[OSM-talk] Preserving History ...

[Roland Olbricht]

Hi Lester,

 > http://www.openstreetmap.org/#map=16/52.3790/-1.4692 is a perfect
> example, where a small roundabout has evolved into a much larger one,
> but the new through route is still being excavated. The problem with
> this is while it is a good approximation of how work is progressing,
> many of the original roads have been deleted and replaced and all the
> history relating to them lost.

Please have a look at
http://overpass-turbo.eu/s/bg7

You can view that data as well in JOSM: Click "Export > raw data", save 
the created file and open it via "File > Open" in JOSM.

The same works for any other date. The history starts from the license 
change on 2012-09-12 and proceeds till today.

Best regards,

Roland