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A Mapping Anomaly

Posted: Sat May 11, 2019 1:54 am
by cody6268
I was measuring some distances last night on Microsoft Maps; and noticed something, a couple mailing addressses that do not exist nor did they ever. (besides we've only had regular street addresses for 15 years on my road; and that was the 911 Director's idea). And I can't recall seeing any of those addresses before. The house was listed as one of those nonexistent addresses, as was the lower field below the house on the property. Our address was, for some reason, up in the woods about 300 feet from the house. Some of the adjoining properties were the same--they again had nonexistent mailing addresses; and then again, also addresses that existed but did not line up with the actual property boundaries. We've been getting mail for refinancing loans for a "479" on my road. That address never existed, but according to the software, is on a lot that used to house a mobile home until about 10-12 years ago.

What the heck is going on? Was this the county or something the mapping software did?

Re: A Mapping Anomaly

Posted: Sat May 11, 2019 2:10 am
by cody6268
To sort of answer my own question; apparently it is something new as a part of a new feature (first half of 2019) on a piece of software called ArcGIS; which I presume Microsoft built elements into their mapping application. Apparently, those numbers were triangulated from existing ones. I have no idea how exactly to explain it--I'm calling a friend of mine who is a surveyor tomorrow; I only know surveying from what little I did for the merit badge in Scouts. And even what the software does really doesn't explain it enough. But the creator of the software has made several mistakes. The software seems to ignore actual property boundaries and surveying lines; and somehow put the house in the middle of the woods.

https://pro.arcgis.com/en/pro-app/tool- ... ocator.htm

To quote the website.
StreetAddress—A street address based on streets where the house number is interpolated from a range of numbers. This includes intersections, street name, and street extension.
and
PointAddress—A street address based on points that represent house and building locations. This includes Subaddress, which is based on points that represent house and building subaddress locations, such as suite, floor, or apartment.

Re: A Mapping Anomaly

Posted: Sat May 11, 2019 11:45 am
by Sharpnshinyknives
cody6268 wrote:To sort of answer my own question; apparently it is something new as a part of a new feature (first half of 2019) on a piece of software called ArcGIS; which I presume Microsoft built elements into their mapping application. Apparently, those numbers were triangulated from existing ones. I have no idea how exactly to explain it--I'm calling a friend of mine who is a surveyor tomorrow; I only know surveying from what little I did for the merit badge in Scouts. And even what the software does really doesn't explain it enough. But the creator of the software has made several mistakes. The software seems to ignore actual property boundaries and surveying lines; and somehow put the house in the middle of the woods.

https://pro.arcgis.com/en/pro-app/tool- ... ocator.htm

To quote the website.
StreetAddress—A street address based on streets where the house number is interpolated from a range of numbers. This includes intersections, street name, and street extension.
and

PointAddress—A street address based on points that represent house and building locations. This includes Subaddress, which is based on points that represent house and building subaddress locations, such as suite, floor, or apartment.
Cody, I can’t speak to the anomaly in the software, but I can attest to two different anomalies in boundaries from first hand experience. First was a farmer friend of mine. He was offered a plane ride over his fields and took it. When he looked at his fields he discovered that a neighboring farmer had moved the boundary markers and was now planting on his property. When confronted he admitted to his theft.
The second happened to us when we moved from a very small town of 200 people. This town was established in 1817. It had roads, alleys a blacksmith shop, school, grocery store and all kinds of things that all died off over the years. When we had our property surveyed for the house sale we lost half of our driveway. The crown of the road had moved since the town had been founded. Old alleys were no longer there and people had built over them or planted vineyards or whatever over these old alleys. So working off the established surveyor’s markings the surveyors, and I say plural because we had to hire a second one to verify the first one, discovered that just about every property was off in Blountsville by quite a bit. Some as far off as 80 to 100 feet. It’s from these kind of things that neighbor can turn on neighbor. Suddenly your neighbor discovers that you have a garage on his property or your garden is in the corner of his yard and now he demands his property line be respected. It makes for a hot mess. I can’t imagine what would happen if neighbors saw this on Google Earth and suddenly claims that your stuff is on his property? What a mess.
SSk