[talk-au] Tram stops and routes for Melbourne

[John Smith]

On 30 January 2010 11:56, David Murn <davey at incanberra.com.au> wrote:
> Im worried about a technique like that.  You plan to remove all existing
> stops (whether survey'd or nearmapped or whatever) to be replaced by a
> mass data set.  Just ask around how well that worked for the BP import
> and how many nodes ended up doubled up, or in the wrong location?

The duplicates from the BP import was intended not an accident, I
intentionally didn't remove any existing data so that the data could
be merged with existing information.

> If youve been on-the-ground and surveyed the data for the tram stops and
> simply wished to bulk upload verified data, that would be one thing, but
> if you plan on removing possibly surveyed data, just for the sake of
> importing a government supplied GIS list, I think the consequences
> should be understood that you could be removing accurate data to replace
> it with less-accurate data, unless you plan on reviewing/surveying every
> node yourself?

I agree, data should never be removed for the purposes of importing
new data, there possibly a small amount of harm with duplicate data if
people rely on it to be accurate, but in that case hopefully things
will get worked out and merge the data.