[OSM-newbies] divided but not seperated

[Joseph Scanlan]

On Tue, 25 Aug 2009, Andrew Errington wrote:

> Sorry for the rambling post.

That's OK.  I like rambling posts.  ;-)

My approach to divided ways is driven (mostly) by my own laziness. 
That is, I don't create parallel ways unless it could make a difference 
to the data consumer.

Consider city arterials.  Many of them here (Las Vegas, US) have painted 
center lines.  Lot's of lanes both ways but no advantage in dividing it. 
The same is true when I find the little concrete islands down the middle 
that have breaks for every intersection.

Some arterials have nice wide islands (perhaps with landscaping) and 
only allow some intersecting streets to cross.  At other intersections 
the island only allows for right turns.  Now I'm willing to create the 
parallel ways (marked one way with matching name and ref tags).  When we 
have an intersection (with a break in the island) that allows cross 
traffic and left turns, I connect the crossing way to both parallel ways 
rather than make a short section of single way.

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My hope is that data consumers (routers, renderers, etc.) will be happy 
with this.

-- 
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Joseph Scanlan
+1-702-455-3679                                  http://www.n7xsd.us/
jps at co.clark.nv.us (work)                   (not work) n7xsd at arrl.net
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So he went inside there to take on what he found.
But he never escaped them, for who can escape what he desires?
                                               --Tony Banks of Genesis
                                                    in "The Lady Lies"