[OSM-talk] tagging roads

[Roy Wallace]

On Tue, Aug 4, 2009 at 3:00 AM, Blaž Lorger<blaz.lorger at triera.net> wrote:
> On Monday 03 August 2009 12:18:14 Emilie Laffray wrote:
>> Yes, 1 meter is 1 meter. That's why using an approximation is actually
>> worse than using a relative factor. Using a precise number is going to
>> introduce errors that can be quite bad in the end. I strongly oppose any
>> tags that is using a measurement that WILL NOT be accurate. Height is fine
>> because it is defined. Relative parameters are more flexible.

This makes no sense. It's not good to be "flexible" in this situation.
Please read http://wiki.openstreetmap.org/wiki/Verifiability -
particularly the example on height=*

Note that verifiability is not the same as precision.

Use source:width=approx, or something like that to indicate how
precise your measurement is.