[HOT] Mali fyi

[john whelan]

I've been cleaning up in Mali.  I last looked at it about three years ago.

Apparently there are still some 130 NGOs operating there despite some 30 to
40 withdrawing recently.

Some 15,000 duplicate buildings have been cleaned up.  There are roughly
four left in the entire country but those are part of relationships so I've
left them to more specialist mappers.

I note more use of JOSM when mapping buildings and some HOT projects seem
to overlap.  One building was on the map before HOT came along but two
separate projects mapped it again both using JOSM.

I'd added building=yes tags to around 2,000 building outlines many were
mapped with JOSM.

I note that many mappers map four or five buildings in a session.  If you
can flip them into JOSM buildins_tool plugin you should be able to double
or treble that number per session and more to the point they will be
correctly tagged.

I've run JOSM validation tools over the entire country and cleaned up the
most obvious problems including crossing highways of unclassified or
above.  All highway=road for example have been cleaned up.

If you're a project manager of a project in Mali you might like to think if
you really need additional validation before archiving the project.  The
only thing I've really missed is buildings that have not been mapped and
since the imagery gets updated from time to time they may have appeared
since the project was mapped anyway.

I posted a separate message about validation requirements.  I think some
people's expectations on validators are too high but that is a personal
view.

I'd also like to see clearer instructions for mapping buildings.  It takes
quite a lot of time to visually inspect each duplicate and prevention is
cheaper than cleaning up afterwards.

Cheerio John
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