<br><div><span class="gmail_quote">On 8/14/07, <b class="gmail_sendername">Jon Bright</b> <<a href="mailto:email@example.com">firstname.lastname@example.org</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;">
- Say you're marking a forest at the side of a road - the forest<br>doesn't begin exactly at the side of the line running through the middle<br>of the road, it begins some metres away.<br> - Sharing segments makes things more difficult if either of the
<br>sharers changes its position</blockquote><div><br>Both of these are clearly problems for your forest example, but what about things like University boundaries? These are often DEFINED by the roads that border the campus, and so it makes perfect sense for both ways to use the same segments. If the road is moved slightly, then the University area SHOULD be modified correspondingly.
<br><br>Another small matter for consideration is that the rendering is typically prettier (in my opinion, anyway) when areas like leisure=park and amenity=university DO re-use the segments of roads that define their borders. This makes it impossible for small "gaps" to appear at various zoom levels.
<br><br>- Lachlan<br> </div><br></div><br>