[Talk-us-massachusetts] [Braintree buildings+

[Greg Troxel]

"Alan & Ruth Bragg" <alan.ruth.bragg at gmail.com> writes:

> Nice research Wayne. I don't have any answers but I did notice that the
> Bing imagery of Braintree was created during 8/31-9/24/2019.
>
> I've been looking at the houses on Boscobel Street, Braintree and trying to
> understand what we're seeing in the Massachusetts Interactive Property Map.

I did a little more looking around in a few places.  Sometimes the
outlines seem mostly unchanged (Stow) and just slightly shifted, for
most buildings.  They are also very close for buildings I hand traced
because they are new.

In Belmont, it seems that the new data is slightly more detailed (more
line segments in a building, sort of less summarization), and also the
building angles are different, but not all in the same direction.  I
would characterize this as the newer data is slightly different and
perhaps better, but I can't say the old data is bad/wrong.


It would be interesting to compare the apparently-problematic houses to
the various imagery sources, in addition to understanding how the shapes
were added.