[OHM] Representing the Change in Tag Values over Time

[Richard Welty]

On 4/3/17 4:20 PM, J. Druhan Cummings, Jr. wrote:
> To Whom It May Concern,
>
> I am writing this to expand on what Mr. Welty said and to hopefully
> articulate my concern effectively. Through my relatively limited
> experience mapping on OHM, I have noticed the need for the ability to
> represent the change over time of /every/characteristic of any piece
> of datum. For example, it is easy enough to draw separate ways and
> add the respective tags to each if over time a road has been moved,
> but a road that has run the same stretch for hundreds of years may
> have had its surface, name, direction, and any other tag changed. This
> cannot be solved by the use of the start_date and end_date tags, as
> these only apply to the item's existence as a whole. What is needed is
> a simple scheme to effectively give start- and end-dates to the
> individual tags themselves. I do not find the use of relations to be a
> suitable solution to this conundrum, as it seems, at least on the
> surface, to be laborious and byzantine. I thank you for your time and
> your thoughts.
the fundamental problem is that we are working with unmodified software
inherited from OSM. going our own way and developing our own versions of
things is pretty much of a non starter simply because we will not be able to
find the resources to maintain a fork or to develop something new.

richard

-- 
rwelty at averillpark.net
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