[Talk-ca] data replacement north east mississauga

[Steve Singer]

I've started trying to replace some of the data in Mississauga from people 
who haven't accepted the contributor terms using a mixture of bing, canvec 
and memory.

http://www.openstreetmap.org/browse/changeset/10094967
http://www.openstreetmap.org/browse/changeset/10095179

A few things I've noticed

* Often you have to delete an item from a relation and you can't add the 
replacement back into a relation because membership in a particular relation 
isn't obvious from bing/canvec.  Transit relations are an example of this.

* This re-mapping is a time consuming process, it takes longer than mapping 
the area would have taken from scratch.

* I see at least two approaches that you can take.  a) Pick a road and stick 
with that road deleting all the data that the JOSM license check validator 
picks up for the length of the road.  Then retrace it from bing/canvec and 
connect it at junctions to other roads, some of which might also be based on 
non-ct term data.  B) Pick an area delete all  of the non-ct term data in 
that area then start filling in blanks based on bing/canvec.   I have not 
yet decided which method works better.