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<div class="moz-cite-prefix">On 23/4/21 8:49 am, Bob Cameron wrote:<br>
</div>
<blockquote type="cite"
cite="mid:d94e31bb-c8dc-f671-fbaf-fb85c6176870@skymesh.com.au">
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<p>For interest only. The weblink below is for a site that creates
Garmin navigating device maps based on OSM data and in the
process generates an error list that affect routing etc.<br>
</p>
<p><a class="moz-txt-link-freetext"
href="https://alternativaslibres.org/errors/errors_Australia.zip"
moz-do-not-send="true">https://alternativaslibres.org/errors/errors_Australia.zip</a></p>
<p>Partial of the readme included in fileset;<br>
</p>
<p><i>This is a short description of the errors listed in the
files contained in errors.zip. All these errors can cause
routing to fail or that some elements in the map are not
displayed correctly. For each error listed, ID of the wrong
element and a link to download the area into JOSM or view it
in a web browser is given. If you want to improve the quality
of the maps, please spend some time fixing some of these
errors.</i><i><br>
</i></p>
<p><i>Roundabouts.txt: Roundabout XXX starts/ends/forks at...:
indicates that a way or a set of ways tagged as
junction=roundabout is/are not closed or has a portion going
out/coming in the roundabout.<br>
</i></p>
<p><i>Flares.txt: this file groups different problems affecting
the roads that connect a roundabout with other roads.</i><i><br>
<br>
Arcs.txt: Similar arcs XXX and YYY at...: indicates that XXX
and YYY ways are overlapping.</i><i><br>
<br>
Oneway_roads.txt: this file groups different problems
affecting oneway roads, going to/coming from nowhere.</i><i><br>
<br>
Turn_restriction.txt: this file groups different problems
affecting turn restrictions. Problems can be the lack or
excess of any of the turn restrictions elements or some of
them not connecting the others.</i><i><br>
</i><i><br>
Motorway_exits.txt: motorway_junction nodes must be placed on
roads with a ref tag, in order to process them correctly as
motorway exits. This file collects those motorway exits
positioned on ways lacking ref tag.</i><i><br>
</i><i><br>
Multipolygon.txt: errors in relations of type multipolygon or
boundary, such as intersecting ways, polygons with rol inner
that are not inside a polygon with role outer, multipolygons
which elements don't make a closed polygon, etc.</i><i><br>
</i><i><br>
HouseNumbers.txt: errors related to house numbers. This
information is necessary in order to be able to search by
addresses.</i><br>
</p>
</blockquote>
<p><br>
</p>
<p><br>
</p>
<p>There are lots of them.. :(</p>
<p>You can also use the QA tools <br>
</p>
<p><a class="moz-txt-link-freetext" href="https://www.keepright.at/report_map.php?zoom=14&lat=-33.lon=151">https://www.keepright.at/report_map.php?zoom=14&lat=-33.lon=151</a>.</p>
<p><a class="moz-txt-link-freetext" href="http://osmose.openstreetmap.fr/en/map/#zoom=7&lat=-33.684&lon=147.766&item=xxxx&level=1&tags=&fixable=&overlays=FFFFFFFFFFFFFFFFFFFFT">http://osmose.openstreetmap.fr/en/map/#zoom=7&lat=-33.684&lon=147.766&item=xxxx&level=1&tags=&fixable=&overlays=FFFFFFFFFFFFFFFFFFFFT</a></p>
<p><a class="moz-txt-link-freetext" href="https://tools.geofabrik.de/osmi/?view=areas&lon=145.45605&lat=-30.87017&zoom=6">https://tools.geofabrik.de/osmi/?view=areas&lon=145.45605&lat=-30.87017&zoom=6</a></p>
<p><br>
</p>
<p>Many days can be spent fixing and removing 'errors'.</p>
<p><br>
</p>
<p>I mainly concentrate on osminspector - area as that is where I
usually cause problems myself. <br>
</p>
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