[OSM-talk] Postmortem analysys

[Matt Amos]

On Sun, Jan 9, 2011 at 12:09 PM, Lester Caine <lester at lsces.co.uk> wrote:
> The original decision that there should be no duplicate nodes simply ignored
> many of the arguments that there are very good reasons for needing them,
> then tools like the duplicate nodes map ASSUME that the decision takes
> priority rather than allowing 'duplicates' which are distinguished due to
> their elevation?

the duplicate nodes map doesn't assume that all duplicates are errors
(http://matt.dev.openstreetmap.org/dupe_nodes/about.html#errors). it's
simply a tool for finding them - because most of them are errors, -
and it's nice to have tools which help in fixing them. as Tom points
out, it seems that some are simply a little too zealous in fixing
them, maybe relying too heavily on the auto-fix feature in JOSM's
validator, and should be looking at the data more thoroughly.

cheers,

matt