[talk-au] SSSI National Bushfire Recovery Map-a-thon - Sunday 9th Feb

Andrew Harvey andrew.harvey4 at gmail.com
Thu Feb 6 13:34:54 UTC 2020

On Thu, 6 Feb 2020 at 20:52, Andrew Davidson <theswavu at gmail.com> wrote:

> On 6/2/20 8:39 pm, Ewen Hill wrote:
> >    The states have sent out a rapid impact assessment teams to all areas
> > now and have followed up with detailed analysis in most. We know what
> > has been damaged, destroyed and what was inhabited, what wasn't and what
> > other assets were damaged. We also know the structure type, bedroom
> > count etc. Any updates on Sunday are not going to help anyone in social
> > services, council, planning, asbestos removal. I honestly don't know
> > what benefit this will be and as Warin correctly stated, updated.
> I agree. I was thinking about the utility of trying to map this stuff
> from aerial imagery when the groups that are responding will all ready
> have much better datasets. Australia is not Haiti or Nepal.

I checked out the provided imagery from Planet Labs, from what I could tell
the resolution is too low to make out buildings, for large buildings you
might see a 4 white pixels, but not enough to confidently make out that
it's a building let alone if it's destroyed or not.

> This is one of the biggest problems with the damaged=* tag. It needs to
> be updated regularly because we know that it's a temporary state, and
> who is going to do that?

Yes it will go out of date quickly but so does landuse=construction. If
anything by flagging it as damaged, ruined, razed it attributes this
feature as needed to be checked again soon. StreetComplete already does
this for landuse=construction, every month or so it will prompt you "Is
this feature still in construction?".
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