Re: [OSM-talk] no-go-areas

2020-01-05 Thread stevea
On Jan 5, 2020, at 9:48 PM, Julien djakk  wrote:
> Hello ! For this kind of tagging, which is as subjective as the 
> highway=secondary, there should be a consensus of local mappers. 
> 
> This kind of areas could be tagged as “you need to know the area to be safe 
> among locals” :-)

I listen to this as potentially reasonable, but I am left with the (obvious?) 
question:  what, exactly, is the specific hazard?  Is it characterizable, 
identifiable?  Is there a formal border around it?  Does everybody agree?  All 
of those seem difficult "to be (true) simultaneously" (as I understand what is 
meant when somebody suggests "avoid that area because of, or unless..."), so I 
fall on the side of "if no identifiable hazard, then no specific tag."  In 
short, I think we agree:  too subjective.  Even WITH a consensus of local 
mappers, I don't believe it stands tall enough unless it rises to "true" for 
all three of those questions.  And likely some more I haven't typed here, too.  
(Others might).

Specific hazards, that are characterizable, identifiable, confined to a 
well-defined area and widely agreed upon?  Yes, Earth likely has some of those. 
 A node tagged hazard=* might work well.  This feels like a rough sketch only 
(still) despite getting shot down repeatedly as an unfocused or wholly wrong 
idea.

SteveA
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Re: [OSM-talk] no-go-areas

2020-01-05 Thread Julien djakk
Hello ! For this kind of tagging, which is as subjective as the
highway=secondary, there should be a consensus of local mappers.

This kind of areas could be tagged as “you need to know the area to be safe
among locals” :-)

Julien “djakk”



Le lun. 6 janv. 2020 à 05:23, Paul Johnson  a écrit :

>
>
> On Tue, Dec 31, 2019 at 12:10 PM Mark Wagner 
> wrote:
>
>> On Tue, 31 Dec 2019 16:14:30 +0100
>> Martin Trautmann  wrote:
>>
>> > hi all,
>> >
>> > did you read about the Suisse tourist couple which was shot because
>> > they got lost in a Brasilian favela?
>> >
>> > NZZ (Neue Zürcher Zeitung) from Tuesday 31.12.2019. ("Schweizer
>> > Ehepaar bei Irrfahrt duch Favela in Brasilien
>> > angeschossen")
>> >
>> > Other examples are e.g. Mafia areas within Kosovo - or name your own
>> > home town no-go area.
>> >
>> > Is there any option to mark certain areas in order to bypass routing
>> > whenever possible?
>> >
>>
>> The problem is that most of these "no-go" areas are subjective, both in
>> boundary and in level of danger.  If you ask a half-dozen people, you
>> might get a half-dozen responses ranging from "I go there all the time"
>> to "The police don't patrol in less than platoon strength".
>>
>
> Yeah, I get this same impression.  This has the potential to rear its head
> in a really classist, and varying ranges of racist, ways as well.  For
> example, go post on Reddit on any given city's subreddit, and ask "I'm
> moving to ___, what parts of town should I avoid?"  Fair warning, try this
> for a city you're familiar with, and be prepared to die a little inside
> with the answers you get.
>
> Personally, I'm more likely to consider middle-class suburbia a no-go area
> because large parking lots make it easy for car prowlers no matter how many
> police are on the streets, transit coverage tends to be iffy before morning
> and after evening peak commuter hours, and 5+-lane-wide boulevards tend to
> be not-safe-for-life if you need to traverse them without using a car.
> Your mileage may vary.
>
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Re: [OSM-talk] no-go-areas

2020-01-05 Thread Paul Johnson
On Tue, Dec 31, 2019 at 12:10 PM Mark Wagner  wrote:

> On Tue, 31 Dec 2019 16:14:30 +0100
> Martin Trautmann  wrote:
>
> > hi all,
> >
> > did you read about the Suisse tourist couple which was shot because
> > they got lost in a Brasilian favela?
> >
> > NZZ (Neue Zürcher Zeitung) from Tuesday 31.12.2019. ("Schweizer
> > Ehepaar bei Irrfahrt duch Favela in Brasilien
> > angeschossen")
> >
> > Other examples are e.g. Mafia areas within Kosovo - or name your own
> > home town no-go area.
> >
> > Is there any option to mark certain areas in order to bypass routing
> > whenever possible?
> >
>
> The problem is that most of these "no-go" areas are subjective, both in
> boundary and in level of danger.  If you ask a half-dozen people, you
> might get a half-dozen responses ranging from "I go there all the time"
> to "The police don't patrol in less than platoon strength".
>

Yeah, I get this same impression.  This has the potential to rear its head
in a really classist, and varying ranges of racist, ways as well.  For
example, go post on Reddit on any given city's subreddit, and ask "I'm
moving to ___, what parts of town should I avoid?"  Fair warning, try this
for a city you're familiar with, and be prepared to die a little inside
with the answers you get.

Personally, I'm more likely to consider middle-class suburbia a no-go area
because large parking lots make it easy for car prowlers no matter how many
police are on the streets, transit coverage tends to be iffy before morning
and after evening peak commuter hours, and 5+-lane-wide boulevards tend to
be not-safe-for-life if you need to traverse them without using a car.
Your mileage may vary.
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Re: [OSM-talk] no-go-areas

2020-01-01 Thread stevea
Right, Martin; thanks.  Joseph and I discussed off-list there is some 
conflation of tags from hazard=* which intersect well with at least one or two 
existing military=* tag values.  So, yes, there is some overlap with existing 
tag (natural=cliff, too).

I have read our hazard wiki (thanks for the ref) and also mentioned to Joseph 
that hazard=* seems (in addition to being 12 years old and ripe for an update) 
a bit too much "car and driver" oriented.  For example, if a sign warns of 
"moose crossing" or "children often play near this roadway here" OK, put that 
sign on a node onto or next to the highway.

In addition to chasm going away, radioactive hazards (there's ionizing 
radiation, RF energy...) and that there are even places where you wouldn't want 
to be standing during a thunderstorm as they are struck by lightning repeatedly 
(yes, really:  seems there might be one or two in Texas and Canada) there are 
really verifiable "hazard=yes" places (that are not subjective and quite 
verifiable) where a node and a brief mention might be a real thing we could 
very well want to add to our map.  Nudge forward, I don't have massive passion 
or energy to go much further with it, next up, please!  (Yeah).

What a great project, OSM.  (I truly mean that).

SteveA
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Re: [OSM-talk] no-go-areas

2020-01-01 Thread Martin Koppenhoefer


sent from a phone

> On 31. Dec 2019, at 19:37, stevea  wrote:
> 
> Many (most?) like radiation, live minefields, military bombing areas,


military=danger_area

https://wiki.openstreetmap.org/wiki/Tag:military%3Ddanger_area


hazard=*

https://wiki.openstreetmap.org/wiki/Proposed_features/hazard

Cheers Martin 


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Re: [OSM-talk] no-go-areas

2019-12-31 Thread stevea
I've certainly tagged plenty of natural=cliff (and I'm not done yet), there's 
lots of them around me.  So perhaps hazard=chasm could deprecate as one value 
of the proposed key hazard, deferring to natural=cliff.

Still, there are plenty of objective, not-going-away-soon, 
not-politically-sensitive hazards on Earth.  We should map and render them, but 
to do so, we might resurrect a more-modern version of the hazard tag proposal.  
Or anything else that would do the job.  These do seem like good, smart things 
to map.

Good dialog, thank you everybody.

SteveA

> On Dec 31, 2019, at 10:59 AM, Mateusz Konieczny  
> wrote:
> 
> 31 Dec 2019, 19:35 by stevea...@softworkers.com:
> Really? Actual, real-life hazards like [chasm
> natural=cliff?


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Re: [OSM-talk] no-go-areas

2019-12-31 Thread Mateusz Konieczny

31 Dec 2019, 19:35 by stevea...@softworkers.com:

> Really?  Actual, real-life hazards like [chasm
>
natural=cliff?___
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Re: [OSM-talk] no-go-areas

2019-12-31 Thread stevea
Really?  Actual, real-life hazards like [chasm, radiation, rock_slide, 
minefield...] are not worthy of that tag on a node and some Carto-code to toss 
up a triangle-! icon on our map?  Where's the harm?  (Literally).

Perhaps we implement these without including (or specifically EXcluding) the 
more "sensitive" ones which are considered "subjective."  We can't be "too 
subjective" if we aren't subjective at all.  But, explicitly objective hazards 
do seem worthy to map.

Many (most?) like radiation, live minefields, military bombing areas, sharp 
bluffs / cliffs are not transient at all and would likely remain as long-term 
hazards.

I think we should revisit this rather than dismiss it matter-of-factly as "oh, 
that hazard thing that pops its head up every year or so."

SteveA
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Re: [OSM-talk] no-go-areas

2019-12-31 Thread Dave F via talk
This question rears its head every year or so & the conclusions are 
always the same:


Far too subjective, Far too transient. Best left to be shown as an 
overlay by local authorities.

My police force produce both crime & road traffic collision maps.

DaveF

On 31/12/2019 15:14, Martin Trautmann wrote:

hi all,

did you read about the Suisse tourist couple which was shot because they
got lost in a Brasilian favela?

NZZ (Neue Zürcher Zeitung) from Tuesday 31.12.2019. ("Schweizer Ehepaar
bei Irrfahrt duch Favela in Brasilien
angeschossen")

Other examples are e.g. Mafia areas within Kosovo - or name your own
home town no-go area.

Is there any option to mark certain areas in order to bypass routing
whenever possible?


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Re: [OSM-talk] no-go-areas

2019-12-31 Thread Mark Wagner
On Tue, 31 Dec 2019 16:14:30 +0100
Martin Trautmann  wrote:

> hi all,
> 
> did you read about the Suisse tourist couple which was shot because
> they got lost in a Brasilian favela?
> 
> NZZ (Neue Zürcher Zeitung) from Tuesday 31.12.2019. ("Schweizer
> Ehepaar bei Irrfahrt duch Favela in Brasilien
> angeschossen")
> 
> Other examples are e.g. Mafia areas within Kosovo - or name your own
> home town no-go area.
> 
> Is there any option to mark certain areas in order to bypass routing
> whenever possible?
> 

The problem is that most of these "no-go" areas are subjective, both in
boundary and in level of danger.  If you ask a half-dozen people, you
might get a half-dozen responses ranging from "I go there all the time"
to "The police don't patrol in less than platoon strength".

-- 
Mark

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Re: [OSM-talk] no-go-areas

2019-12-31 Thread stevea
As a long-time OSMer, I offer perspective on two "dangerous areas" near me, one 
past, one present.

On my university campus (University of California) there WAS an area in a 
meadow which was grazed by cattle (both from the original landuse from a 
century ago and presently, as these meadows are grazed by cattle even today, at 
a university of tens of thousands of students).  A decade and longer ago, there 
was a swale (low-lying area) which I believe was human-converted into a sort of 
reservoir for watering cattle, but it had steep sides, was quite deep and could 
be impossible for humans or cattle to escape if they fell into it, especially 
when empty / dry.  Not by me, but this was marked on OSM as a "no go area," 
which I always found curious, as that wasn't an explicitly defined tag.  I'm 
nearly certain that today, this dangerous area has been "remedied" (filled in 
with dirt) and no longer exists as a hazard on campus.  In OSM, there is no 
longer anything (node, way) in the area to tag as such; it has effectively 
disappeared from both the real world and our map.

Also near me is a "beach" (it sort of is, sort of isn't) which is a dangerous 
place to ocean-swim, it is known locally as the "Toilet Bowl" as it has nasty 
churning surf and undertow currents which I believe have drowned at least one 
person.  When I heard local news that such a drowning occurred yet again, I 
endeavored to tag a node there with name=Toilet Bowl (dangerous area, no 
swimming) + swimming=no + hazard=yes.  (Yes, I know that violates "name is name 
only").  Also, there isn't a "physical" tag (like natural=beach, as that is 
unusual, though not wholly wrong, on a node).  Yet I couldn't help but feel 
that hazard=yes, a "draft / underway proposal" (since 2007?! really?) is 
insufficient:  the value "yes" isn't documented in the proposal, and others 
listed there, like chasm, radiation, rock_slide, minefield, playing_children... 
didn't fit a dangerous swimming area.  Plus, the hazard tag doesn't render (a 
triangle with exclamation point might be a good starting icon).

I believe OSM needs better, explicit tagging to identify dangerous, hazardous 
areas, and Carto should render these.  There are many different kinds of these, 
from those I just noted, to "high-crime area" and what others might consider 
sensitive or political.  (We shouldn't be afraid to say that an explicit hazard 
exists if one does).  A proposal that seems to have gotten stuck for 12 years 
seems it's a good starting point, can it be resurrected?  OSM mapping these 
would be another welcome feature in our map, as I know of no other 
general-purpose map (that IS how many use OSM) which identifies these sorts of 
"everyday" hazards.  Think about it:  a hazardous situation might find YOU one 
day, and you might be very glad you saw this on a map beforehand so you could 
avoid it.

SteveA
California
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Re: [OSM-talk] no-go-areas

2019-12-31 Thread James
Wouldn't that just be a crime map or a bias towards areas vs others.

Sounds like an osm use case more than a needed tag

On Tue., Dec. 31, 2019, 10:18 a.m. Martin Trautmann,  wrote:

> hi all,
>
> did you read about the Suisse tourist couple which was shot because they
> got lost in a Brasilian favela?
>
> NZZ (Neue Zürcher Zeitung) from Tuesday 31.12.2019. ("Schweizer Ehepaar
> bei Irrfahrt duch Favela in Brasilien
> angeschossen")
>
> Other examples are e.g. Mafia areas within Kosovo - or name your own
> home town no-go area.
>
> Is there any option to mark certain areas in order to bypass routing
> whenever possible?
>
> ___
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>
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[OSM-talk] no-go-areas

2019-12-31 Thread Martin Trautmann
hi all,

did you read about the Suisse tourist couple which was shot because they
got lost in a Brasilian favela?

NZZ (Neue Zürcher Zeitung) from Tuesday 31.12.2019. ("Schweizer Ehepaar
bei Irrfahrt duch Favela in Brasilien
angeschossen")

Other examples are e.g. Mafia areas within Kosovo - or name your own
home town no-go area.

Is there any option to mark certain areas in order to bypass routing
whenever possible?



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