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<p>I would switch it: Map buildings (and maybe residential areas)
first and then roads. Buildings or residential areas help mapping
roads (if a road is a track or unclassified) while roads are no
help when mapping buildings. <br>
</p>
<div class="moz-cite-prefix">Am 26.02.2017 um 03:36 schrieb Vao
Matua:<br>
</div>
<blockquote
cite="mid:CABvwQaxTaYGq+JEP0ZY+pNrMcWtxbgoVv_Oepew+rV=T8HX7Tg@mail.gmail.com"
type="cite">
<div dir="ltr">John,
<div><br>
</div>
<div>I think there is merit to what you are saying.</div>
<div><br>
</div>
<div>The one caution I would suggest is that "If something is
worth mapping it is worth mapping correctly". Here in
Ethiopia I have spent a lot of time adding nodes to roads that
were digitized at a coarse scale. Mapping quickly doesn't
have to be done crudely.</div>
<div>There is no troupe of magic mapping elves that clean up the
rough mapping. </div>
<div><br>
</div>
<div>The next set of HOT projects I will set up will be
roads/highways only and then buildings only.</div>
<div><br>
</div>
<div>Keep mapping,</div>
<div><br>
</div>
<div>Emmor</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Sun, Feb 26, 2017 at 1:16 AM, john
whelan <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:jwhelan0112@gmail.com" target="_blank">jwhelan0112@gmail.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="auto">Just an ideal thought. It came about as I'm
loading in bits of Nigeria by the enamel bucket at the
moment then looking for untagged ways and crossing
highways.
<div dir="auto"><br>
</div>
<div dir="auto">What stands out are blocks where every
track and settlement is mapped and blank bits of the
map. I've been attempting to join bits of highway
together to reduce the islands.</div>
<div dir="auto"><br>
</div>
<div dir="auto">Projects that ask for buildings are
different but for projects where we are looking to map
settlements and connecting highways if we omitted the
paths and tracks leading to fields and rivers and mapped
say two or three highways max to a cluster of three huts
we might be able to get rid of some of the large gaps in
the map and unless someone can think of a reason why
tracks and paths leading to fields are essential I think
many NGOs could manage without. In return we could make
more settlements and highways available in the same time
frame.</div>
<div dir="auto"><br>
</div>
<div dir="auto">Part of the problem is each project is
looked at separately. Each project manager only thinks
in terms of their own project rather than in terms of
how much resources are available overall. I am aware
that some organisations feel they are independent having
their own mapathons but to get the quality up you need
validation and if you don't believe me just have a look
at the map after a mapathon. Nigeria is full of
settlements wrongly tagged, building=residential or yes
are amongst the most common incorrect tagging. A number
of small villages have been interconnected with
highway=primary etc. Crossing ways by the hundred.</div>
<div dir="auto"><br>
</div>
<div dir="auto">I don't know how you would write the
instructions for a such a project but it might help the
projects get completed more quickly. I heard an off the
cuff remark about a project recently, "It'll take a year
at that level of detail.". Off the cuff comments are
more gut feel than accurate but there was an element of
truth in the remark and I had the feeling the data was
desired within a month or two. I would suggest if you
want the mapping done quickly reduce the scope a little.</div>
<div dir="auto"><br>
</div>
<div dir="auto">Thoughts?</div>
<div dir="auto"><br>
</div>
<div dir="auto">Thanks John</div>
</div>
<br>
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</blockquote>
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