Phantom roads in rural areas

Peter H. Coffin wrote on Aug 5, 2010:


Navteq actually do. In some areas anyway:
http://www.pocketgpsworld.com/making-navteq-maps-a1038.php

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

Hi,


or it is a copy protection. Add a non-existing road to your network
and check others products for it. Do it for your own fun: Add such
road to OpenStreetMap.org and wait how long it takes until it is
available on Google Maps.
--

Ciao,
Holger (GUS-KOTAL, GUS#1100, GRR#51)

90-92 Honda CB400 10 Mm | 93-95 Yamaha TDM 850 26 Mm
95-97 KTM 620 LC4 13 Mm | seit 97 BMW R1100GS 69 Mm (Die Renndrecksau!)

cu @ http://www.issle.de

Kuskokwim wrote:


Garmin, Google et al. get datasets from various governments with vector
maps.

Even topographical maps sometimes have errors. I was one caught in a
situation where a topo map showed 2 bridges across a river in a certain
area. The second bridge were in fact a couple of fallen trees over the
river. (both sides of the river had a road near the short at that
point). From a satellite image, it probably looked like a bridge linking
the 2 roads.

Now, if a government map has a bridge there and they send this info to
Google, Google will put a bridge there too.


However, if you get your data from a more precise source, such as one
which gives you names of roads, then you are likely to not get such
errors. (often, a state/province or even municipality will provide map
data).

On Thu, 05 Aug 2010 13:36:56 -0400, JF Mezei


Makes me wonder how often a manual or automated mapmaking process
encounters a mislabelled feature, such as a boundary or contour line,
and calls it a road.

On Thu, 05 Aug 2010 16:01:33 -0400, Happy Trails wrote:


Or a wrinkle in the paper?

--
Gene E. Bloch (Stumbling Bloch)