If we decide to go and remap a village during a mapping party, we can make
sure to gather all relevant data, including street names, maxspeeds, etc.
There shouldn't be any doubt about it, that we did this before applying
those tags (again or anew).
In your own neighbourhood, you can keep the names, on condition you are
sure about them and the way they are spelled. A bit further away you have
to drop the street names and other tags which cannot be gathered from clean
sources. I've been doing this many times, reluctantly on the one hand. But
I'm sure those names and other bits of data will be surveyed and entered
once again, someday.
Jo
2012/1/20 Sander Deryckere sander...@gmail.com
2012/1/20 Marc Gemis marc.ge...@gmail.com
Jo,
do you mean that I need to prove that I actually was in a certain
street before I can remove and remap it ? Do you still have all data
(on paper, gps track, photo, etc.) of everything that you ever mapped
?
What about landuse ? This is always mapped from satellite images ( I
assumue). So why should one wait until it disappeared before mapping
it again ?
An example is the Lippelobos (close to Lippelo - what a surprise ;-)
) I know it's called Lippelobos, I've been there before, so I can
remove the current area, and use Bing satellite images to remap it.
But you say I have to wait until it's actually gone ?
What about streets that I've passed when I surveyed for the
knooppunten ? I did not write down the name of the streets because
they were there. If I had known they would we lost, I would have noted
them down.
It's also easier when I delete/re-add the streets now than loose them
and my own mapping work above them.
regards
m
This was my mail, not Jo's.
You never have to prove where you got your data from (innocent until the
contrary is proven). But I just don't want to give anyone a reason to sue
OSM.
When you remove a way, and map it again from the satellite images, this is
completely legal. But if you remember the name before you remove it, and
apply that name to the new way, then you create some tricky things. One
could argue that the name is from the original map, so it is a derived work
from the original map, and you can't redistribute it under ODBL. This is
the case for all tags on the way that can't be seen from satellite images
(maxspeed, oneway ...).
I'm not a lawyer and I've never followed any law courses, but I do
remember that OSM asks to give nobody a reason to sue OSM, as even a court
that is won by OSM could seriously hurt OSM.
So all mappers have to decide for themselves, I can only say what I think
about it.
Cheers,
Sander
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