Post by who whereOn Fri, 8 Oct 2010 15:15:45 -0500, "ps56k"
<snip>
Post by who whereI turned off of a major freeway, Hwy 39 / 51. I turned right onto Hwy
153. Less than one mile from this freeway, (still on 153), I was
instructed to turn right into the parking lot of a factory (or the
water company), and make an immediate left (this made no sense at
all). I stayed on 153, going EAST thru Peplin, Bevent, Elderon, and
to to Whitcomb. There I turned Right onto Hwy 45 to Tigerton. In
Tigerton, I turned Left on Hwy M. Immediately after this turn, I was
instructed to turn Right and make then make another right. (that
would have taken me into the parking lot of a BP Gas Station. (of
course I ignored that too). I continued going East on Hwy M toward
Caroline. As I was entering the edge of Caroline, I was instructed
*three times* to make a Left into cornfields (there are no side roads
there at all).
Thats when I shut off the GPS because it was annoying me, and I was
entering my destination anyhow, (the Town of Caroline, Wisconsin).
I used my TomTom XL340S to take a look at the roads you mentioned and saw no
problem with the maps versus Google Earth. I purchased my unit November 2009
and enjoy it. I always use "Fastest Route" rather than "Shortest Route" to
make sure it doesn't push me down side streets and complicate matters. I
believe this is the default so this probably wasn't your trouble. I did see
on Wisconsin 153 the road is a divided highway for the first half mile east
of I-39. Since eastern- and western-bound lanes are only separated by a few
feet maybe your TomTom (whose position accuracy seems to be on the order of
30 feet) somehow thought you were eastbound on 153 "in the westbound lanes"
and wanted you to take a quick jog on one of the two crossovers I see near
the airport to get you onto the east-bound lanes. I'm actually amazed at how
well these GPS units seem to know where you are and sync you to the closest
road and direction. I have no theory on your turn onto County Road M or the
"cornfields" just west of Caroline. I agree, I would be very frustrated at
deciphering what was happening and would tempt to call the technology "not
ready for prime time" if it happened to me.
I used to program computers for a living so I view my GPS as a piece of
software. Consequently, it took me maybe four or five months of periodic
usage of the device to get all the information I felt I needed from its
display and voice. I have a tendency to "reverse-engineer" the software in
equipment so I feel I get the best usage of it. Since my XL340S has a wide
display I have changed from the default layout to one where the turn
instructions are displayed on the right edge of the screen and the map is
pretty much squarish on the left side of the screen. I turn off the 3D view
and use 2D straight-down viewing because it seems to give me more roads and
text displaying crossroad street names this way.
My XL340S screen displays 5 pieces of crucial information while driving
(1) Your next turn in the upper-right of the screen. This is an arrow
showing left or right turns ranging from a slight jog to 90-degree to acute
angle.
(2) The distance to this next turn in feet or miles, depending on how close
you are.
(3) The name of the next road you are supposed to turn onto displayed at the
very top of the screen. I have noticed this text can *momentarily* change to
give you assurance as you approach a "choice" in a road even though items
(1) and (2) remain the same.
(4) The current road you are on *and* your direction (NB, SB, EB, WB) at the
very bottom of the screen. If you forget what road you're on, look at this!
If this doesn't agree with what you know you are doing then the GPS is
probably going to replan and "surprise" you. Personally, I don't believe
I've ever seen a discrepancy on my unit, but it's got to happen sometime due
to accuracy limitations either in the map, the satellite reception, or a
road detour (like lane shift due to construction).
(5) The graphical road display itself with the route you're supposed to take
*highlighted* in a maroon color. This highlighting is quite valuable in
preparing for obeying items (1) and (2).
The voice uses items (1) (2) and (3) to speak instructions. If you have been
checking these items beforehand the voice virtually never surprises you with
its instructions.
I know I'm not your average user, but my mind tries to take in all five of
these fields on the screen so I can "keep ahead" of the GPS and avoid
surprises.
Tim