[Talk-us] braided streets

SteveC steve at asklater.com
Tue Apr 8 07:05:44 BST 2008


On 7 Apr 2008, at 20:37, Dave Hansen wrote:
> On Mon, 2008-04-07 at 09:19 +0300, SteveC wrote:
>> so I see that braided streets are 'officially' a problem
>>
>> http://wiki.openstreetmap.org/index.php/TIGER_fixup
>>
>> anyone have a good way of fixing them? I'm happy to have a go in SF.
>
> How do these things actually look?

http://www.openstreetmap.org/?lat=37.786887&lon=-122.420763&zoom=18&layers=B0FT

> If we have a good way of detecting them, and a target way we want them
> to look, I'd be happy to get them fixed in the JOSM validator.

my target would be the geometry of oak and fell

http://www.openstreetmap.org/?lat=37.77147&lon=-122.43508&zoom=16&layers=B0FT

eg parallel, linked across

> I already have my own private copy that "just works" in stitching the
> streets together at the edge of counties, and unsharing some nodes  
> that
> shouldn't be shared.  I detect the node unsharing by looking for  
> places
> where "motorway" touches non-motorways.
>
> I also managed to detect all the places where the TIGER  
> "motorway_link"
> ways touch non-motorways and auto-fix them.
>
> My copy of JOSM:
>
> http://dev.openstreetmap.org/~daveh/josm/
>
> I'm also working on splitting up those large patches into more
> manageable chunks.
>
>

Best

Steve





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