<div dir="ltr"><div><div><div><div><div>Hi Mike,<br><br></div>I don't find it redundant since the length=* tag can give the real length of a feature.<br></div>The way in OSM is only a (sometimes not precise) drawing of an existing feature and can be different from the reality.<br><br></div>The wiki can be completed with such a nuance.<br></div><div><br></div>I personally recommend to use the length key while mapping street cabinets as nodes.<br><a href="http://wiki.openstreetmap.org/wiki/Tag:man_made%3Dstreet_cabinet">http://wiki.openstreetmap.org/wiki/Tag:man_made%3Dstreet_cabinet</a><br><br><br></div>All the best<br></div><div class="gmail_extra"><br clear="all"><div><div class="gmail_signature"><div dir="ltr"><b>François Lacombe</b><br><br>fl dot infosreseaux At gmail dot com<br><a href="http://www.infos-reseaux.com" target="_blank">www.infos-reseaux.com</a><br><a href="http://www.twitter.com/InfosReseaux" target="_blank">@InfosReseaux</a></div></div></div>
<br><div class="gmail_quote">2015-01-27 16:04 GMT+01:00 Mike Thompson <span dir="ltr"><<a href="mailto:miketho16@gmail.com" target="_blank">miketho16@gmail.com</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">I have noticed a "length" tag used on some linear ways [1]. It seems<br>
that this is redundant, as the length could be calculated from the<br>
geometry itself. It could also be the source of future errors should<br>
someone split the way, for example to add more detailed tagging, such<br>
as varying smoothness.<br>
<br>
The length key does have a wiki page [2], but the page doesn't have<br>
much content. Perhaps it is only intended for nodes?<br>
<br>
What do you think? Should the length tag be used with ways and<br>
relations where the length can be calculated from the geometry itself?<br>
Am I missing something?<br>
<br>
MIke<br>
<br>
[1] <a href="https://www.openstreetmap.org/way/324078614" target="_blank">https://www.openstreetmap.org/way/324078614</a><br>
[2] <a href="http://wiki.openstreetmap.org/wiki/Key:length" target="_blank">http://wiki.openstreetmap.org/wiki/Key:length</a><br>
<br>
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</blockquote></div><br></div>