[Talk-us-massachusetts] Talk-us-massachusetts Digest, Vol 44, Issue 1

Greg Troxel gdt at lexort.com
Thu Jun 11 20:43:29 UTC 2020


Yury Yatsynovich <yury.yatsynovich at gmail.com> writes:

> Sorry, Greg, I could have explained in more clearly.
> Here is an example of a border between Newton and Watertown:
> The way (https://www.openstreetmap.org/way/142866017) is the border between
> Newton and Watertown and this way is, essentially, a duplicate of the
> Charles River stream. Wikipedia says "From Watertown to Waltham to Needham

I looked at this in OLIVER, and the boundary looks to be pretty
mid-point of their representation of water.  One can nitpick about the
exact points, but it looks pretty good:

http://maps.massgis.state.ma.us/map_ol/oliver.php?lyrs=2019%20Color%20Orthos%20(USGS)~Orthos_2019~|Structures~Basemaps_Structures~|Tax%20Parcels%20for%20Display~Basemaps_L3Parcels~|Detailed%20Features~Basemaps_MassGISBasemapWithLabels2~|Tax%20Parcels%20for%20Query~massgis:GISDATA.L3_TAXPAR_POLY_ASSESS~Blank_Polys_Max_18057|Massachusetts%20Towns%20Survey%20Boundaries~massgis:GISDATA.TOWNSSURVEY_ARC~GISDATA.TOWNSSURVEY_ARC::Default&bbox=-71.21519443000564,42.363946497684616,-71.21228423322435,42.365724173378744&coordUnit=m&measureUnit=m&base=MassGIS%20Statewide%20Basemap&center=-7927477.1998803,5215787.6488628&zoom=19&opacity=1,1,1,1,1,1&baseO=1&filt=undefined|undefined|undefined|undefined|undefined|undefined


Can you point to someplace where the MassGIS data is apparently wrong?


Or is this all about "there should be one way" rather than a data
quality issue?



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