[Talk-us] Proposed automated motorway_link mass edit
Theodore Book
tbook at libero.it
Sat Jul 18 16:57:04 BST 2009
I have looked through the changes in my part of the world, and it makes
things much better. I would encourage you to go ahead and run it with
the changes that you have made.
Frederik Ramm wrote:
> Hi,
>
> I'm new on this list but I assume that the problem I'm talking about
> has been widely discussed. Someone from the US alerted me to the fact
> that TIGER only has one type of road link which was imported as
> motorway_link, and therefore you have little bits of motorway_link
> sprinkled liberally across the US.
>
> I propose to run a script that downgrades every motorway_link to the
> highest road type to which it is connected. A motorway_link that
> connects to a motorway remains unchanged; a motorway_link that connects
> a primary and a secondary road will become primary_link, one that
> connects two tracks (yes, these do exist) will become a track also, and
> everything in between.
>
> (This will sometimes cause whole sets of interconnected motorway_links
> to be downgraded, like this:
> http://www.openstreetmap.org/?lat=25.7839&lon=-80.28898&zoom=17&layers=0B00FTFT)
>
> Preliminary analysis shows that there would be roughly 28k changes
> across the whole US. I have prepared a full list of all proposed
> changes, arranged by state and county, here:
>
> http://www.remote.org/frederik/tmp/us-motorway-link-downgrade/
>
> I invite you to make some random checks (way IDs are linked to the
> openstreetmap.org browse page where you get to see the map context) to
> see whether my script does the right thing.
>
> I would then run the script after the weekend if nobody has any
> objections. (Anything that is changed by hand between now and then will
> not be touched by the script.)
>
> Let me know what you think.
>
> Bye
> Frederik
>
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