<div dir="ltr"><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small">OSM has its roots in the UK and Germany, in the UK highways are
classified A, B, I think even C and other very minor roads were labelled
unclassified by Ordnance Survey historically so that is where the term
comes from. The UK Ordnance Survey was historically important in
creating everyday maps.<br><br>By using a standardised set of tags for
highways it makes the rendering systems life easier. OSMand for example
is used everywhere in the world and if it had to know about a different
set of tags for each country the software would be much more
complicated. If you’re mapping in OSM of course there is nothing to
stop you tagging highways in any manner you like. The only problem is
that the features will not be rendered by the normal systems.<br><br>If you’re mapping in a HOT project then you’re expected to follow the HOT guidelines for tagging. ie building=yes etc.<br><br>The
problem here is the instructions for a group of projects only contain a
subset of the highway types used for mapping in Africa as defined by
the African Highway Wiki and the examples shown are all urban areas so
the instructions although correct are incomplete as the project covers
both urban and rural areas.<br><br>Cheerio John </div><div class="gmail_extra"><br><div class="gmail_quote"><br></div><br></div></div>