[Tagging] How to tag small canals?

Christoph Hormann osm at imagico.de
Fri Aug 17 20:59:42 UTC 2018

On Friday 17 August 2018, SelfishSeahorse wrote:
> [...] You can't measure its width on site (because you don't have the
> equipment or because the soil at its sides is marshy), but you know
> (estimate) that it's wider than 1 metre, but less wide than 3 metres.

If you know it is wider than 1m and less wide than 3m you have a pretty 
precise measurement.

> However if you enter width="2 m", the width value
> pretends to be exact.

Why do you assume that?

In OSM individual data points - be that in tags or in coordinates - come 
with no implication of accuracy of the data.

Christoph Hormann

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