[Talk-GB] NPE data

[Robert Scott]

On Sunday 06 October 2013, Paul Churchley wrote:
> I have come across some data tagged as source=npe. I know what the NPE maps
> are but my question is a bit of a newbies one... why is NPE data mapped on
> OSM if it is so old?

For a while it was the best we had. But that was some time ago. (2008?)

> I have just mapped an area for a customer of mine and there is a stream
> mapped running right through the centre of his property. It is tagged
> source=npe. The stream is no longer there and hasn't been for the 20 or so
> years he has owned the property.

It should be deleted then.


> What is the situation regarding npe data? Can it be removed? Obviously I
> would just remove it!!! But is there is a process to get it removed?

You select it in the editor and hit "delete".

Or more appropriately, rather than deleting the whole stream you may just need to remove the offending section. You can do this by following it to the point(s) which join up with modern reality, splitting the way there and then deleting the appropriate section.

> If it
> is to be kept, then how can we get the OSM tiles rendered without it
> showing this old stream? I can see that some specialist tiles might want to
> show old data like this but I wouldn't have thought it appropriate that
> normal OSM tiles would need to show this old data would it?

It may take a few hours for the tiles to re-render without the stream and even then you may have the old ones in your browser cache.


robert.