Garmin GPS - Garmin GPS accuracry?

Author

Garmin GPS accuracry?

Scott C

2007-04-17, 10:33 pm

I have a somewhat new Nuvi 360 - and there are settings for Vehicle; Car,
Pedestrian, Bicycle, Truck, Bus, Taxi. Do I get better accuracy selecting a
person vs a car?

What I am finding when I am driving is that I sometimes parallel a road
selected and it thinks I'm on the other road - the one I'm paralleling - and
it's 30 years+ away from where I am. I thought the accuracy was 30' or 3'
depending on the WAAS setting.

sc

Colin Wilson

2007-04-17, 10:33 pm

> What I am finding when I am driving is that I sometimes parallel a road
> selected and it thinks I'm on the other road - the one I'm paralleling

I have a similar problem when I route home - for the 1/2 mile I drive
via a main road, as against the suggested back roads with speed humps,
and all instructions (not that I need them) are based on the defunct
route.

Jeffrey Kaplan

2007-04-17, 10:33 pm

It is alleged that Scott C claimed:

> I have a somewhat new Nuvi 360 - and there are settings for Vehicle; Car,
> Pedestrian, Bicycle, Truck, Bus, Taxi. Do I get better accuracy selecting a
> person vs a car?

You get different directions. Try this test: Find a one-way street
and place yourself at the one end. Enter a destination beyond the
beginning of the street and route it. First as if you were in a car,
then again as a pedestrian. The car routing should have you go around
the block, as far as necessary to find a street where it's legal to go
that way, and as a pedestrian it should ignore automotive "one way" and
"do not enter" rules.

> What I am finding when I am driving is that I sometimes parallel a road
> selected and it thinks I'm on the other road - the one I'm paralleling - and
> it's 30 years+ away from where I am. I thought the accuracy was 30' or 3'

You have a time traveling car? Is it a DeLorian?

> depending on the WAAS setting.

I've found that even when set to use WAAS, my c330 will often not
notice I've turned off the highway until I'm 40' or so away from it. In
some other places, it thinks I've missed the turn when in fact I have
not, particularly when the streets are both a) narrow and b) close
together.

--
Jeffrey Kaplan www.gordol.org
The from userid is killfiled Send personal mail to gordol

Peter's Top 100 Things I'd Do If I Ever Became An Evil Overlord, #86. I
will make sure that my doomsday device is up to code and properly
grounded.

Scott C

2007-04-19, 4:33 am

In case you could not figure out my "typo' Jeff, it was to say 30+ yards,
not years.. (try harder next time!)... I will try your test. I think it may
work.

sc

"Jeffrey Kaplan" <nomail@gordol.org> wrote in message
news:5kqa23dt3rle9o3
op3oktba66u65k1k693@
gordol.org...
> It is alleged that Scott C claimed:
>
Car,[color=darkred]
selecting a[color=darkred]
>
> You get different directions. Try this test: Find a one-way street
> and place yourself at the one end. Enter a destination beyond the
> beginning of the street and route it. First as if you were in a car,
> then again as a pedestrian. The car routing should have you go around
> the block, as far as necessary to find a street where it's legal to go
> that way, and as a pedestrian it should ignore automotive "one way" and
> "do not enter" rules.
>
and[color=darkred]
3'[color=darkred]
>
> You have a time traveling car? Is it a DeLorian?
>
>
> I've found that even when set to use WAAS, my c330 will often not
> notice I've turned off the highway until I'm 40' or so away from it. In
> some other places, it thinks I've missed the turn when in fact I have
> not, particularly when the streets are both a) narrow and b) close
> together.
>
> --
> Jeffrey Kaplan www.gordol.org
> The from userid is killfiled Send personal mail to gordol
>
> Peter's Top 100 Things I'd Do If I Ever Became An Evil Overlord, #86. I
> will make sure that my doomsday device is up to code and properly
> grounded.

2007-04-21, 3:33 pm

Scott C wrote:
> I have a somewhat new Nuvi 360 - and there are settings for Vehicle; Car,
> Pedestrian, Bicycle, Truck, Bus, Taxi. Do I get better accuracy selecting a
> person vs a car?
>
> What I am finding when I am driving is that I sometimes parallel a road
> selected and it thinks I'm on the other road - the one I'm paralleling - and
> it's 30 years+ away from where I am. I thought the accuracy was 30' or 3'
> depending on the WAAS setting.
>
> sc
>
>

Gamin tries to account for map errors on its automotive GPS's by
guessing where which road your on.

Look for road lock
http://gpsinformation.net/roadlock.htm
http://www.gpsinformation.net/gps5/g5review.htm

LinkBot