Hi Blake,
thanks a lot for reviewing the task and explaining what you did. I think
the workflow for validating tasks is still a mystery to users.
Your comments help me to increase the quality of my mapping efforts. And
as well bring back some motivation.
It puzzles me that a relatively new user
(<http://www.openstreetmap.org/user/GoUtes!>) would be able to map in a
project clearly outlined as "TASK NOT FOR BEGINNERS"
(<http://tasks.hotosm.org/project/1006>) and even starts (in)validating
tasks. Is there some statistical method to check on this pattern and
double check contributions of such users (plus addressing those mappers
so they get constructive feedback)?
Cheers,
Carl
Blake Girardot wrote on 16.05.15 15:40:
Hi,
I agree with John, a lot of the mapping of roads/paths/waterways in
Nepal is very very difficult both due to the actual terrain and the
imagery.
I edited this task square and marked it complete.
When I got to it, it was actually pretty well mapped.
Almost everyone, myself included, maps short unconnected path and road
segments when they first start. The directions often say something like
"map every path and follow it as far as you can see it" which leads us
all to map every path we see and only for where we see it obviously.
But that can be a little counter productive and not a good use of time.
Always try and "see" the connections between short segments. You can't
map what is not there, but do look very hard to see if, "ya probably
these connect over this 2m segment in the trees."
And always try very hard to find a connection to the "main
transportation network" be that roads or paths.
If you are finding a lot of short segments that you just can't connect
to a part of the "network" no matter how hard you look, that is a signal
you might be mapping something that you should just leave unmapped and
move on to more significant objects to map.
In mapping like this there are a lot of judgement calls about what to
map and what to not map.
I removed about 10 small segments that I could not find a way to connect
to the network and in zooming out and looking, probably were not going
to help make the map more useful for navigation and logistics anyway.
Don't let yourself get lost in mapping every tiny part of a path you can
see, and don't invalidate a task square just because there are some tiny
unmapped paths somewhere.
In validation, the best practice would have been to spend 15 mins fixing
up the task square, take out the shorties, connecting what should have
been connected and then mark it validated. But like mapping, we are new
to validating at some point as well.
Like I said, it was pretty good when I got there so everyone who worked
on this task square should be pretty happy, you did a good job, short
segments we all map and it is hard not to :)
Thank you for following up and asking Carl.
Cheers,
Blake
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