[OSM-talk] Should roads be connected to all types of crossing ways?

[Tom Hughes]

On 14/02/10 16:26, Nathan Edgars II wrote:
> I was told at http://trac.openstreetmap.org/ticket/2708 to take this
> here. Basically, the TIGER import has put a lot of duplicate nodes
> where highways cross railways, power and pipe lines, and
> administrative boundaries. The former should definitely be connected,
> but it seems that power lines, (maybe) pipelines, and boundaries
> should not be joined to roads. Does this sound reasonable?

Basically, yes.

Things should be connected (ie share a node) if they are physically 
connected in the real world.

So a road which crosses a railway at grade should share a node (with the 
node marked as a level crossing) but a road which crosses a railway on a 
bridge or vice versa should not share a node.

Boundaries, being virtual things rather than real physical entities are 
normally connected to physical things which cross them.

Tom

-- 
Tom Hughes (tom at compton.nu)
http://www.compton.nu/