Begin forwarded message: > From: Martijn van Exel <[email protected]> > Date: November 10, 2010 5:55:47 PM GMT+01:00 > To: Ed Avis <[email protected]> > Subject: Re: [OSM-talk] Historical Data in OSM database > > On Nov 10, 2010, at 11:37 AM, Ed Avis wrote: > >> Lester Caine <lester <at> lsces.co.uk> writes: >> >>> As I said ... adding the dates on which the new roads appeared around the >>> Olypmic village, or a new motorway spur or residential road was opened will >>> be >>> history in 100 years time but costs nothing to add today? >> >> When something exists today, it would be nice to add the date it was >> constructed. >> start_date would not be my ideal tag name, but it works. >> > > I believe start_date is already used for temporary road closures and > temporary access, no? It would be too confusing to apply the same tag to > features that are more or less permanent. date_constructed or date_built > would be a better choice from a semantics perspective. > >> However I don't think it makes as much sense to add an object that doesn't >> exist >> today. >> > Do you mean it doesn't make sense to add features that do not exist today in > general? A matter of perspective as far as I am concerned. If people want to > map the past, they can. The mainstream editors should not show all this > historical data, but a plugin or separate web application may very well be > developed that handles history editing. Whether the main database is the best > place to store it has already been raised as an issue - I think it is, it is > accumulating a history as it is, and those few niche historical mappers will > not make a huge dent in the resources available. > > Best > Martijn > > > Martijn van Exel +++ [email protected] > Laziness – Impatience – Hubris > > http://schaaltreinen.nl | http://martijnvanexel.nl | > http://oegeo.wordpress.com/ > twitter: mvexel > skype: mvexel > flickr: rhodes >
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