[Talk-us-massachusetts] Missing and unnamed streets

[Yury Yatsynovich]

Hi Jim!
I'd suggest that you find a shp-file for Acton in the folder
"massgis_counties_towns" following the link
https://mega.nz/#F!79Ny3KKL!JemAt7yZKSUctrza8QU4Tg and open it in JOSM --
the points in this shp-file will give you a hint where the streets that are
in MAD, but not in OSM, are located (the names of these streets are
summarized in the above posted ods-spreadsheet that you've mentioned).
If you find points in the shp-file that are wrong (located in the wrong
place or indicate the wrong name of the street) you can add their OBJECTID
to this Google Docs spreadsheet (later we'll let MassGIS know about these
points and will exclude them from imported data):
https://docs.google.com/spreadsheets/d/1BRMv2iwsg7ZMUiVwtP9JUD5xO8s98ucfVY_1F3DJDfc/edit?usp=sharing


On Wed, Aug 15, 2018 at 3:24 PM Jim Snyder-Grant <jim.snyder.grant at gmail.com>
wrote:

> I'm a bit rusty in OSM, but I know Acton well, and I can deal with ODS
> spreadsheets in LibreOffice and SHP files in QGIS.  I haven't followed all
> the technical detail, but I'd be happy to help.
>
> I think my first task is to look at the Acton streets listed in
>  https://mega.nz/#!TxlABapS!4MNK5R4UQEkeLjj1pNISufQMNgGs2Vl1YvLGFU4RU3A
> and evaluate them.
>
> What do I do next?
>
> If the street exists, and I can reliably locate it, I can add it to OSM. I
> just did that for the new "Cindy Lane":
> https://www.openstreetmap.org/changeset/61694902#map=17/42.44630/-71.43720
> Are there particular tags or changeset comments that would be best to use?
> (This one was particularly easy to locate, as the building at 1 Cindy Lane
> is already in OSM, and the street is already in Acton's online GIS at
> https://actonma.mapgeo.io )
>
> What should I do if I determine that a name in the spreadsheet is a
> mistake, either a misspelling of an existing street, or a street that
> doesn't exist yet, or what?
> Is there a place we are recording the disposition of streets?
>
> Sorry if this has already been covered. I've had a bit of eyes-glazed-over
> at the awesomely deep and careful technical comments.
>
> -jim
> <https://mega.nz/#!TxlABapS!4MNK5R4UQEkeLjj1pNISufQMNgGs2Vl1YvLGFU4RU3A>
>
> Jim Snyder-Grant
> 18 Half Moon Hill
> Acton MA 01720
> 508 572-2985
>
>
>
> On Wed, Aug 15, 2018 at 2:10 PM Yury Yatsynovich <
> yury.yatsynovich at gmail.com> wrote:
>
>> Greetings!
>> There is definitely no presumption that in any conflict between MAD and
>> OSM MAD is correct.
>> I've gone through problem address points (from fuzzy matches) in several
>> towns in Berkshire and my impression is that MAD is correct in 80-90% of
>> cases when OSM has some road names (I was looking at GIS maps by local
>> authorities, and Mapillary images for road signs -- that's why it also
>> takes me around 1 hour per town).
>> Another observation -- MAD points with housenumber=0 have much higher
>> probabilities of being at a wrong location than others.
>>
>> Here is the spreadsheet with streets that are in the unmatched MAD points
>> (after the fuzzy match), but not in the boundaries of corresponding towns
>> (9K in total, median -- 15 streets per town):
>> https://mega.nz/#!TxlABapS!4MNK5R4UQEkeLjj1pNISufQMNgGs2Vl1YvLGFU4RU3A
>>
>> As I posted earlier, the link to the files after the exact match (split
>> by towns): https://mega.nz/#F!ToFnGI6C!jcjnjc3753w4DcfaSLLAJg
>> Ideally, we would want to address all discrepancies (including those like
>> "Street" vs "Lane", "Muller's" vs "Mullers", "Hilltop" vs "Hill Top"), yet,
>> the amount of them is even larger than of those after the fuzzy match. So,
>> I would suggest posting on MapRoulette first the list of 9K streets from
>> the fuzzy match and, once those are done (manually, with checking multiple
>> sources on street names), we can address the discrepancies from the exact
>> match.
>>
>> Talking about the stacked points, I would import them (those that pass
>> our regular checks), converting into 1 point and combining the same fields
>> as addr:housenumber=1;3;5 etc. The share of addresses assigned to stacked
>> points in MAD is substantial: most multi-unit buildings have address points
>> at their centroids rather than at entrances.
>>
>> --
>> Yury Yatsynovich
>> _______________________________________________
>> Talk-us-massachusetts mailing list
>> Talk-us-massachusetts at openstreetmap.org
>> https://lists.openstreetmap.org/listinfo/talk-us-massachusetts
>>
>

-- 
Yury Yatsynovich
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