Re: [Talk-ca] Gouvernement ouvert , Gatineau

2013-02-02 Thread Richard Weait
I agree that advocacy with all levels of government is important.  They
seem in general to be interested, and to listen politely, but often to not
understand that creating a new license is poison to open data.  So it is
important to keep talking with them, more and more of them, until they
comprehend.  Data law is relatively new, in terms of law.  Data law is
applied unevenly by countries.  The very nature of data demands mixing
with other data sets.  This means that explicit and careful drafting of a
license is required so that it will work everywhere without accidentally
discriminating against a potential user.

I disagree that ODbL is the right license for municipalities or other
governments.

ODbL is absolutely the right license for OSMF and the OSM community. OSMF
must serve the OSM community of mappers, and the share alike provision is
important to a substantial portion of the mapping community.  ODbL
deliberately discriminates against those who would take ODbL data, improve
it, and not share the improvements.  That is an important and deliberate
feature of the ODbL license

Governments must serve all of their citizens, even those who would not
choose to share.  The ODbL share alike provision is not suitable for
government publishers who mush serve both their sharing and non-sharing
constituents.  I recommend that governments publish their open data under
ODC PDDL.  PDDL allows use, not just in OSM, but in any open data project.
PDDL allows use, not just in open data projects, but in closed commercial
projects that chose not to share at all.  PDDL allows use in all
jurisdictions with established data law, but also in jurisdictions where
data law is not recognized and copyright law is used to fill the gaps.

Governments must serve a broader audience than the OSMF must serve.
OpenDataCommons recognize that one Open Data license is not sufficient, and
have drafted a suite of licenses.  Their licenses are drafted to be
compatible, so that PDDL data can be included in ODbL data sets.

Advocating that governments publish open data under PDDL _should_ be easier
than advocating for ODbL because publishing under PDDL is good for OSM, but
also good for any other potential use of the data.  So, those advocates
should be seen as not simply advocating something for the benefit of their
own pet project, OSM, but for the benefit of all potential open data
users.  To advocate that governments support only one specific open data
project, even a project as wonderful as OpenStreetMap, could be seen as
mere self-interest, rather than enlightened advocacy.

Best regards,
Richard

[1] ODC - OpenDataCommons.org - the same publisher of the ODbL license.
[2] PDDL - Public Domain Dedication and License
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Re: [Talk-ca] Sidewalks

2013-02-02 Thread Richard Weait
On Fri, Feb 1, 2013 at 4:08 PM, nicholas ingalls nicholas.inga...@gmail.com
 wrote:

 My personal preference is to enable the JOSM sidewalk style and then use
 the sidewalk:right sidewalk:left, sidewalk:both, or sidewalk:none tags on
 the actual street. The footpaths are just about useless (as in the example
 above) as they are not related to the street in anyway. So the routing
 engine couldn't say turn left onto Maple Street. It could only  say turn
 left. If the tags are on the actual street and not separately mapped, it is
 much easier for a routing engine.


I think Bernie has raised an interesting question with a complicated group
of replies.  I don't think that we will find One Universally True Answer.

As a mapper, I don't always add ordinary sidewalks where I see them.
Initially, I thought, I have roads and other things to map, I'll worry
about sidewalks later.  It was the early days of OSM.  Available aerial
imagery was much more limited and much lower resolution.  When higher
resolution aerial imagery became available to us, I had a bit of a freak
out.  Oh my!!! Look at all the PIXELS!!!  I can map sidewalks, and, and,
and, and, everything!!!  And so I did.  I added sidewalks in some of the
places that already had roads and schools and parks and rivers, etc.

Now, I'm not as consistent, I guess.  I'll add interesting walkways that
aren't simply parallel to a street.  I think adding a pedestrian path
between neighbourhoods, and adjacent, non-adjoining streets is worthwhile.
As a pedestrian, I use those paths to cut the walking distance to the
store, or school.  But I generally don't add the ordinary sidewalks.
Except when I do add them.

The points raised by Gordon and Harald, above, are important.  There are
routing services for pedestrians and cyclists and they can use
separately-drawn sidewalks in ways that they can not extract data from road
centerline parameters.  I make an effort to properly connect new objects
that I map with existing sidewalks, even if I'm not planning to map more
sidewalks immediately.
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Re: [Talk-ca] Gouvernement ouvert , Gatineau

2013-02-02 Thread Pierre Béland
Thanks Richard, 

I better understand the difference between the two licenses.


 
Pierre 




 De : Richard Weait rich...@weait.com
À : Talk-CA OpenStreetMap talk-ca@openstreetmap.org 
Envoyé le : Samedi 2 février 2013 4h26
Objet : Re: [Talk-ca] Gouvernement ouvert , Gatineau
 

I agree that advocacy with all levels of government is important.  They seem 
in general to be interested, and to listen politely, but often to not 
understand that creating a new license is poison to open data.  So it is 
important to keep talking with them, more and more of them, until they 
comprehend.  Data law is relatively new, in terms of law.  Data law is 
applied unevenly by countries.  The very nature of data demands mixing with 
other data sets.  This means that explicit and careful drafting of a license 
is required so that it will work everywhere without accidentally 
discriminating against a potential user.  



I disagree that ODbL is the right license for municipalities or other 
governments.  


ODbL is absolutely the right license for OSMF and the OSM community. OSMF must 
serve the OSM community of mappers, and the share alike provision is important 
to a substantial portion of the mapping community.  ODbL deliberately 
discriminates against those who would take ODbL data, improve it, and not 
share the improvements.  That is an important and deliberate feature of the 
ODbL license


Governments must serve all of their citizens, even those who would not choose 
to share.  The ODbL share alike provision is not suitable for government 
publishers who mush serve both their sharing and non-sharing constituents.  I 
recommend that governments publish their open data under ODC PDDL.  PDDL 
allows use, not just in OSM, but in any open data project.  PDDL allows use, 
not just in open data projects, but in closed commercial projects that chose 
not to share at all.  PDDL allows use in all jurisdictions with established 
data law, but also in jurisdictions where data law is not recognized and 
copyright law is used to fill the gaps.  


Governments must serve a broader audience than the OSMF must serve.  
OpenDataCommons recognize that one Open Data license is not sufficient, and 
have drafted a suite of licenses.  Their licenses are drafted to be 
compatible, so that PDDL data can be included in ODbL data sets.



Advocating that governments publish open data under PDDL _should_ be easier 
than advocating for ODbL because publishing under PDDL is good for OSM, but 
also good for any other potential use of the data.  So, those advocates should 
be seen as not simply advocating something for the benefit of their own pet 
project, OSM, but for the benefit of all potential open data users.  To 
advocate that governments support only one specific open data project, even a 
project as wonderful as OpenStreetMap, could be seen as mere self-interest, 
rather than enlightened advocacy.  


Best regards,
Richard



[1] ODC - OpenDataCommons.org - the same publisher of the ODbL license.  

[2] PDDL - Public Domain Dedication and License

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Re: [Talk-ca] Sidewalks

2013-02-02 Thread Daniel Begin
Bonjour  all

To add my comments on this topic, I never add ordinary sidewalks except if
they are physically separated from the street (not adjacent to). If I had
to map them, I would use sidewalk:* tags.

I still think as Richard wrote: I have roads and other things to map; I'll
worry about sidewalks later. However, having this sidewalk wonderings only
means is that the map is really getting detailed!

 

Cheers,

Daniel

 

From: Richard Weait [mailto:rich...@weait.com] 
Sent: February-02-13 06:15
To: Talk-CA OpenStreetMap
Subject: Re: [Talk-ca] Sidewalks

 

On Fri, Feb 1, 2013 at 4:08 PM, nicholas ingalls
nicholas.inga...@gmail.com wrote:

My personal preference is to enable the JOSM sidewalk style and then use the
sidewalk:right sidewalk:left, sidewalk:both, or sidewalk:none tags on the
actual street. The footpaths are just about useless (as in the example
above) as they are not related to the street in anyway. So the routing
engine couldn't say turn left onto Maple Street. It could only  say turn
left. If the tags are on the actual street and not separately mapped, it is
much easier for a routing engine.

 

I think Bernie has raised an interesting question with a complicated group
of replies.  I don't think that we will find One Universally True Answer.  

As a mapper, I don't always add ordinary sidewalks where I see them.
Initially, I thought, I have roads and other things to map, I'll worry
about sidewalks later.  It was the early days of OSM.  Available aerial
imagery was much more limited and much lower resolution.  When higher
resolution aerial imagery became available to us, I had a bit of a freak
out.  Oh my!!! Look at all the PIXELS!!!  I can map sidewalks, and, and,
and, and, everything!!!  And so I did.  I added sidewalks in some of the
places that already had roads and schools and parks and rivers, etc.  

Now, I'm not as consistent, I guess.  I'll add interesting walkways that
aren't simply parallel to a street.  I think adding a pedestrian path
between neighbourhoods, and adjacent, non-adjoining streets is worthwhile.
As a pedestrian, I use those paths to cut the walking distance to the store,
or school.  But I generally don't add the ordinary sidewalks.  Except when I
do add them.  

The points raised by Gordon and Harald, above, are important.  There are
routing services for pedestrians and cyclists and they can use
separately-drawn sidewalks in ways that they can not extract data from road
centerline parameters.  I make an effort to properly connect new objects
that I map with existing sidewalks, even if I'm not planning to map more
sidewalks immediately.  

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