[OSM-talk] tagging roads

[Roy Wallace]

On Tue, Aug 4, 2009 at 7:06 AM, Martin
Koppenhoefer<dieterdreist at gmail.com> wrote:
>> What I'm proposing is to add additional quality assurance tags. Absence of
>> such tags would mean that there is no way to know how accurate data is. But
>> presence of such tags would give reasonable assurance on data quality. I see
>> need for two such tags: measurement method and date of data acquisition.
>> So, when road width is just roughly estimated mapper would add only tag width.
>> When road width is actually measured, tagging would look like this:
>>   width=6.5
>>   width:method=tape
>>   width:date=2009-07-23
>> When width is measured on aerial photography method could be aerial and date
>> would be date when photography was taken, ...
>
> actually there is already some people using tags like source and note
> to add this kind of information. But they are few I guess.

+1 - use source:width, not width:method. It's established and
documented already. As for date, I would think the date of the
changeset, which is recorded automatically, should be sufficient.