Re: [Tagging] Feature Proposal - RFC - Evacuation Route

2017-09-08 Thread Eric Christensen
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On 09/07/2017 10:53 PM, Nick Hocking wrote:
> Will this proposal contain alternate evacuation routes, and an
> indication by whom and when they would be activated?

If the state/local authorities have designated a route as an evacuation
route then I don't see why the route wouldn't be put into OSM.

Generally speaking, an evacuation route isn't the *only* way out of a
location but, rather, is the recommended way out that avoids hazards
(flooding, etc) and is usually a large thoroughfare, so it's not
imperative that there be a "when" assigned to a route.

With respect to Google, I think they are using their traffic load
monitoring to try to divert traffic from one route to the other to help
balance the load.  This is one feature I wish our tools (maps.me,
OSMAND, etc) had.

- --Eric
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Re: [Tagging] Feature Proposal - RFC - Evacuation Route

2017-09-08 Thread Eric Christensen
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On 09/08/2017 05:05 AM, Lukas Sommer wrote:
> As key:evacuation_route is currently almost exclusively used on
> relations anyway, it might make more sense to deprecate this tag and
> instead define a new value for route=* on type=route relations (and
> than add all the refinements that you propose)…

Dang, yes.  Sorry, what you just said reminded me of what I had thought
many months ago.  With a route you can make them directional which is
important.  I'll make those changes today.

- --Eric
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Re: [Tagging] Emergency shelters

2017-09-08 Thread Eric Christensen
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On 09/07/2017 11:24 AM, Martin Koppenhoefer wrote:
> do you recall why emergency:social_facility=shelter was chosen as a tag,
> rather than a simple "emergency=shelter"? Because social_facility
> shelter in osm is used with a different meaning, so it seems quite odd.

I thought it was an odd choice, as well, but once I thought about it, it
sort of made sense.

The definition of a social_facility is "a feature that provides a social
service."[0]  If you go further down, a social_facility=shelter is
defined as "[a] facility that provides temporary sleeping facilities or
refuge from exposure to the environment."  Isn't that what an emergency
shelter is doing?

- --Eric

[0] https://wiki.openstreetmap.org/wiki/Key:social_facility
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Re: [Tagging] Emergency shelters

2017-09-08 Thread Eric Christensen
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On 09/07/2017 11:12 PM, Nick Hocking wrote:
> Eric wrote   "Why would you delete data that is still valid and
> useful?"
> 
> 
> My concern is that if these are permanent features, then people
> will say "ooh - they'll be the same as last time" and of course
> they probably won't be the same as last time and we may route
> people to a wrong place, with possible tragic results.

I would say that shelters probably would be the same as last year.
It's very difficult to find structures that meet the criteria for
being shelters in the first place so thinking that you're going to
play a shell game with them really isn't going to happen.  The
shelters that I used to deal with are still shelters today some
fifteen years later and they were shelters for at least a decade when
I came into the job.

> I agree that this information should be left in place, but marked
> , unusable, until specifically activated by authorities, which I
> agree should be well ahead of time, so long as people know that
> they will not be usable until a state of emergency is declared.

I believe that's a given being that it's an emergency shelter.  That
said, I think we can use the 'note' key to make some sort of
declaration to that extent as I suspect there are some public tornado
shelters in the Midwest (US) that are available 24/7 whereas out here
on the east coast many hurricane shelters are stood up on an as-needed
basis.

> I also think that this information should NOT be edited, in any way
> by anyone other than the authorities. This brings back the old
> arguments about read only data in OSM.

One could make the same argument about roads or any other data.  This
is an open database and we all "garden" the data to make sure that the
information is correct.  Google has a closed database and it's a pain
for an "authoritative source" to get their one-off information into
it.  To go down the route of creating authoritative sources would
require way too much work to establish relationships with a lot of
agencies that likely do not wish to participate in the first place.
Further, we'd have to establish a trust relationship with them to be
able to authenticate them as the authenticated source.  Who is to say
that they would even maintain the data?  To me, the crowd is a much
better source and so far we've been doing pretty well.

- --Eric
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Re: [Tagging] Emergency shelters

2017-09-07 Thread Eric Christensen
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On 09/07/2017 04:08 AM, Nick Hocking wrote:
> The list of emergency centers would be very much dependent on where
> the threat is and what the nature of the threat is.

As a former emergency management planner I'll go on the record as
saying... kinda.  Generally speaking, most emergency plans (and, by
extension, emergency resources) are considered all-hazards in nature.

> Therefore I see these as being loaded (by the relevant authorities)
> only when a state of emergency is declared and only for the areas
> affected.

Emergency managers generally make this information publicly available
well in advance of any emergency so people can make proper plans to
get to their shelter or to obtain emergency resources.  There really
isn't time to start making declarations, uploading data, and hoping
people will be able to get rendered data when a tsunami or tornado is
on the way.

> These locations would therefore be available (on OSM) online, 
> immediately, and available for download shortly after. Since the
> areas are relatively small the downloads would not be a big issue.

Define "small".  Right now you have Hurricane Irma taking aim at the
states of Florida, Georgia, South Carolina, and North Carolina.  This
is not including the surrounding states that would also be taking in
evacuees.  This storm, larger than the state of Ohio, is going to do
some damage on a very large swath of land (and already has to quite a
few islands!).

> Once the state of emergency is rescinded, the data could be
> deleted.

Why would you delete data that is still valid and useful?  Shelters
take months to identify, work up agreements with building owners and
who will actually manage the shelter, determine how to supply the
shelter with supplies, how to staff the shelter, and many other
things.  One doesn't just show up to a building and declare it a
shelter nor does one just remove a shelter from a list after a
disaster (unless it's been shown to have been ineffective).  These are
well thought out, planned for, and exercised resources.

> Since these tags would only be used by the authorities, I believe
> that they should be unique to them.

I don't even understand this statement.

I'm a proponent of putting emergency information onto the map so
people have this information with them at all times.  No matter where
in the world you are you should be able to obtain information about
finding shelter, evacuation routes, water, supplies, and information.
 Some of this information will be dynamic but much of this information
is permanent.  The dynamic resources will be made available via
permanent information resources so documenting those will help fill
the gaps.

- --Eric
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[Tagging] Feature Proposal - RFC - Evacuation Route

2017-09-07 Thread Eric Christensen
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https://wiki.openstreetmap.org/wiki/Proposed_features/Evacuation_routes

Emergency evacuation routes, with direction, for various types of
emergencies.

Thanks,
Eric "Sparks"
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Re: [Tagging] Fire hydrants vs suction_point

2017-08-17 Thread Eric Christensen
On 08/17/2017 10:47 AM, Viking wrote:
> In the case of commercial/industrial local water networks fed by pumps, we 
> all agree to use emergency=fire_hydrant. Because externally (at least here in 
> Italy) they are not distinguishable from hydrants fed by public mains and 
> they have the same usage.

+1

> For the tag emergency=dry_hydrant, at this point I wouldn't introduce it, 
> because we already have emergency=suction_point that covers a wider range of 
> cases, as Moritz says.

+1

> Productivity can become flow_capacity, as it is for fire_hydrants.

+1


--Eric

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Re: [Tagging] Fire hydrants vs suction_point

2017-08-17 Thread Eric Christensen
On 08/17/2017 10:12 AM, marc marc wrote:
> Hello,
> 
> Le 17. 08. 17 à 14:50, Moritz a écrit :
>> the hydrant (by the meaning of the word) is something connected
>> to the water main ;)
> If I read the previous wikipedia link, there are pressurized hydrant and 
> not-pressurized hydrant.
> If wikipedia use the word hydrant for both, maybe the "by the meaning of 
> the world" is that.
> A common tag for both + a subtag for pressurized or not isn't enough ?
> Or you like 2 tag for render and/or to avoid the need to check subtag ?
> 
> When I'm walking on a street and find "something that give water to be 
> used against fire" and I read "2 bars" on it, I have no way if it's 
> connected to a pressurized network or if it's a tank with a pump in it.
> I didn't even know it existed before reading it in this discussion.

That's not really what's being discussed here.  A non-pressurized
hydrant wouldn't be attached to a tank at all.  It would require a fire
engine to suck the water out.  It does not look like a traditional fire
hydrant at all.

Many of the ones I'm used to look like this:

http://www.dof.virginia.gov/fire/dryhydrant/index.htm

There is no confusing this with a pressurized hydrant.

--Eric

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Re: [Tagging] Fire hydrants vs suction_point

2017-08-17 Thread Eric Christensen
On 08/17/2017 08:50 AM, Moritz wrote:
> But "dry" hydrants are always connected to other water sources like
> ponds, wells, water_tanks.
> They are not isolated things on the field. So you have the "dry" hydrant
> which is next to a pond/lake/etc. and
> connected to it.

A dry hydrant is just a convenient drafting point for getting water in
rural areas.  Where I used to work as a firefighter we had designated
water sources that we could use to supply tankers in the event of a
fire.  Many times it would be dangerous to get too close to the edge of
a pond with the fire engine or would require more suction hose to reach
to water than we would usually carry on the engine.  In those areas we
would install these dry hydrants.  Hook up to them with a short piece of
hard suction hose, pull a draft, and flow water.

I would suggest marking designated water sources as that: water sources.
 If they have a dry hydrant then all the better and that should be
mapped to make it easier to locate (especially at night).  But dry
hydrant or not, a pond, lake, canal, etc, that is suitable for fire
water source operations should be mapped as such.

Of course such ponds, lakes, canals, should be designated by the local
authority.

--Eric

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[Tagging] Evacuation Routes

2017-05-08 Thread Eric Christensen
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Greetings from Maryland (USA),

Here in the USA we're getting prepared for our Hurricane Season[0].  I
worked for ten years in the disaster preparedness world and did a lot
to help people prepare for the inevitable.  With that said, I'd like
to make a recommended change to the 'evacuation_route' key[1] in hopes
of making it more useful without, hopefully, making it too complicated
for the cartographers out there.

The current tagging system is likely not being rendered by any
software out there and seems to be a one-off.  To me this *should* be
a type of route which would show direction and, perhaps, the type of
emergency when this route would be active.

This type of tagging shouldn't be specific to the USA and should be
generic enough to be globally used.

On the rendering side of things, I could see a switch being toggled
that would gray out everything but emergency routes, emergency
resources (shelters, food, water, etc), and other resources that could
be turned on individually.  One could even store evacuation points and
meeting locations on these maps making it much easier for someone to
navigate during an emergency.

Currently there are less then 5,000 implementation globally.

Thoughts?

Thanks,
Eric "Sparks"


[0]
https://travel.state.gov/content/passports/en/emergencies/natural-disast
ers/HurricaneSeason.html
[1] https://wiki.openstreetmap.org/wiki/Key:evacuation_route
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