I think the best way to tag a junction is to combine all the elements into a 'junction' relation and then this relation can be given an identifying reference and name. Note that the current proposal does cater sensibly with a junction that has two different references for different roads that join at the junction (see discussion page). A relation makes it possible for rendering engines to just display a single point for the junction when zoomed out.
http://wiki.openstreetmap.org/index.php/Relations/Proposed/Junctions Fyi, the dual-carriageway relation can be used to relate opposite carriageways of the same road. This relation may be useful for renderers that need t draw a single line when zoomed out. http://wiki.openstreetmap.org/index.php/Relations/Proposed/Dual_carriageways General information about relations is available here: http://wiki.openstreetmap.org/index.php/Relations Regards, Peter _____ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Ian Dees Sent: 18 May 2008 15:38 Cc: [email protected] Subject: Re: [Talk-us] Naming freeway exits and onramps? I've been tagging the point where the motorway branches off to motorway_link with the exit number, not the exit name. On Sun, May 18, 2008 at 4:51 AM, Alex S. <[EMAIL PROTECTED]> wrote: Alan Millar wrote: > Up to this point I have named the onramps with the same name, but I'm > wondering if I should use something else. They are named the same (except 'entrance' instead of 'exit'), though most routing systems I've come across don't use names for on-ramps - they just call it 'on-ramp' or 'freeway entrance', so IMHO on-ramp names don't matter. _______________________________________________ Talk-us mailing list [email protected] http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk-us
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