[Talk-GB] Ficticious embankments? Vandalism.

[Warin]

On 21/3/20 11:02 pm, ael wrote:
> On Sat, Mar 21, 2020 at 10:45:53AM +1100, Warin wrote:
>> On 18/3/20 1:42 am, ael wrote:
>>> On Tue, Mar 17, 2020 at 11:25:24AM +0000, Devonshire wrote:
>>>> On Tue, Mar 17, 2020, at 2:08 AM, Warin wrote:
>>>>> On 17/3/20 8:02 am, ael wrote:
>>>> The inability to mark an object's location as "authorititive" has always seemed like a massive shortcoming of the project to me. Stopping people re-aligning things based on a bad phone GPS or badly aligned aerial imagery is impossible and even realising that things have been incorrectly moved is random at best.
>>> I agree entirely and have often wished for exactly that. I sometimes use
>>> source=gps_surveys  (plural) to try to convey that this is not just one
>>> random gps trace.
>> "source=average of multiple gps surveys, high accuracy"
>>
>> Be really descriptive... the 's' on the end of gps surveys is really easy to miss.
> Well, yes, and I do quite often expand the source tag to try to
> convey more. But in your example "high" accuracy is a problem.
> If I was using differential gps with cm accuracy, I would call
> that "high" accuracy. In the present case, the accuracy is
> not really known, but probably approaching a meter.
> But I guess that sort of thing could be included in a source tag,
> although free form text might be better in a note tag.

Is not the source tag free form? Indeed any OSM tag is 'free form' - i.e.  "Any tags you like".

I don't think any one uses the source tag other than mappers looking at where the data came from. As such it can be anything you think suitable.

The 'high accuracy' is a relative term simply there to help those that don't understand the previous 'average of multiple gps surveys'

>
> But my impression is that many armchair mappers just don't look.
>
In this case any tags will be ignored. Pointless coming up with another tag.

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