I wrote (guessed) part of what is on the wiki because there was just
this list of PDF documents and no furthern info. I'm looking for
confirmations/corrections from people who are actually involved in
producing these maps. Discussion was to complete OSM data from the USGS
maps but the way it looks now it doesn't make a lot of senset to me. And
no, I didn't find any name I could have completed when I had a closer
look at three samples areas.
Should we simply remove the whole section from the wiki?
-- Karl
Am 25.01.2010 21:31, schrieb Brad Neuhauser:
Is the whole thing on the wiki just wrong? I haven't looked
extensively, but the street names appear to match up. This would make
sense as the map says "Street data courtesy openstreetmap.org
<http://openstreetmap.org>" If there were any other data, it would
probably be from MINUSTAH, but that's already mentioned on the OSM
Street Names page. Has anyone seen a specific example of where the
USGS maps have more street data than OSM?
Brad
On Mon, Jan 25, 2010 at 12:26 PM, Adrian Brain
<adrianpbr...@yahoo.co.uk <mailto:adrianpbr...@yahoo.co.uk>> wrote:
Hi Karl,
I had trouble understanding what these were too. The pdf's are
from Delta State University (here
<http://edcftp.cr.usgs.gov/pub/data/disaster/201001_Earthquake_Haiti/data/map_products/MISSISSIPPI_DELTA_STATE_MAPS/Haiti_25Kand6Kcombo_lettersize_GeopdfimageAtlas_vDSU20100119/>)
and represent the difference between the road names on the USGS
maps and the road names on osm.
Names present on the USGS maps but NOT in osm are highlighted in
black.
That is very useful, but there are roughly ninety docs with twenty
(image) pages in each giving 1800 separate comparisons to be made.
Also, updates will have been made to osm, from other sources,
since the extract. So if a name is in black in the pdf but now
present in osm that still does not indicate whether that area has
been done or not.
(And that doesn't include the work of actually putting names into
osm when they are found)
As each pdf is done it needs to be commented as such.
I'm happy to start on the job but want to wait for some time in
case anyone has already done some of the work. We can't afford to
do such large amounts of work twice if we can avoid it. It would
make sense to work outwards from PaP but it is the towns where the
comparison is most laborious/time-consuming.
Regards,
Adrian.
--- On *Mon, 25/1/10, Karl Guggisberg /<karl.guggisb...@guggis.ch
<mailto:karl.guggisb...@guggis.ch>>/* wrote:
From: Karl Guggisberg <karl.guggisb...@guggis.ch
<mailto:karl.guggisb...@guggis.ch>>
Subject: Re: [OSM-talk] USGS map areas with street names
To: talk@openstreetmap.org <mailto:talk@openstreetmap.org>
Date: Monday, 25 January, 2010, 17:34
Hi Adrian
I also had a look at these maps and I still don't understand
completely how they relate to OSM. The map already displays
the OSMs road network, but where do the street names in the
USGS map come from? They aren't taken from OSM, are they? Are
there indeed two road networks in the USGS map, one in maroon
(from OSM) and one from an unknown source (in black)?
For my taste, navigation in the PDF atlas is too complicated
(for mappers, people in the field may find it useful) and
comparing the street names manually with names displayed on a
slippymap in another instance is way too complicated too. Are
the USGS maps available as tiles served by a WMS server?
Regards
Karl
Am 25.01.2010 18:13, schrieb Adrian Brain:
Wiki page
http://wiki.openstreetmap.org/wiki/WikiProject_Haiti/Street_names
contains a section called "USGS map areas with street names"
which contains a list of pdf's with osm data overlain on USGS
imagery with streetnames missing from osm at the time of
preparation highlighted - these need adding to osm.
There is nothing to indicate in the wiki which, if any, of
these have been looked at systematically. Checking several at
random has not told me which have been done and which
haven't, except for the last page which has the "No named
streets in this section" comment.
Can anyone say which of these has been done?
Adrian.
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