On 09/10/2012 17:02, Andy Robinson wrote:
On a related point...
I came across some OSM additions in my patch (Sutton Coldfield) which
appear to come from the dft data. Specifically the estimated width
value which was hopelessly wrong for every element I checked. It's
easy to measure features with the measurement tool in JOSM so I think
est_width probably should be ignored unless its checked to be
consistently correct for a given area.
This is why I've largely ignored the DfT data. It just isn't accurate
enough to blindly copy into OSM ad hoc. I enter cycle lane data such as
this only when I have been to an area & actually seen it, which renders
most of the DfT info worthless.
I've even seen data for NCN 4 that's illegal where it suggests a right
hand turn but is explicitly denied by signs.
Dave F.
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