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Good thoughts and background information, thank you, Cheers . . . . . . .
. Spring Harrison<br><br>
<br>
At 09-05-2015 13:15 Saturday, john whelan wrote:<br>
<blockquote type=cite class=cite cite="">First for Nepal and practically
all the projects we need everyone available, I think everyone accepts
this. There are HOT projects that haven't had a tile completed in
months simply because that just aren't enough HOT mappers.<br><br>
What you are seeing here is discussion of how to make the best use of
people's time. For Nepal there are three big tasks, the first is map
what was there before the earthquake. If there were no buildings there
then there isn't much point in sending aid in. So there are two parts,
the first is map the roads, paths etc. Normally we would map the major
roads then open the project. In Nepal there are often no roads only
paths so you need some expertise to figure out where they are. Even
experienced mappers have difficulty picking them out correctly. For
example which direction does a stream run in? Just looking at a single
tile may not give you enough information.<br><br>
Buildings are simple to do and give a great deal of useful information.Â
From the aggregate size you can estimate the population so how many bags
of rice are needed. We should be able to teach you how to do this is 20
mins or less. Whether we can or not at the moment is debatable but
people are looking into the problem and I think you've seen some
discussion here in the list. In twenty minutes I can map roughly two
hundred buildings, someone who is new using the same tools and techniques
should manage twenty buildings but pointing the new user in the direction
of those tools is something we aren't very good at yet nor is there
consensus on what we should try to teach you.<br><br>
The post earthquake imagery, leave it to those people with some
experience with that sort of imagery especially as Kevin pushed the
limits on the satellite imagery by using one that was passing over
Bangladesh. <br><br>
Before Nepal the general thought was that someone would map everything on
a tile then mark it as done. To teach you how to correctly map
everything on a tile correctly realistically would take a few days
training. What we're seeing in Nepal is perhaps a dozen mappers working
an tile. If the new mappers can map the buildings then that allows the
more experienced mappers to sort out the rest and to validate.<br><br>
Unsquared buildings as someone else has already pointed out are not a
major problem its still a building on the map of roughly the right size
which is far better than no building. Besides a couple of clicks and
who ever is validating if they are using JOSM they can square the
buildings. Nepal is nice in that most buildings are square, this
doesn't work quite so well in West Africa where there are a lot of round
huts.<br><br>
As we gain experience we are finding that task manager etc. could
probably do with a few code changes, I seem to recall that HOT uses
professional programmers for task manager so that one will need some cash
finding from somewhere. One would be stop suggesting validate a tile
when you take a task at random to new mappers. We need to let the dust
settle before deciding what exactly should be done.<br><br>
New mappers that just map buildings are a delight. New mappers that
mark a tile done when they have finished their little bit and its time
for tea without carefully scanning the rest of the tile cause problems in
that it stops others from mapping the tile since they think its
finished. I'd say more than half the tiles mapped in HOT never get
validated. Task manager gives you a brownie point for completing a
tile, you don't currently get one for validating one. We are pushing
people to validate more in Nepal, and we're even seeing validation of
validated tiles which is good.<br><br>
In West Africa where I've done a lot of validation giving gentle feedback
and explaining why highways should be connected has I think resulted in
improving the quality of the maps. Even where someone has just done
same basic mapping I find that helps as I can then just scan the tile,
add a couple of features if need be than mark it done. Much faster than
having to map it all from scratch.<br><br>
So yes we need newbies, and yes we could do a better job at explaining
exactly what we would like them to do which is within their comfort range
and that comes back to the project managers. Some are much better at
giving clear instructions than others. Some instructions on the project
such as tag landuse=residential only when there are more than twenty
buildings goes against what is common practice in other projects and some
map all the buildings, well yes but we don't have enough mappers so in
practice map all the building projects are the ones that rarely get
completed, so accept landuse=residential and get something useful
quickly.<br><br>
So to sum up before you go home could you just knock off a few more
buildings in Nepal please.<br><br>
Thanks<br><br>
Cheerio John   <br><br>
On 9 May 2015 at 14:29, laura brittain
<<a href="mailto:l.n.brittain@gmail.com">l.n.brittain@gmail.com</a>
> wrote:<br>
<dl>
<dd>Ideas regarding using newbs,<br>
<dd>Please embed instructions (and a link to Google translate or another)
in Task manager.<br>
<dd>Please put important instructions in Bold Capital Letters in Task
manager.<br><br>
<dd>Info on unlocking a tile isn't visible when you are locked in a tile
and it's hard to realize you have to go back and do that in TM.<br><br>
<dd>Please don't let new JOSM users validate tiles unless they've been
vetted.<br>
<dd>In my case it would be a disaster.<br><br>
<dd>HOT has been linked to all over in media. Of course you're inundated
with newbs. The message out there and in tutorials is that anyone can
help with even 20 minutes and that learning how takes an hour or two. Um,
no.<br><br>
<dd>To avoid discouraging us, could discussions of our many mistakes be
done off the HOT list that is one of the sources we go to to
learn?<br><br>
<dd>Consider a message like this that pops up on unlocking a tile:<br>
<dd>"Thank you for mapping —please come back and see what you can do
to help in the weeks, months, and years ahead."<br><br>
<dd>Finally, I'm sure a lot of us would love to have someone comment on
our work and point out errors.<br>
<dd>Just remember the feedback sandwich: one positive feedback on either
end of the criticism.<br><br>
<dd>And if absolute newbs aren't helpful or needed please let us know
so we can go home.<br>
<dd>Hope this helps! Thank you.<br>
<br><br>
<dd>_______________________________________________<br>
<dd>HOT mailing list<br>
<dd><a href="mailto:HOT@openstreetmap.org">HOT@openstreetmap.org</a><br>
<dd>
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</dl><br>
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