<br><br><div><span class="gmail_quote">On 05/03/07, <b class="gmail_sendername">Francisco R. Santos</b> <<a href="mailto:firstname.lastname@example.org">email@example.com</a>> wrote:</span><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div><span class="q"><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">As far as OSM tagging is concerned the only difference is that<br>highway=unclassified tends to become highway=residential for
<br>unclassified "streets". </blockquote></span><div><br>So, the only difference between  and  is the tag "lanes=" ? Is
this small information sufficient for map rendering and/or navigation
systems?</div></div></blockquote><div><br><br>Probably not with the current renderers.<br>In the UK this is very clear: that large a road would nearly always be classified as a primary or trunk road.<br></div><br></div>I'd be tempted to specify this as a trunk road. It's clearly a major road (even if empty at the time the photo was taken), even if the general administrative classes don't apply in towns in spain. I think that's the basic idea of highway classification... trunk implies major road. Obviously routing software needs more information than that... but I have the feeling that when routing on OSM becomes possible at all there will need to be a lot of tweaking.