How to fix wrong navigation

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

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...

jimbohh wrote:

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.

On Tue, 29 Dec 2009 14:23:04 -0800 (PST), jimbohh


Turn off ALL avoidances and try again. Avoiding "traffic" may well
have ruled out your route.

jimbohh wrote on Dec 29, 2009:


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