Re: [Talk-GB] Somerset Levels Flooding

2014-02-19 Thread Dave F.

FYI

http://earthobservatory.nasa.gov/IOTD/view.php?id=83157src=eoa-iotd

On 06/02/2014 00:24, Dave F. wrote:

Hi

About a week ago user Jestr88 added large areas tagged natural=water; 
name=flooding. to indicate the flooded areas on the Somerset levels.


http://www.openstreetmap.org/way/258412163

Apart from the inaccuracy of these (water levels vary hourly) I 
thought temporary information was frowned upon. I think they should be 
removed or am I missing something?


Dave F.

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Re: [Talk-GB] Somerset Levels Flooding

2014-02-07 Thread Andy Allan
On 7 February 2014 12:37, John Baker rovas...@hotmail.com wrote:
 Always to play the devils advocate.

 We have all heard about mapping for the renderer but are you mapping for
 the third party data providers that is slow at updating the planet data.

Define slow for a printed atlas? Should we be pulping them each
minute? Day? Week?

 I think we all have different opinions on this (it will likely take months
 for the work to be done at least 6 weeks was the latest I heard this
 morning) and don't we pride ourselves about having the most up-to-date
 information and what is on the ground?!

There's a difference between providing up-to-date data, and being
unnecessarily misleading. For example, there's a section of the A82 on
Loch Lomond that was only one lane wide, and controlled by traffic
lights. It was marked as two-way, but at any one instant it is, of
course, one-way. Should we have marked it as one-way and flipped the
direction every 90 seconds? Of course not. Should remove a railway
line when it's closed for overnight engineering works? Is a field
flooded for a week now a lake?

 Permanent versus temporary is very subjective and people will have different
 opinions.

As with anything. But I suspect that a sensible group of people will
come to a sensible answer in every case. In the two at hand, the
railway is still a railway, and the Levels are fields, not lakes.

Unless, of course, there are people who are deliberately looking for
an argument...

Cheers,
Andy

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Re: [Talk-GB] Somerset Levels Flooding

2014-02-07 Thread John Aldridge

On 07/02/2014 12:37, John Baker wrote:

Always to play the devils advocate.
We have all heard about mapping for the renderer but are you mapping
for the third party data providers that is slow at updating the planet
data. They should use the data correctly. It is annoying the stale
content that some devs/providers provide, maybe it would encourage them
to put some effort into updating the content for frequently.


Something along the lines of

  http://wiki.openstreetmap.org/wiki/Proposed_features/temporary

would help, though I think it would benefit from some way of specifying 
that the start  end dates are estimates only.


That proposal seems to be languishing, though.

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Cheers,
John

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Re: [Talk-GB] Somerset Levels Flooding

2014-02-07 Thread John Baker
 Define slow for a printed atlas? Should we be pulping them each
 minute? Day? Week?
Printed atlas!? So insensitive I carry a globe around.
I wonder however what about the providers that do want update their data, say, 
daily are at a disadvantage if we don't mark these cases.
Hence why I suggested maybe a month or so in this broken state maybe we should 
edit. These parameters will vary between mappers but a threshold maybe we could 
agree open here. Maybe some still consider estimated 1 year bridge closures is 
not long enough to consider updating the map.
Also maybe it should have more weight to the mapper local to the area (hence 
your Putney example).  And/or how quick it will be monitored and 
updated.*Shrug* 

 Unless, of course, there are people who are deliberately looking for an 
 argument...
 
;-)

 Date: Fri, 7 Feb 2014 12:52:16 +
 Subject: Re: [Talk-GB] Somerset Levels Flooding
 From: gravityst...@gmail.com
 To: rovas...@hotmail.com
 CC: l...@lorp.org; talk-gb@openstreetmap.org
 
 On 7 February 2014 12:37, John Baker rovas...@hotmail.com wrote:
  Always to play the devils advocate.
 
  We have all heard about mapping for the renderer but are you mapping for
  the third party data providers that is slow at updating the planet data.
 
 Define slow for a printed atlas? Should we be pulping them each
 minute? Day? Week?
 
  I think we all have different opinions on this (it will likely take months
  for the work to be done at least 6 weeks was the latest I heard this
  morning) and don't we pride ourselves about having the most up-to-date
  information and what is on the ground?!
 
 There's a difference between providing up-to-date data, and being
 unnecessarily misleading. For example, there's a section of the A82 on
 Loch Lomond that was only one lane wide, and controlled by traffic
 lights. It was marked as two-way, but at any one instant it is, of
 course, one-way. Should we have marked it as one-way and flipped the
 direction every 90 seconds? Of course not. Should remove a railway
 line when it's closed for overnight engineering works? Is a field
 flooded for a week now a lake?
 
  Permanent versus temporary is very subjective and people will have different
  opinions.
 
 As with anything. But I suspect that a sensible group of people will
 come to a sensible answer in every case. In the two at hand, the
 railway is still a railway, and the Levels are fields, not lakes.
 
 Unless, of course, there are people who are deliberately looking for
 an argument...
 
 Cheers,
 Andy
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Re: [Talk-GB] Somerset Levels Flooding

2014-02-06 Thread Dan S
Hi -

I do add temporary things such as road closures, construction sites.
Generally only if it will be there for a while, e.g. a month or
more. I agree with Brian's perspective.

Dan


2014-02-06 Brian Savidge a_sn...@hotmail.com:
 I thought temporary information like closures of paths and roads were good
 to put on the map, if nothing else to allow routing to avoid them.

 The water I agree is likely to be a bit inaccurate and isn't going to help
 with the routing, but like a road, those areas will be wet for quite some
 time (weeks to months), so as long as the person doing it keeps it
 relatively up to date, I guess there is no real problem.  The real problem
 comes when its not maintained.

 Date: Thu, 6 Feb 2014 00:24:31 +
 From: dave...@madasafish.com
 To: talk-GB@openstreetmap.org
 Subject: [Talk-GB] Somerset Levels Flooding


 Hi

 About a week ago user Jestr88 added large areas tagged natural=water;
 name=flooding. to indicate the flooded areas on the Somerset levels.

 http://www.openstreetmap.org/way/258412163

 Apart from the inaccuracy of these (water levels vary hourly) I thought
 temporary information was frowned upon. I think they should be removed
 or am I missing something?

 Dave F.

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Re: [Talk-GB] Somerset Levels Flooding

2014-02-06 Thread David Earl
I think it would be useful to have a means of indicating road closures etc 
which are different from simply pretending the road doesn't exist or doesn't 
allow certain users for a while. This would allow renderers to mark closures 
rather than just gaps or not visible at all, so people see there is a problem; 
so that user types can be indicated (sometimes bikes can get through a closure, 
but not cars, or cars but not trucks); and so that (perhaps estimated) end 
dates can be given so that the restriction can be ignored when the closure 
didn't get removed - they are easily forgotten. Routers too could say 'I would 
have taken you this way, but it is closed when you want to travel' I was 
surprised someone hasn't already removed a section of railway at Dawlish 
yesterday! But it would be much better IMO if the railway remained, but marked 
as closed so the map could show, eg, a big red X at that point to illustrate an 
anomaly, rather than a short gap not really visible at all but the largest 
scales,  David



Hi -



I do add temporary things such as road closures, construction sites.

Generally only if it will be there for a while, e.g. a month or

more. I agree with Brian's perspective.



Dan





2014-02-06 Brian Savidge a_sn...@hotmail.com:

 I thought temporary information like closures of paths and roads were good

 to put on the map, if nothing else to allow routing to avoid them.



 The water I agree is likely to be a bit inaccurate and isn't going to help

 with the routing, but like a road, those areas will be wet for quite some

 time (weeks to months), so as long as the person doing it keeps it

 relatively up to date, I guess there is no real problem.  The real problem

 comes when its not maintained.



 Date: Thu, 6 Feb 2014 00:24:31 +

 From: dave...@madasafish.com

 To: talk-GB@openstreetmap.org

 Subject: [Talk-GB] Somerset Levels Flooding





 Hi



 About a week ago user Jestr88 added large areas tagged natural=water;

 name=flooding. to indicate the flooded areas on the Somerset levels.



 http://www.openstreetmap.org/way/258412163



 Apart from the inaccuracy of these (water levels vary hourly) I thought

 temporary information was frowned upon. I think they should be removed

 or am I missing something?



 Dave F.



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 protection is active.

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Re: [Talk-GB] Somerset Levels Flooding

2014-02-06 Thread Brian Savidge
How about having theKey:  accessandValue:  no
or possibly Value: delivery or customers if its roads.  If you wanted it to 
showup on the map as red, setting the Value to 'private' as in keep out its a 
building site would work.

Date: Thu, 6 Feb 2014 09:43:55 +
From: da...@frankieandshadow.com
To: danstowell+...@gmail.com
CC: talk-gb@openstreetmap.org
Subject: Re: [Talk-GB] Somerset Levels Flooding

I think it would be useful to have a means of indicating road closures etc 
which are different from simply pretending the road doesn't exist or doesn't 
allow certain users for a while. This would allow renderers to mark closures 
rather than just gaps or not visible at all, so people see there is a problem; 
so that user types can be indicated (sometimes bikes can get through a closure, 
but not cars, or cars but not trucks); and so that (perhaps estimated) end 
dates can be given so that the restriction can be ignored when the closure 
didn't get removed - they are easily forgotten. Routers too could say 'I would 
have taken you this way, but it is closed when you want to travel'
I was surprised someone hasn't already removed a section of railway at Dawlish 
yesterday! But it would be much better IMO if the railway remained, but marked 
as closed so the map could show, eg, a big red X at that point to illustrate an 
anomaly, rather than a short gap not really visible at all but the largest 
scales,
David

On 6 February 2014 08:40:22 GMT, Dan S  wrote:
Hi -

I do add temporary things such as road closures, construction sites.
Generally only if it will be there for a while, e.g. a month or
more. I agree with Brian's perspective.

Dan


2014-02-06 Brian Savidge :
 I thought temporary information like closures of paths and roads were good
 to put on the map, if nothing else to allow routing to avoid them.

 The water I agree is likely to be a bit inaccurate and isn't going to help
 with the routing, but like a road, those areas will be wet for quite some
 time (weeks to months), so as long as the person doing it keeps it
 relatively up to date, I guess there is no real problem.  The real problem
 comes when its not maintained.

 Date: Thu, 6 Feb 2014 00:24:31 +
 From: dave...@madasafish.com
 To: talk-GB@openstreetmap.org
 Subject: [Talk-GB] Somerset Levels Flooding


 Hi

 About a week ago user Jestr88 added large areas tagged natural=water;
 name=flooding. to indicate the flooded areas on the Somerset levels.

 http://www.openstreetmap.org/way/258412163

 Apart from the inaccuracy of these (water levels vary hourly) I thought
 temporary information was frowned upon. I think they should be removed
 or am I missing something?

 Dave F.

 ---
 This email is free from viruses and malware because avast! Antivirus
 protection is active.
 http://www.avast.com


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Re: [Talk-GB] Somerset Levels Flooding

2014-02-06 Thread Laurence Penney
Indeed this is surely the right approach. Many people use OSM inside products 
where the map data is updated rarely: all the offline map apps for mobile come 
to mind. Temporary states have no place in these apps, and it’s unfair on their 
devs to force them to work out a long-term state to offer their users.

- L

 On 6 Feb 2014, at 14:36, Andy Allan gravityst...@gmail.com wrote:
 
 On 6 February 2014 09:43, David Earl da...@frankieandshadow.com wrote:
 I think it would be useful to have a means of indicating road closures etc
 which are different from simply pretending the road doesn't exist or doesn't
 allow certain users for a while.
 
 I work on the principle of marking the permanent state of features,
 as much as possible. Obviously everything changes, but if a situation
 is deliberately temporary (e.g. a road closed for crane operations, or
 for a fortnight for digging, etc) then I don't change the 'permanent
 state' of the feature. We had a trunk road in Putney that was one-way
 for three months, but I didn't change the map to correspond since it
 was clearly not permanent. And I'd encourage people not to mark
 flooding as natural=water, or removing bits of railway when they are
 certainly going to repair it, or even adding access=no tags to
 something that might be fixed by the weekend.
 
 If it's deemed important by people to mark the temporary state
 somehow, then please use a separate tagging system.
 
 Cheers,
 Andy
 
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[Talk-GB] Somerset Levels Flooding

2014-02-05 Thread Dave F.

Hi

About a week ago user Jestr88 added large areas tagged natural=water; 
name=flooding. to indicate the flooded areas on the Somerset levels.


http://www.openstreetmap.org/way/258412163

Apart from the inaccuracy of these (water levels vary hourly) I thought 
temporary information was frowned upon. I think they should be removed 
or am I missing something?


Dave F.

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Re: [Talk-GB] Somerset Levels Flooding

2014-02-05 Thread Brian Savidge
I thought temporary information like closures of paths and roads were good to 
put on the map, if nothing else to allow routing to avoid them.
 
The water I agree is likely to be a bit inaccurate and isn't going to help with 
the routing, but like a road, those areas will be wet for quite some time 
(weeks to months), so as long as the person doing it keeps it relatively up to 
date, I guess there is no real problem.  The real problem comes when its not 
maintained.
 
 Date: Thu, 6 Feb 2014 00:24:31 +
 From: dave...@madasafish.com
 To: talk-GB@openstreetmap.org
 Subject: [Talk-GB] Somerset Levels Flooding
 
 Hi
 
 About a week ago user Jestr88 added large areas tagged natural=water; 
 name=flooding. to indicate the flooded areas on the Somerset levels.
 
 http://www.openstreetmap.org/way/258412163
 
 Apart from the inaccuracy of these (water levels vary hourly) I thought 
 temporary information was frowned upon. I think they should be removed 
 or am I missing something?
 
 Dave F.
 
 ---
 This email is free from viruses and malware because avast! Antivirus 
 protection is active.
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