[OSM-talk] Not attaching polygons to roads

Clifford Snow clifford at snowandsnow.us
Wed Feb 26 01:29:51 UTC 2014

On Tue, Feb 25, 2014 at 5:02 PM, Mike Thompson <miketho16 at gmail.com> wrote:

> The edges of some polygons are truly coincident with road centerlines. For
> example, many municipal boundaries.

That may be true, but it doesn't mean we need to connect roads with
polygons. As was stated in a post from a time past, roads and
landuse/borders polygons are only representations of the object. One object
can sit on top of another without connecting. The render map will appear
the same. The only problem I can see is trying to query what is inside of a
polygon. A road with its geometry just outside of the polygon would show up
even though it appears to be directly under the polygon. But that seems
pretty obscure.

When editing, it is time consuming to make changes to one when the two are
connected. Leaving the two connect can lead to problems if the editor
doesn't see that they inadvertently moved the other.

OpenStreetMap: Maps with a human touch
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