Re: [OSM-talk] OSM cycle map - ?excessive focus on long-distance routes

2012-05-10 Thread Richard Mann
On Wed, May 9, 2012 at 3:09 PM, Richard Fairhurst rich...@systemed.netwrote:

 But as yet I haven't understood what point you're trying to make in this
 thread. Without trying to be obtuse... can you explain?

 cheers
 Richard

That there are legitimate ways of classifying cycle routes other than for
touristic purposes (and it's not just me; it seems to be a known, if
unresolved, distinction in Utrecht).

OSM tagging of cycle routes seems dominated by the touristic approach, and
this limits the usefulness of the data if you're more interested in utility
cycling.

Looking at the Dutch guidance, they define a main cycle route as one that
has more than 2000 cyclists per day (other countries might settle for a
lower threshold!). These account for about 20% of the lanes/tracks, but
about 80% of the distance cycled. At that sort of volume, signposting is a
bit irrelevant; it's more down to observing the dominant flows of cyclists
(typically reinforced by above-average facilities, though not always). In
an ideal world, you'd do proper counts and derive the data from bottom up,
but given that it's usually pretty obvious, I think a certain amount of
duck-tagging is appropriate.
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Re: [OSM-talk] OSM cycle map - ?excessive focus on long-distance routes

2012-05-10 Thread Andy Robinson
But why does this need special treatment? We don't do it for any other mode
of transport.

 

Cheers

Andy

 

From: Richard Mann [mailto:richard.mann.westoxf...@gmail.com] 
Sent: 10 May 2012 10:08
To: Richard Fairhurst
Cc: talk@openstreetmap.org
Subject: Re: [OSM-talk] OSM cycle map - ?excessive focus on long-distance
routes

 

On Wed, May 9, 2012 at 3:09 PM, Richard Fairhurst rich...@systemed.net
wrote:

But as yet I haven't understood what point you're trying to make in this
thread. Without trying to be obtuse... can you explain?

cheers
Richard

That there are legitimate ways of classifying cycle routes other than for
touristic purposes (and it's not just me; it seems to be a known, if
unresolved, distinction in Utrecht). 

 

OSM tagging of cycle routes seems dominated by the touristic approach, and
this limits the usefulness of the data if you're more interested in utility
cycling.

 

Looking at the Dutch guidance, they define a main cycle route as one that
has more than 2000 cyclists per day (other countries might settle for a
lower threshold!). These account for about 20% of the lanes/tracks, but
about 80% of the distance cycled. At that sort of volume, signposting is a
bit irrelevant; it's more down to observing the dominant flows of cyclists
(typically reinforced by above-average facilities, though not always). In an
ideal world, you'd do proper counts and derive the data from bottom up, but
given that it's usually pretty obvious, I think a certain amount of
duck-tagging is appropriate.

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Re: [OSM-talk] OSM cycle map - ?excessive focus on long-distance routes

2012-05-10 Thread Richard Mann
We do it for motorised vehicles.

On Thu, May 10, 2012 at 11:21 AM, Andy Robinson ajrli...@gmail.com wrote:

 But why does this need special treatment? We don’t do it for any other
 mode of transport.

 ** **

 Cheers

 Andy

 ** **

 *From:* Richard Mann [mailto:richard.mann.westoxf...@gmail.com]
 *Sent:* 10 May 2012 10:08
 *To:* Richard Fairhurst
 *Cc:* talk@openstreetmap.org
 *Subject:* Re: [OSM-talk] OSM cycle map - ?excessive focus on
 long-distance routes

 ** **

 On Wed, May 9, 2012 at 3:09 PM, Richard Fairhurst rich...@systemed.net
 wrote:

 But as yet I haven't understood what point you're trying to make in this
 thread. Without trying to be obtuse... can you explain?

 cheers
 Richard

 That there are legitimate ways of classifying cycle routes other than for
 touristic purposes (and it's not just me; it seems to be a known, if
 unresolved, distinction in Utrecht). 

  

 OSM tagging of cycle routes seems dominated by the touristic approach, and
 this limits the usefulness of the data if you're more interested in utility
 cycling.

  

 Looking at the Dutch guidance, they define a main cycle route as one that
 has more than 2000 cyclists per day (other countries might settle for a
 lower threshold!). These account for about 20% of the lanes/tracks, but
 about 80% of the distance cycled. At that sort of volume, signposting is a
 bit irrelevant; it's more down to observing the dominant flows of cyclists
 (typically reinforced by above-average facilities, though not always). In
 an ideal world, you'd do proper counts and derive the data from bottom up,
 but given that it's usually pretty obvious, I think a certain amount of
 duck-tagging is appropriate.

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Re: [OSM-talk] OSM cycle map - ?excessive focus on long-distance routes

2012-05-10 Thread Cartinus
On 05/10/2012 11:08 AM, Richard Mann wrote:
 On Wed, May 9, 2012 at 3:09 PM, Richard Fairhurst rich...@systemed.netwrote:
 
 But as yet I haven't understood what point you're trying to make in this
 thread. Without trying to be obtuse... can you explain?

 cheers
 Richard

 That there are legitimate ways of classifying cycle routes other than for
 touristic purposes (and it's not just me; it seems to be a known, if
 unresolved, distinction in Utrecht).

Again: The lines on the map of the city of Utrecht are not routes at all.

They are roughly the ways busiest with cyclist radiating out of the
central railway station. Even for it's purpose it is fairly useless,
since it misses all the important tangential routes.

There are similar maps made by the city of Utrecht for car traffic. As
usual the holy cow of western society (the car) gets more attention and
these maps have move detail (like traffic in tangential directions and
neighbourhood feeders). The local mappers used these as a rough
guideline for which roads to map as primary, secondary and tertiary.

That is the normal flow of information. You can use the (overly)
generalized maps made for policy making to selectively add information
to OSM, but making these style of maps always requires human editors of
the map (not just of the map data).

---
m.v.g.,
Cartinus

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Re: [OSM-talk] OSM cycle map - ?excessive focus on long-distance routes

2012-05-10 Thread Steve Doerr

On 10/05/2012 13:02, Cartinus wrote:

the holy cow of western society (the car)


You mean the means of locomotion which has been chosen by the majority 
given freedom of choice?


--
Steve

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Re: [OSM-talk] OSM cycle map - ?excessive focus on long-distance routes

2012-05-10 Thread Cartinus
On 05/10/2012 02:15 PM, Steve Doerr wrote:
 given freedom of choice?

This is getting way off-topic, but...

I know it is hard to accept for a lot of people, but the more people you
put in a smaller space the less freedom of choice you have. For an
example you might understand given your previous reaction: Look at how
many people living on Manhattan (NY) own a car.


---
m.v.g.,
Cartinus

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Re: [OSM-talk] OSM cycle map - ?excessive focus on long-distance routes

2012-05-10 Thread Steve Doerr

On 10/05/2012 13:41, Cartinus wrote:

On 05/10/2012 02:15 PM, Steve Doerr wrote:

given freedom of choice?

This is getting way off-topic, but...

I know it is hard to accept for a lot of people, but the more people you
put in a smaller space the less freedom of choice you have. For an
example you might understand given your previous reaction: Look at how
many people living on Manhattan (NY) own a car.



Nope, no idea what you're getting at here.

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Re: [OSM-talk] OSM cycle map - ?excessive focus on long-distance routes

2012-05-09 Thread Richard Mann
My point is that tagging should allow both types of routes to be recorded,
so different renderings can be produced for different purposes (and indeed
routers can use the information as well, if they want to).

I know that different route networks apply for different purposes in my
city (and have tagged and rendered accordingly); I just thought it
interesting to note that that difference was also regarded as obvious in a
major Dutch city.

Richard
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Re: [OSM-talk] OSM cycle map - ?excessive focus on long-distance routes

2012-05-09 Thread Maarten Deen

On 2012-05-09 14:11, Richard Mann wrote:

My point is that tagging should allow both types of routes to be
recorded, so different renderings can be produced for different
purposes (and indeed routers can use the information as well, if they
want to).

I know that different route networks apply for different purposes in
my city (and have tagged and rendered accordingly); I just thought it
interesting to note that that difference was also regarded as obvious
in a major Dutch city.


I think the lines on [1] are merely a guideline for cyclists what the 
recommended route from the suburbs to the city center is. If they are 
signposted then only by official roadsigns (like these here [2]) but 
these are not cycleroutes, just as destinations for cars on roadsigns 
are not carroutes.


On the OCM there are different things highlighted.
- in blue dashed lines: cycleways (highway=cycleway)
- in red (solid on zoom = 12, opaque on zoom  12): national (leisure) 
cycleroutes

- in light blue: regional cycleroutes
- in dark blue: local cycleroutes
These are described on [3] and have specific signposts showing the 
route and intermediate points.


[1] 
http://bicycledutch.wordpress.com/2012/04/23/looking-down-on-cyclists/

[2] http://www.alleplaatsenopdefiets.nl/images/wegwijzer.jpg
[3] 
http://wiki.openstreetmap.org/wiki/WikiProject_Nederlandse_Fietsroutes


Regards,
Maarten

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Re: [OSM-talk] OSM cycle map - ?excessive focus on long-distance routes

2012-05-09 Thread Richard Fairhurst
Richard Mann wrote:
 My point is that tagging should allow both types of routes to be 
 recorded

We tag what's on the ground, whether it's route signage, cycle-specific
infrastructure, or a giant woolly mammoth (http://url.ie/f9ts).

Are you suggesting a deviation from that?

cheers
Richard



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Re: [OSM-talk] OSM cycle map - ?excessive focus on long-distance routes

2012-05-09 Thread Richard Mann
You'd have to ask the City of Utrecht whether their main cycle routes are
signed. If they've officially identified a particular set of routes, that
would seem to be fairly clear-cut. See their city website:
http://www.utrecht.nl/images/dso/infraprojecten/fiets/fietsroutes.html

Richard



On Wed, May 9, 2012 at 2:34 PM, Richard Fairhurst rich...@systemed.netwrote:

 Richard Mann wrote:
  My point is that tagging should allow both types of routes to be
  recorded

 We tag what's on the ground, whether it's route signage, cycle-specific
 infrastructure, or a giant woolly mammoth (http://url.ie/f9ts).

 Are you suggesting a deviation from that?

 cheers
 Richard



 --
 View this message in context:
 http://gis.19327.n5.nabble.com/OSM-cycle-map-excessive-focus-on-long-distance-routes-tp5697183p5697391.html
 Sent from the General Discussion mailing list archive at Nabble.com.

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Re: [OSM-talk] OSM cycle map - ?excessive focus on long-distance routes

2012-05-09 Thread Richard Fairhurst
Richard Mann wrote:
 You'd have to ask the City of Utrecht whether their main cycle routes
 are signed.

Well, ok, I wasn't really asking what I'd have to ask, more what your
point is. :)

If the routes are signed, that's good. If there are measurements that can
be tagged in OSM (vehicles per hour, or surface quality, or whatever),
that's good too. Anything objective can be tagged, and rendered by a
Maperitive guru such as yourself. openwoollymammothmap.org is still there
for the taking.

But as yet I haven't understood what point you're trying to make in this
thread. Without trying to be obtuse... can you explain?

cheers
Richard




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Re: [OSM-talk] OSM cycle map - ?excessive focus on long-distance routes

2012-05-09 Thread Paul Johnson
On May 9, 2012 11:27 AM, Cartinus carti...@xs4all.nl wrote:

 On 05/09/2012 10:54 AM, Richard Mann wrote:
  Obviously, OCM can render what it likes, but I think this neatly
  illustrates that OSM tagging of cycle routes is missing a trick or two.

 The first map in your mail is the kind of map civil servants use in
 their policy documents. In other words completely useless to anybody in
 their daily lives.

 OCM shows what's really important:
 * The dotted blue lines are all the cycleways.
 * The rest of the blue stuff is where people cycle recreationally.

The dotted blue lines are often designated paths.  The rest of the blue
stuff is often primarily transportation oriented.
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