[Talk-GB] Ward Boundaries

[Chris Hill]

James Rutter wrote:
> ...been tidying up the Surrey Heath district boundary now that we can 
> do what we want with Boundaryline. Anyone got any advice for ward 
> boundaries...can't find much at all on the wiki? What's the 
> admin_level for ward or has it not been defined yet? What's the deal 
> with the left and right tags I'm seeing...does this mean linework is 
> 'handed' and if so how do we know which way round the lines 
> are....does a tag like left:ward=Chobham do anything...will it render??
>
I've been loading the BoundaryLine civil parishes in East Yorkshire. It 
is a slow, manual process to ensure that not only adjoining boundaries 
(including county and district) share their ways, but also streams etc 
that fall along the boundary also share the way. The existing snippets 
of NPE boundaries needed to be cleaned up too. I have marked the way 
with boundary=administrative and source=OS_Opendata_BoundaryLine and put 
everything else into the relations, ie, type=boundary, admin_level=10, 
name=*.  I'm not sure what the admin_level for wards should be.

The prj file that is part of the shp file has a piece missing so a 
standard reprojection using GDAL routines (like ogr2ogr) produces a 
result that is wrong. It almost seems like the OS were trying to make 
life hard for the prospective users of the data they so freely gave up.

The BoundaryLine electoral boundaries are out-of-date. The new 
boundaries will be published just after the current election - another 
example of the helpful OS.

Cheers, Chris