Hi. I've been playing with my GPS maps, and have observed very strange
behavior in the route creation functions. I have done the following in
virtual mode, with the GPS receiver not connected.
First, I set a virtual address to 1794 Ridgewick Drive, Wickliffe,
Ohio. Then, I picked a destination about one mile northwest of my virtual
position, and told the BN to create a pedestrian route.
It created a route which was very circuitous, first going east, then north,
then west, then north, then east, then north, etc. This route was about
four miles long, and the trip could have been done with a much shorter and
more direct path.
Next, I moved my starting position about 500 feet further north, still on
Ridgewick Drive. I hoped the new route would be more reasonable, as I was
now past the original unnecessary turn to the east. I had hoped that a
route would be created, following streets north and west. However, I got
the message, "unable to create route.'"
The first route created was winding and strange, and it couldn't create a
route at all when I gave it a starting address a bit further north. What
is happening here? I am extremely familiar with the neighborhood, and I
picked addresses which I know to be valid. Why the strange winding route
in the first case, and no route created at all after a slight change in the
starting position?
I am preparing to use this GPS system for my own mobility, and I will soon
be training others to use it. However, my results so far suggest that the
system is not reliable enough to navigate an unfamiliar area. Any suggestions?
Doug Martin
- [Braillenote] gps-- strange route creation problems doug martin
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