This was me, but I know that Paul Sladen, Simon Halsey, and probably others,
were also affected.
Has anyone has sent the offending user a message?
He/she is a relative newcomer, and has edited in Trowbridge as well as
Carlton/Gedling. They have also edited in Germany, but no indication of traces
or on-the-ground surveys. Some of my GPS ways unfortunately also had
fixme=location approximate, which was probably as a result of over use of
copying tags from one way to another. This may have invited editing, but other
'corrections' have been made so that now many streets are slightly misaligned
from GPS traces.
I, and I would guess other active contributors around Nottingham, have been
avoiding using StreetView and Locator other than to add names on stuff mapped
from aerial images. In particular the Carlton/Gedling area is one which my
personal preference was to leave the current status as is until ground
surveys
were done. Obviously other contributors have different preferences,
time-scales,
needs etc., so I recognise that this might not be possible. I would hope
thought
that some contact with active local mappers would be made before bulk in-fill
with StreetView or similar sources, particularly as it cannot have escaped
their
attention that this was possible.
Last Summer I mapped a tiny part of Middlesbrough over 2.5 hours. When
StreetView became available an area about 25 times larger was mapped in a
similar timescale. The 'productivity' difference is so huge that a single
armchair mapper can swamp contributions from people doing ground survey. On the
other hand, places like Oldham, Rochdale, Darlington, Middlesbrough are now so
much more usable in OSM.
So we still have the trade-off between usability of the map data, contributor
'happiness', mapping from an armchair versus on-the-ground. The use of
StreetView exemplifies all these issues.
Jerry
From: Simon Ward si...@bleah.co.uk
To: talk-gb@openstreetmap.org
Sent: Sun, 18 July, 2010 13:54:30
Subject: [Talk-GB] “Correcting” existing data with OS Opendata
I just added a comment to the talk page about OS Opendata[1]: It seems
that some people have been using OS Opendata to “correct” existing data,
moving ways to match OS Opendata, and in some cases removing attributes
(such as surface=paved).
Please, please, please, pretty please don’t just assume your data is
better than the existing data, especially if yours is derived from
another source and the existing data is from a ground survey.
[1]:
http://wiki.openstreetmap.org/wiki/Talk:Ordnance_Survey_Opendata#Modifying_Existing_Data
Simon
--
A complex system that works is invariably found to have evolved from a
simple system that works.—John Gall
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