Re: [Tagging] RFC: place=quarter, Parts of settlements, proposed hierarchy: suburb - quarter - neighbourhood

2011-09-28 Thread Martin Koppenhoefer
2011/9/28 Nathan Edgars II nerou...@gmail.com:
 On 9/27/2011 8:26 PM, Martin Koppenhoefer wrote:
 How? What's wrong with all of the sub-Manhattan entities being
 place=neighborhood?


not sure if there is something wrong there, so you could (as local
mapper) decide to do it like this. In other parts of the world mappers
have expressed the desire to have this hierarchy (they identified 3
levels necessary for their area), that's the reason for the quarter
proposal.


 Maybe quarter would be the best tag for the boroughs,
 but it seems like a horrible term for something that's not literally a
 quarter of the city.


A borough is an administrative entity and therefore already
represented with admin_level and boundary.

Generally you shouldn't interpretate the tags literally but see them
as a code, where the actual meaning is by (our=OSM) definition
(generally in the wiki). It does not make sense to have one tag for
quarters and one for sestieres http://en.wikipedia.org/wiki/Sestiere .

An osm-suburb is not a (suburb=in suburbia).

cheers,
Martin

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Re: [Tagging] RFC: place=quarter, Parts of settlements, proposed hierarchy: suburb - quarter - neighbourhood

2011-09-28 Thread Brad Neuhauser
Martin, I'm not sure the NYC example is helping.  You mentioned this was
discussed on the German mailing list--can you give some other examples from
Germany (or whereever) about how this might be used?  Thanks, Brad

On Wed, Sep 28, 2011 at 3:57 AM, Martin Koppenhoefer dieterdre...@gmail.com
 wrote:

 2011/9/28 Nathan Edgars II nerou...@gmail.com:
  On 9/27/2011 8:26 PM, Martin Koppenhoefer wrote:
  How? What's wrong with all of the sub-Manhattan entities being
  place=neighborhood?


 not sure if there is something wrong there, so you could (as local
 mapper) decide to do it like this. In other parts of the world mappers
 have expressed the desire to have this hierarchy (they identified 3
 levels necessary for their area), that's the reason for the quarter
 proposal.


  Maybe quarter would be the best tag for the boroughs,
  but it seems like a horrible term for something that's not literally a
  quarter of the city.



 A borough is an administrative entity and therefore already
 represented with admin_level and boundary.

 Generally you shouldn't interpretate the tags literally but see them
 as a code, where the actual meaning is by (our=OSM) definition
 (generally in the wiki). It does not make sense to have one tag for
 quarters and one for sestieres http://en.wikipedia.org/wiki/Sestiere .

 An osm-suburb is not a (suburb=in suburbia).

 cheers,
 Martin

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Re: [Tagging] Lanes tag, way forward

2011-09-28 Thread Pieren
2011/9/22 Kytömaa Lauri lauri.kyto...@aalto.fi:

Sorry if I raise the discussion again but our documentation about
lanes still doesn't clarify our position on how we count lanes (e.g.
psv lanes) and turning lanes:
http://wiki.openstreetmap.org/wiki/Lanes

 (3) Few days back there were, globally, 721 turnlanes relations
 last edited by only 31 users.

Nice stats. Could you say how you retrieve such numbers ? I would love
to find stats about relations and relations roles in OSM db.

 The turnlanes plugin seems to work splendidly

Am I the only one who think that the turnlanes plugin is splendid but
unworkable for average contributors, reserved to one editor (JOSM) and
resulting data (relations) obscure/opaque/cryptic for humans ?
Did someone tried a different, simpler proposal about turning lanes ?

Pieren

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Re: [Tagging] Lanes tag, way forward

2011-09-28 Thread Richard Fairhurst
Pieren wrote:
 Am I the only one who think that the turnlanes plugin is splendid 
 but unworkable for average contributors, reserved to one editor 
 (JOSM) and resulting data (relations) obscure/opaque/cryptic 
 for humans ?

No, you're certainly not the only person who thinks that!

cheers
Richard



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Re: [Tagging] Feature Proposal - RFC - bike safety

2011-09-28 Thread Josh Doe
On Tue, Sep 27, 2011 at 7:58 PM, Martin Koppenhoefer
dieterdre...@gmail.com wrote:
 2011/9/27 Nathan Edgars II nerou...@gmail.com:
 On 9/27/2011 4:57 PM, Gérard wrote:
 Given that studies disagree about what makes a street safe for cyclists, any
 tagging would be based not on safety but on how comfortable the mapper feels
 while riding in his or her preferred style. Use hazard:bicycle if there's a
 specific hazard (e.g. door zone bike lane, badly-positioned drainage grates,
 angled railway crossing, attack dogs that chase cyclists). Otherwise safety
 depends much more on how defensively the cyclist rides than how the street
 is designed.

+1

Unfortunately this is true. What's needed is to document the objective
facts about a roadway that can then be interpreted to give a safety
level tailored to each rider, whether a 10 year old biking to school
or a seasoned road biker who doesn't mind occupying a travel lane on a
35 mph road.

We need to look at existing bike level of service metrics and figure
out what components can be easily recorded by the average mapper, and
create our own set of metrics to determine road safety:
http://www.bikelib.org/bike-planning/bicycle-level-of-service/
(search bicycle level of service for many more)

Some of of the more important ones:
Through lanes (see recent lanes=* discussion, ambiguity of total vs.
through lanes, maybe lanes:through=*)
Width of outside lane (no tags for this AFAIK)
Shoulder details (width, surface: http://wiki.openstreetmap.org/wiki/Shoulder)
Traffic volume (will have to post-process from government/private
data, as almost 100% think this doesn't belong in OSM, due to
variability and difficulty of measurement)
Speed limit (maxspeed=*)

Perhaps we should start a new discussion thread on developing these criteria?

-Josh

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Re: [Tagging] Feature Proposal - RFC - bike safety

2011-09-28 Thread Nathan Edgars II

On 9/28/2011 12:08 PM, Josh Doe wrote:

Width of outside lane (no tags for this AFAIK)
Shoulder details (width, surface: http://wiki.openstreetmap.org/wiki/Shoulder)


This only applies if you ride as far right as possible. It's safer to 
ride in the middle of the right lane, and causes little inconvenience if 
there's low traffic or more than one lane in each direction.


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Re: [Tagging] Feature Proposal - RFC - bike safety

2011-09-28 Thread John F. Eldredge
Nathan Edgars II nerou...@gmail.com wrote:

 On 9/28/2011 12:08 PM, Josh Doe wrote:
  Width of outside lane (no tags for this AFAIK)
  Shoulder details (width, surface:
 http://wiki.openstreetmap.org/wiki/Shoulder)
 
 This only applies if you ride as far right as possible. It's safer to 
 ride in the middle of the right lane, and causes little inconvenience
 if 
 there's low traffic or more than one lane in each direction.
 

Riding a bicycle in the middle of the outside lane will cause little 
inconvenience to motorized traffic if there are multiple lanes each way AND 
traffic is light.  If you try this at rush hour, I guarantee you will tick off 
a lot of motorists, and possibly even receive a ticket from the police for 
impeding traffic, depending upon the local traffic laws.

-- 
John F. Eldredge -- j...@jfeldredge.com
Reserve your right to think, for even to think wrongly is better than not to 
think at all. -- Hypatia of Alexandria


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Re: [Tagging] Feature Proposal - RFC - bike safety

2011-09-28 Thread Pieren
On Wed, Sep 28, 2011 at 6:08 PM, Josh Doe j...@joshdoe.com wrote:
 Unfortunately this is true. What's needed is to document the objective
 facts

Then we can delete the keys smoothness , sac_scale, mtb:scale
and tracktype. But, oh no, they seem to be widely used. Perhaps
because they summarize in a simple tag a list of parameters which are
otherwise complicated and painful to add when you really contribute to
OSM.
What was possible for all these scale tags could be reproduced for
bike hazard, no ? We just need a clear definition with objective facts
for each value.

Pieren

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Re: [Tagging] Feature Proposal - RFC - bike safety

2011-09-28 Thread Toby Murray
This discussion has happened before. I guess it will happen again.

The argument that more hard-core riders can't judge the bicycle
friendliness of a road is ridiculous. Any bicycle friendliness tags
will obviously be targeted at average commuting cyclists. The fact
that *I* ride along a road regularly in padded lycra shorts doesn't
mean I would recommend it to others or that little Bobby should use it
to get to school. There may certainly be occasional differences of
opinion but, well... welcome to OSM.

And yes, it would be nice to have every minute detail of a road tagged
in OSM. But let's be realistic here. Especially in the US, we're lucky
to even have mappers to correct major geometry problems. Lanes,
maxspeeds, shoulder width, etc won't be in a usable condition in OSM
(at least in most of the midwestern US) for years to come. But people
who are intereseted in cycling can (and have) easily add a single tag
and get some basic data into the system. If the data ever gets good
enough that these general, somewhat subjective tags aren't needed then
by all means, remove them. As always with OSM, things iterate towards
completeness.

Toby

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Re: [Tagging] Feature Proposal - RFC - bike safety

2011-09-28 Thread Nathan Edgars II

On 9/28/2011 2:13 PM, Toby Murray wrote:

But people
who are intereseted in cycling can (and have) easily add a single tag
and get some basic data into the system.


I can accept this. But don't call it safety, since it's not. Call it 
something that makes it clear that it's about how comfortable a 
beginning or timid cyclist will be on the road.


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Re: [Tagging] Feature Proposal - RFC - bike safety

2011-09-28 Thread John F. Eldredge
Nathan Edgars II nerou...@gmail.com wrote:

 On 9/28/2011 2:13 PM, Toby Murray wrote:
 But people
  who are intereseted in cycling can (and have) easily add a single
 tag
  and get some basic data into the system.
 
 I can accept this. But don't call it safety, since it's not. Call it 
 something that makes it clear that it's about how comfortable a 
 beginning or timid cyclist will be on the road.
 

The degree of safety (for any rider) and the suitability for inexperienced 
riders are also dependent on factors such as traffic levels at different times 
of day, weather conditions, and the like, so any routing advice has to be taken 
with a grain of salt.

-- 
John F. Eldredge -- j...@jfeldredge.com
Reserve your right to think, for even to think wrongly is better than not to 
think at all. -- Hypatia of Alexandria


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[Tagging] rest_area and service road

2011-09-28 Thread Pieren
What is our recommendation for tagging the access roads entering or
leaving motorway service(s) areas ?
Is is highway=service like here:
http://www.openstreetmap.org/?lat=48.808617lon=9.047404zoom=18layers=M

Or highway=motorway_link like here:
http://www.openstreetmap.org/?lat=33.678414lon=-115.965905zoom=18

The wiki is not clear about this. I found :
Use highway=service for the roads within the service area.
on this page : http://wiki.openstreetmap.org/wiki/Tag:highway%3Dservices

But also :
motorway_link can also be used for the slip roads into and out of
motorway service/rest areas
here: http://wiki.openstreetmap.org/wiki/Tag:highway%3Dmotorway_link

Pieren

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Re: [Tagging] rest_area and service road

2011-09-28 Thread Nathan Edgars II

On 9/28/2011 3:04 PM, Pieren wrote:

What is our recommendation for tagging the access roads entering or
leaving motorway service(s) areas ?


No consensus. Keepright accepts either.

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Re: [Tagging] Feature Proposal - RFC - bike safety

2011-09-28 Thread Richard Fairhurst
Toby Murray wrote:
 The argument that more hard-core riders can't judge the 
 bicycle friendliness of a road is ridiculous. Any bicycle 
 friendliness tags will obviously be targeted at average 
 commuting cyclists.

It might seem obvious to you, but something else seems obvious to me!
And that's the rub.

The issue isn't that hard-core riders are unable to see things from the
point of view of average commuting cyclists. It's that no two people, no
matter their level of expertise, agree on what is friendly.

Here in the UK, the debate is polarised between those who believe roads are
naturally bike-friendly (traditionally the CTC, many local cycle campaigns,
commentators such as John Franklin) and those who believe roads are not
naturally bike-friendly and targeted infrastructure is needed (Sustrans,
some newer local cycle campaigns, the Cycle Embassy of Great Britain).

There is absolutely no way you are going to get the two to agree on which
road is bike-friendly and which isn't, nor on the criteria for how
bike-friendliness is measured. FWIW, I'm very much of the second opinion,
and I know a mapper 15 miles down the road who's very much of the first: so
I can't see how it would work on OSM within my locality, let alone globally.

(I'm not even sure how you define average commuting cyclist. I'm faster
uphill than my wife, and slower than her on the flat. Which of us is
average? Do you tag a road with a steepish gradient for me, or for her?)

 The fact that *I* ride along a road regularly in padded 
 lycra shorts

I'm a pretty hard-core cyclist. I've never worn lycra in my life. Like I
say, no two cyclists have the same opinions. :)

 And yes, it would be nice to have every minute detail of a road 
 tagged in OSM. But let's be realistic here.

Objective tagging does not have to be user-hostile. Quite the opposite.

Firstly, objective facts are much easier to record. Take Wikipedia. The
learning curve for Wikipedia is incredibly steep, because you have so much
knowledge to learn before you can make a significant contribution - so many
rules (the WP:ABCD type of thing), so many templates, so much markup.

By contrast, simple OSM tagging requires much less prior knowledge. You want
to tag a 30kph limit, you just click the way and enter 30 into the speed
limit box. It's a simple objective fact. You don't have to read up on
policies and guidelines before tagging. Obscure multi-factor scales don't
work like that: you have to read up on the criteria, then do a whole bunch
of thinking as to what value the way merits, then someone else disagrees
with your reasoning, tags it differently, and you end up with an edit war.
Sounds like Wikipedia? It does to me.

Secondly, you can structure the tags in easily comprehensible ways.
Vehicles per day is a really difficult number to get a handle on. A
traffic=1500vpd tag is never going to catch on, unless by import. But
vehicles per minute is much simpler. Anyone can say whether, on average,
there's more or less than one car per minute outside their front door. But
it's just as useful - it so happens that 1 vehicle per minute actually
equates to a very commonly used measure of road quietness anyway... :)

And thirdly, editors can and do abstract away a lot of the burden of
tagging. One of the things I've noticed with Potlatch 2 is that,
increasingly, people on help.osm.org say I want to tag a random obscure
thing; someone replies with use the tag thing=obscure; and the original
questioner comes back saying er, how do I do that?. The Advanced panel is
unknown to new users, and that's absolutely how it should be; because we've
made it easy to tag the majority of things.

Saying users can't cope with adding all these details rather assumes that
the OSM community isn't smart enough to build tools to make it easy, and I
can assure you we are.

cheers
Richard



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Re: [Tagging] Feature Proposal - RFC - bike safety

2011-09-28 Thread Richard Fairhurst
Pieren wrote:
 Then we can delete the keys smoothness , sac_scale, mtb:scale
 and tracktype. But, oh no, they seem to be widely used.

YMMV. I've never seen the first three in the wild in the UK. tracktype was
once popular but is largely being supplanted by objective use of the
surface= tag.

 We just need a clear definition with objective facts for each value.

Or better still, just tag the objective facts.

cheers
Richard



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Re: [Tagging] rest_area and service road

2011-09-28 Thread Andrew Errington
On Thu, September 29, 2011 04:08, Nathan Edgars II wrote:
 On 9/28/2011 3:04 PM, Pieren wrote:

 What is our recommendation for tagging the access roads entering or
 leaving motorway service(s) areas ?

 No consensus. Keepright accepts either.


I generally use motorway_link because motorway 'rules' apply on the slip
road.

Best wishes,

Andrew


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Re: [Tagging] rest_area and service road

2011-09-28 Thread James Mast

 Date: Thu, 29 Sep 2011 08:10:43 +0900
 From: a.erring...@lancaster.ac.uk
 To: tagging@openstreetmap.org
 Subject: Re: [Tagging] rest_area and service road
 
 On Thu, September 29, 2011 04:08, Nathan Edgars II wrote:
  On 9/28/2011 3:04 PM, Pieren wrote:
 
  What is our recommendation for tagging the access roads entering or
  leaving motorway service(s) areas ?
 
  No consensus. Keepright accepts either.
 
 
 I generally use motorway_link because motorway 'rules' apply on the slip
 road.
 
 Best wishes,
 
 Andrew
 
 
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This is what I do as well.  I consider them as motorway_link's till they 
either the ramp splits for trucks and cars OR the parking lane starts (when it 
isn't a split rest area). -- James  ___
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