[Talk-GB] Historical Mapping in OSM

80n 80n80n at gmail.com
Mon Sep 27 12:20:07 BST 2010

In my opinion historical data is definitely an important part of OSM.

Yes it will get cluttered, but better tools will deal with that when it
becomes a problem.

Short term chronological data is beneficial anyway.  For future events, new
roads etc, they can be surveyed and added ahead of their official opening.
And a record of recently demolished buildings etc is important otherwise
there's a risk that they get re-added by someone tracing without up-to-date
local knowledge.

And if we have to accommodate recent events, past and future, then it should
be equally possible to accommodate distant past events.


On Mon, Sep 27, 2010 at 12:02 PM, Dave F. <davefox at madasafish.com> wrote:

>  On 26/09/2010 23:47, Richard Palmer wrote:
>> Dear all,
>>        I'm involved in a project looking at the history of a street in
>> London
>>        (The Strand). One of things we'd like to do is produce a 'animated'
>> map
>>        showing the changes along it from the C18th onwards. I've had a go
>> at
>>        adding some attributes to OSM for building dates and then generated
>>        different tiles for layers each century, (quick demo up at:
> Is this what we should be using OSM for? For me OSM is for *current* data
> (I've been deleting any demolished buildings).
> This project sounds great, but should be set up as a separate entity. The
> database would become far to cluttered otherwise.
> I've an abandoned railway in my area where sections of it are now invisible
> having been completely leveled & used as agricultural land. Someone's tagged
> these as railway=abandoned. I don't think they should.
> Dave F.
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