[Tagging] Bridges and layers

[Richard Mann]

On Wed, Jul 28, 2010 at 10:27 AM, James Livingston
<lists at sunsetutopia.com> wrote:
> Someone mentioned http://wiki.openstreetmap.org/wiki/Relations/Proposed/Bridges_and_Tunnels up-thread, is there anything it doesn't cover? I've been using it for over a year, although I haven't mapped any really crazy scenarios.

You'd probably be better off using parapet:right=no, and hoping the
renderers figure out how to draw offset lines (Maperitive does offset
lines already, and there's a draft routine for doing them in Mapnik).

That's far more likely than they'll pre-process a relation consisting
of near-parallel lines.

Richard