks T
>
>
 
On 2004-12-14, Austin Shackles <[email protected]> wrote:

> Perish the thought that our masters would put up a 50mph limit on
> the open road for the express purpose of putting up a speed camera.

There is apparently another reason for this, I can't remember much of
the details (as usual) but in another forum I'm part of someone was
complaining about the local council downgrading the status of a road.
This involved reducing the speed limit from 60 to 50, the reason they
did this was because if the road status is downgraded they don't have
to maintain it to the same standard as they used to, allowing them to
shave some money off the budget to spend on something more useful like
<cynic> another art gallery in the city </cynic>.

Can anyone supply any more detail to flesh out my as usual shady
recollection?

--
For every expert, there is an equal but opposite expert
 
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