White Ford Falcon ADD166 is NOT a mufti cop

[scumdog]

I know this; GPS is accurate and it's not falsifiable - so what's not to be believed? The same cannot be said for some arsewipe cop with a quota to fill.

Not being smart BUT if you go down one side of a big dip and then up the other side does the GPS record your actual speed - or the speed between two points which when measured from above may actually be a shorter distance due to vertical variation???

And quotas aren't THAT hard to fill - there's enough bad/ignorant/unalert drivers on our road.

The cop may have believed his radar - just like the 'innocent' motorist might believe his GPS.

[Max Preload]

Not being smart BUT if you go down one side of a big dip and then up the other side does the GPS record your actual speed - or the speed between two points which when measured from above may actually be a shorter distance due to vertical variation???

And quotas aren't THAT hard to fill - there's enough bad/ignorant/unalert drivers on our road.

The cop may have believed his radar - just like the 'innocent' motorist might believe his GPS.

GPS records the velocity, which unlike plain speed has a vector (direction) component. That is it knows the speed AND direction. It's the distance travelled in the time taken between 2 points in 3D space. It is the true speed over the surface on which it is traveling. I'm not sure if the smarts built into the Stalker DSR as most commonly used accounts for direction when taking a speed reading but I doubt it. As such a reading taken of a vehicle travelling at any angle other than directly towards a radar unit, would be lower than actual speed. This includes vertical as well as lateral variation of the target vehicle.

[Ixion]

Tracking GPS works out speed every second or so (may quicker). It's a "speed at the moment" , pretty much the same deal as radar (totally different way of doing it of course). It's not an "average speed from A to B", which would be fooled by dips (and bends - ride round in a circle and the GPS thinks you've covered zero distance).

But it's not accurate enough (in non military form) to be considered as legally definative, though could be useful corroboration. And not certified either of course.

[Max Preload]

JP's are there as a symbolic gesture only. The chances of a charge/case being thrown out at a pre-depositions or depositions hearing, are next to zero.

It was a defended hearing.

[Max Preload]

But it's not accurate enough (in non military form) to be considered as legally definative, though could be useful corroboration. And not certified either of course.

The GPS receiver unit itself is the calculating part, but it does the calculation based on information from the satelites which does not differ as they are passive.

Prior to 2001 there was built in positional error that only the military had correction data for, but that has been removed. Now they're accurate to within about 4m depending on how many satelites are overhead sending information. There are also land based correction beacons (not in NZ) which can further tighten the accuracy. You must be aware however that the 4m does not jump from one extreme to the next - it's a steady error and it's displayed on the unit.

As for GPS not being recognised in law for accuracy, that may be the case - I'm no lawyer, however this guy I mentioned won at the High Court.

In any case, the pessimist in me says that the powers-that-be wouldn't want it recognised, as it doesn't suit their agenda.

[scumdog]

In any case, the pessimist in me says that the powers-that-be wouldn't want it recognised, as it doesn't suit their agenda.

What agenda would that be?

The one about people trying to watch their hand-held GPS while driving (and maybe using their cell-phone at the same time) to make sure they are not speeding?

Or the revenue one where they might get more speeding ticket money if they don't let them use GPS units?

I don't think so, the 'agenda' is all in your mind.

[Max Preload]

What agenda would that be?

The one about people trying to watch their hand-held GPS while driving (and maybe using their cell-phone at the same time) to make sure they are not speeding?

Or the revenue one where they might get more speeding ticket money if they don't let them use GPS units?

I don't think so, the 'agenda' is all in your mind.

Of course there's the blatant revenue collection component. You don't have to watch the GPS - it records the track data. As if people staring at their speedometer now isn't dangerous when they should be watching the road and mirrors!

It's about time they started cracking down on bad driving not just going for the easy target of speeding. The campaign a few months back where they blitzed multi lane intersections and ticketed drivers who turned right into the left lane and left into the right lane, now that's a step in the right direction. Shame it's only done at irregular times - bit of a show pony.

[Swoop]

By the way JP's only do traffic Defended Hearings...

Your baseless accusation that im making something up?? and then rambling on about the "donut shop" makes you look like your having a sulk! lol

My post has been clarified, just for you.

It appears that AT's case was a defended hearing. However JP's still remain a "judge with training wheels still attached" and do not make decisions in a grown up sense.

As for the donut shop. This IS where ALL cops spend their time, isn't it...

[scumdog]

As for the donut shop. This IS where ALL cops spend their time, isn't it...

We call it the 'donut shop' but that's just to make the office more bearable..'cos that's where I seem to spend most of my time (When not harrassing poor 'innocent' crims and motorists.)

[Jantar]

Not being smart BUT if you go down one side of a big dip and then up the other side does the GPS record your actual speed - or the speed between two points which when measured from above may actually be a shorter distance due to vertical variation???

This question of speed measurement accuracy depends on the GPS unit as well. My old GPS incated spot speed measurement taken each second. Its horizontal accuracy is very good, but vertical accuracy is not so good, so in one respect you would be quite correct to question its speed reading when there are changes in vertical speed as well as horizontal. My latest GPS is much more accurate in both horizontal and vertical planes and is settable for frquency of measurement. I have set it to record at all changes of direction, and at all changes of speed over 1 m/s (about 4 kmh).

Next time you call in here I'll show you what a typical track looks like.

[Manxman]

Why?

Are the police exempt from the laws of this country just because they enforce them?

Bad and dangerous driving only applies to us civilians?

here here. Works both ways.

[scumdog]

here here. Works both ways.

So cops can speed, wheelie etc as long as they don't get caught - and then whinge about it if they do get caught??

[Manxman]

So cops can speed, wheelie etc as long as they don't get caught - and then whinge about it if they do get caught??

Yeahhhh, er I mean Nahhhh.

I was agreeing to Mr Merde's sacrcastic comment re:cops being above the law - not. Or did I pick up his comment incorrectly???

[imdying]

The accuracy of the GPS unit (for vertical deviations) is for the most part definied by the number of satellites (or lack of) that it can see.

They don't cripple the GPS system for non military purposes, haven't done for a while now.

The lack of GPS tracking for speeding offences isn't because the police don't want it, it's because the public don't want it. Your conspiracy theory is backwards. You're essentially talking about a black box recorder in every vehicle, not much chance of people putting up with that.

[Dafe]

I had a dude on the motorway tailgating me once. I slammed my brakes on and dropped a good 40-50kph in my trusty old TC2500 Triumph. He then proceded to overtake me and when he was beside me, flashed me his Police badge in his wallet. Now that farked me off huge time!!!

I wound down my window and was calling him a F'n this and F'n that. I was waving at him furiously to pull over to the side of the road. The tosser sped up well over the speed limit and took off.

and I was just wanting a fight! Never mind, Am playing a footy team full of cops this weekend. Will dish out some smashes just for him!