Re: [Tagging] Proper way to tag highways located in "dangerous" areas

2016-11-20 Thread Frederik Ramm
Hi,

On 11/17/2016 08:42 PM, Paul Johnson wrote:
> I don't think it's appropriate to put into the main toolchain or map
> data in itself; would be better off as your own specialized mashup
> keeping in mind that enormous can of worms...

I agree; there are lots of other interesting things that might be useful
for routing, for example how likely it is to step into dog poo, how
rainy the weather is in an area, how loud during rush hour or how dark
at night; how accident-prone an intersection or how beautiful the
landscape. Some of these are clearly non objective, others can be
pseudo-objective like the crime figures but they'll often be biased, or
not comparable across jurisdictions or even cities... I think adding any
of this to OSM would move us away from being a database of easily
observable facts, into the realm where people will fight endlessly about
what the facts really are.

Let's not go there. Let's stick to "if two people cannot agree what to
put in OSM, let them meet at the place in question, see things with
their own eyes, and settle the argument". Anything that cannot be
resolved that way (or, by extension, through a photo or sending someone
else to go and look) will only cause trouble.

Bye
Frederik


-- 
Frederik Ramm  ##  eMail frede...@remote.org  ##  N49°00'09" E008°23'33"

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Re: [Tagging] Proper way to tag highways located in "dangerous" areas

2016-11-20 Thread Janko Mihelić
That means it's flawed, not subjective. So give it a few sources, and they
will more or less cancel each others flaws.

Recording crime rate is not an exact science, so of course it can never be
perfect. But perfect is the enemy of good enough.

Janko

sub, 19. stu 2016. u 12:53 Paul Johnson  napisao je:

On Thu, Nov 17, 2016 at 2:15 PM, Janko Mihelić  wrote:

On Thu, 17 Nov 2016, 20:44 Paul Johnson,  wrote:


Don't.  Too subjective, and tends to highlight some kinds of bigotry while
basically giving a pass to other kinds.


How is it subjective if you take data from the local police?


Very.  Portland Police, for example, have a policy of not taking reports if
nobody gets sent to the hospital or the crime isn't a felony in an effort
to keep the city's crime stats artificially low.
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Re: [Tagging] Light rail station tagging

2016-11-20 Thread Paul Johnson
On Sat, Nov 19, 2016 at 11:00 PM, Michael Tsang  wrote:

> Dear all,
>
> I tagged the public_transport=stop_position's on the light rail network
> in my
> region with railway=tram_stop, because the wiki mentions that "Insert a
> node
> with railway=tram_stop and name=* on the tram track (railway=tram) at the
> position where the stop is located." However, the light rail stations
> actually
> resembles "railway halts" (the layout is exactly the same as the image in
> the
> wiki, with only the station building missing), and I have also put a
> "railway=halt" (or "railway=station" for stations with switches) in the
> middle.
>
> This changeset attracted a comment "railway=tram_stop is probably a bad
> idea
> for the stop positions, causes rendering mess. Maybe better just to use
> railway=stop". What's the generally accepted practice for tagging light
> rail
> stations which resembles "railway stations" or "railway halts"?
>

Portland, Oregon has at least a hundred examples, if you want to scroll
around that light rail system.
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