[Talk-us-massachusetts] A simple check for addresses before the import, iteration #2

[Greg Troxel]

Thanks for posting by-town shapefiles.  I found the opendata plugin for
josm so they were easy to look at.  I am assuming they have been
converted to WGS84.


I looked at the Stow data.  Bottom line up front: two roads indicated
that exist, one that seems a little funny, one that seems highly
suspect. one one erroneous address point.

(I have the impression that Stow errors are low compared to other towns,
but I didn't look at other data yet.)  Certainly if the first import had
the non-problematic subset, that would be ok.

There are two instances of new roads that are not on OSM yet.  One
(Grove Hill Road) is now in osm as a driveway (in an apartment complex,
but I agree it's probably now a named road).  The other I have seen the
sign and read the news articles and not gotten around to.  Needs very
light field checking and adding*.

There is a point near Grove Hill that is labeled as Grove Hill, but it's
in Pilot Grove, the older apartments, and the Grove Hill MAD point is
just plain wrong.   Needs reporting to my town's address authority for
correction (but police and fire are well aware where things really are).

There are some points with a road name that is not in OSM, Stiles Farm
Road, for two buildings that have addresses in OSM on Maple Street, as
(old) L3 parcels says, but there is a cul de sac road layout visible in
L3 parcels, so the notion that it's been promoted to road is not crazy.
One point is in the middle of the house.  The other is perhaps at the
centroid of the house and the garage.  Needs field checking for a street
sign and confirming that a subdivision plan was approved.

There are 5 addresses for buildings in a cluster on Parker Road, that
are shown as all being in one lot on OSM, with a track going to them,
off a dirt road where there's a map note to see if they are really
there.  The cluster is so tight that it does not qualify for a
subdivision, so having a named road there does not make sense.  Needs
field checking and checking with the planning board.  This may turn out
to be a name for addresses for 911 purposes when the street does not
actually exist.

* Adding road names based on MAD one at a time, when there is no data in
  OSM, and a local mapper knows there is a new road, and the MAD value
  matches what they remember from the paper, counts in my book as hand
  mapping from a data source, vs a bulk edit.
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