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<div class="moz-cite-prefix">Imre,<br>
<br>
It is very good and surprising idea. <br>
<br>
I discovered on the page "Error categories" a tool
<a class="moz-txt-link-freetext" href="https://www.keepright.at/">https://www.keepright.at/</a> with the help of which I found already
dozens obviously misspelled tags. It functions quite intuitively,
just select "misspelled tags" check box and move the map to an
area of interest.<br>
<br>
Best regards,<br>
Oleksiy<br>
<br>
On 18.01.2018 15:48, Imre Samu wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAJnEWw==D93C98cPiSc3uBRk-+ibwnUshbCVO+LRvYxfCj3mNQ@mail.gmail.com">
<div dir="ltr">>What can I as a map editor do to keep these
data files to a reasonable size without compromising data
quality? <br>
<br>
According to the "Lean thinking" ( <a
href="https://en.wikipedia.org/wiki/Lean_thinking"
moz-do-not-send="true">https://en.wikipedia.org/wiki/Lean_thinking</a>
) we should focus on " eliminating waste"<br>
Waste is:<br>
* Any polygon or tagging errors ( because we can't use this
information, and need lot of space or processing resources )
or any from this: <a
href="https://wiki.openstreetmap.org/wiki/Error_categories"
moz-do-not-send="true">https://wiki.openstreetmap.org/wiki/Error_categories</a>
; etc<br>
* or any mapping errors ( bad street names ; routing problems:
waste for users )<br>
* or any not "UpToDate" data/information ( old phone numbers
- it is useless, so it is waste )<br>
<br>
some examples:<br>
<a href="http://area.jochentopf.com/stats/"
moz-do-not-send="true">http://area.jochentopf.com/stats/</a><br>
- Errors: Intersections<br>
- Errors: Duplicate nodes <br>
- Errors: Duplicate segments (<b> ~160.000</b>)<br>
- Errors: Open rings ( ~9.000)<br>
- Errors: Inner rings with same tags as outer rings<br>
- Errors: Wrong role ( <b>~ 700.000 </b>)<br>
<br>
some key problems: ( unused/bad keys is a waste )<br>
- <a
href="https://taginfo.openstreetmap.org/reports/characters_in_keys#problem"
moz-do-not-send="true">https://taginfo.openstreetmap.org/reports/characters_in_keys#problem</a>
( Keys with possibly problematic characters )<br>
- <a
href="https://taginfo.openstreetmap.org/reports/characters_in_keys#space"
moz-do-not-send="true">https://taginfo.openstreetmap.org/reports/characters_in_keys#space</a>
( Keys with whitespace )<br>
- or my favorite: <br>
--- <a
href="https://taginfo.openstreetmap.org/keys/latitude#values"
moz-do-not-send="true">https://taginfo.openstreetmap.org/keys/latitude#values</a><br>
--- <a href="https://taginfo.openstreetmap.org/keys/LAT#values"
moz-do-not-send="true">https://taginfo.openstreetmap.org/keys/LAT#values</a><br>
<br>
And we have lot of low quality imports we should fix. <br>
<br>
<span
style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:small;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">>What
can I as a map editor</span>
<div><br>
</div>
<div>imho: <br>
<div>Any quality assurance work helps a lot: <a
href="https://wiki.openstreetmap.org/wiki/Quality_assurance"
moz-do-not-send="true">https://wiki.openstreetmap.org/wiki/Quality_assurance</a></div>
<div>so fixing data problems in your area helps <span
style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:small;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">"eliminating
waste" and less waste is good for data size <br>
</span><br>
<br>
Imre<br>
<br>
<br>
</div>
</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">2018-01-18 6:14 GMT+01:00 Oleksiy
Muzalyev <span dir="ltr"><<a
href="mailto:oleksiy.muzalyev@bluewin.ch" target="_blank"
moz-do-not-send="true">oleksiy.muzalyev@bluewin.ch</a>></span>:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">Good
morning,<br>
<br>
I started to experiment with the OSM data [1] on a local
computer, and I begin to realize how big these data files
are. It takes quite a while to load into the local database
just the data for one country.<br>
<br>
What can I as a map editor do to keep these data files to a
reasonable size without compromising data quality? I mean
in the sense, - take care of the pennies and the pounds will
take care of themselves?<br>
<br>
I could think of the following three approaches so far:<br>
<br>
- using as short an URL as possible, website=<a
href="http://somewebsite.com" rel="noreferrer"
target="_blank" moz-do-not-send="true">http://somewebsite.com</a>
instead of website=<a href="http://www.somewebsite.com"
rel="noreferrer" target="_blank" moz-do-not-send="true">http://www.somewebsite<wbr>.com</a>
, three characters less; [2]<br>
<br>
- correct phone number ISO format, phone=+12 345 678 90 12
instead of phone=+12 (345) 678 90 12 , two characters less;
[3]<br>
<br>
- deleting unnecessary nodes from a way (Shift-Y in JOSM)
with consequent verification of its geometry;<br>
<br>
What else, if anything, could be done?<br>
<br>
[1] <a
href="https://wiki.openstreetmap.org/wiki/Downloading_data"
rel="noreferrer" target="_blank" moz-do-not-send="true">https://wiki.openstreetmap.org<wbr>/wiki/Downloading_data</a><br>
[2] <a
href="https://wiki.openstreetmap.org/wiki/Key:website"
rel="noreferrer" target="_blank" moz-do-not-send="true">https://wiki.openstreetmap.org<wbr>/wiki/Key:website</a><br>
[3] <a href="https://wiki.openstreetmap.org/wiki/Key:phone"
rel="noreferrer" target="_blank" moz-do-not-send="true">https://wiki.openstreetmap.org<wbr>/wiki/Key:phone</a><br>
<br>
With best regards,<br>
Oleksiy<br>
osm: Alex-7<br>
<br>
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moz-do-not-send="true">talk@openstreetmap.org</a><br>
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rel="noreferrer" target="_blank" moz-do-not-send="true">https://lists.openstreetmap.or<wbr>g/listinfo/talk</a><br>
</blockquote>
</div>
<br>
</div>
</blockquote>
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