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How to fix wrong navigation

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jimbohh

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Dec 29, 2009, 5:23:04 PM12/29/09
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I recently got a Nuvi 255W and tried it out yesterday, over a route
that I have used numerous times, which is both the fastest and the
shortest distance

It gave me a route that was WAY out of the way - which I took anyhow -
just to see if I might be wrong

It was by far longer and farther

I used "shortest time" for route preference and "Traffic" as the only
avoidance

The only thing that I can say that may have "fooled" it is that MY
route is largely over two lane roads (one in each direction)

I can't find any other setting which might help me

Can you help ??

TIA

JIMBO

ps56k

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Dec 29, 2009, 6:11:32 PM12/29/09
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"jimbohh" <ilpad...@hotmail.com> wrote in message
news:c52bad97-8ebe-48c7...@e37g2000yqn.googlegroups.com...

No - there is no feedback like with Tom Tom -

I also have wondered a couple of times how going "out of the way"
might actually be "faster". I think it just looks at the known/posted speed
limits
and adds up the time per segment travelled.

As a comparison - you might try Google Maps or Mapquest,
and see what it shows for your point A to point B...
You can then modify the map by dragging segments to different corners
to mimic "your" route or even the "Garmin" route,
and compare the estimated times...

Ed Pawlowski

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Dec 29, 2009, 11:03:46 PM12/29/09
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That is w hy I still use my paper maps at times. GPS is a great tool, but
sometimes the computer logic just does not work as well as it should.


who where

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Dec 30, 2009, 12:31:06 AM12/30/09
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Turn off ALL avoidances and try again. Avoiding "traffic" may well
have ruled out your route.

Mike Lane

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Dec 30, 2009, 4:51:36 AM12/30/09
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The only way you will be able to navigate by gps on EXACTLY the route that
you choose is to swap your unit for a more advanced model such as the Nuvi
755, or the 1450. These have what Garmin call "Multiple point routing" which
means you can set a number of via points so that it will follow exactly the
route you want.

I always do this before going on a long trip, otherwise, whatever avoidances
or preferences I set, the unit at some point will always choose roads that I
don't want to go on. You can adjust the route directly on the unit if
necessary, but it's much easier using a program such as MapSource (or better
still RoadTrip on a Mac).

--
Mike Lane
UK North Yorkshire
email: mike_lane at mac dot com

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