Re: [Talk-GB] prow_ref format for Dorset Public Rights of Way

2020-04-18 Thread Stephen Colebourne
On Sat, 18 Apr 2020 at 09:02, Robert Whittaker (OSM lists)
 wrote:
> > Maybe we should develop some sort of (crowd-sourced?) service which looks 
> > up parishes based on parish codes to allow easy contribution of descriptive 
> > prow_refs?
>
> I've started an effort in that direction at
> https://osm.mathmos.net/prow/ref-formats/ .

FWIW, in Merton (London Borough) I'm using the format "Merton FP 86".
The numbering seems to be unique across the borough, not parish.

Stephen

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Re: [Talk-GB] prow_ref format for Dorset Public Rights of Way

2020-04-18 Thread Robert Whittaker (OSM lists)
On Thu, 16 Apr 2020 at 15:34, Nick Whitelegg
 wrote:
> I wasn't familiar with the situation in Dorset but MapThePaths uses the 'SE 
> 4/22' scheme (actually it appears as 'SE 4 22') so if people want to use MTP 
> as a source for prow_refs, then that would be the format to use.

In general, I think that tools (mine included) should follow agree
tagging, rather than the tagging following the tools.

> In terms of how I arrive at the references, I sourced the data from the 
> rowmaps site and applied a script which looked for a particular field (I 
> forget its name) in the rowmaps data. This is done consistently across all 
> counties.

Unfortunately, my experience of the rowmaps data itself is that it's
not really consistent in what it puts in its fields. (That's not
rowmap's fault though -- Barry is just using whatever formats arrive
in the data his tool consumes.

> I don't really mind too much what people use to be honest, obviously 
> something like 'Studland FP 1' or similar would be more descriptive, but 
> would require an extra step to look up the parish name.
>
> Maybe we should develop some sort of (crowd-sourced?) service which looks up 
> parishes based on parish codes to allow easy contribution of descriptive 
> prow_refs?

I've started an effort in that direction at
https://osm.mathmos.net/prow/ref-formats/ . For each county in the
list there's a regular expression for parsing the prow_ref tag, and a
printf format for outputting a prow_ref tag from structured data. This
is then what my PRoW tool uses internally. I'm in the process of
adding the parish name/id lookup tables that I've collected to this
page. There's a JSON feed with the data to make it easier for others
to use it too.

> On the other hand some counties do not use parish refs at all in hhe number, 
> though they do mention them in the full ref (e.g. FERNHURST 1254). The 
> Chichester district of West Sussex (not OGL, by the way - unfortunately from 
> my POV as it's an area I'm interested in) appears to use a simple number for 
> all PROW refs, ranging from about 1-3500. This is not consistent in a given 
> parish, e.g. numbers between 1200-1299 appear to be spread between Fernhurst, 
> Lynchmere and Milland parishes.

Warwickshire is a bit like this too. It seems they numbered their
Rights of Way within each former district/borough. When this happens,
in my tool I treat these areas as "parishes". See e.g.
https://osm.mathmos.net/prow/progress/warks/north-warks/atherstone-rural-district/

Best wishes,

Robert.

-- 
Robert Whittaker

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Re: [Talk-GB] prow_ref format for Dorset Public Rights of Way

2020-04-16 Thread Nick Whitelegg
>Based on this, my preference would be to standardise on the "SE4/22"
>style format for the prow_ref in Dorset, and convert any other
>instances found to this. What does everyone else think? I'll invite
>Nick Whitelegg (who developed the "map the paths" site) and also a few
>mappers who've made significant contributions to Dorset PRoW's in OSM
>to this thread to get their input too.


Hello Robert,

I wasn't familiar with the situation in Dorset but MapThePaths uses the 'SE 
4/22' scheme (actually it appears as 'SE 4 22') so if people want to use MTP as 
a source for prow_refs, then that would be the format to use.

In terms of how I arrive at the references, I sourced the data from the rowmaps 
site and applied a script which looked for a particular field (I forget its 
name) in the rowmaps data. This is done consistently across all counties.

I don't really mind too much what people use to be honest, obviously something 
like 'Studland FP 1' or similar would be more descriptive, but would require an 
extra step to look up the parish name.

Maybe we should develop some sort of (crowd-sourced?) service which looks up 
parishes based on parish codes to allow easy contribution of descriptive 
prow_refs?

On the other hand some counties do not use parish refs at all in hhe number, 
though they do mention them in the full ref (e.g. FERNHURST 1254). The 
Chichester district of West Sussex (not OGL, by the way - unfortunately from my 
POV as it's an area I'm interested in) appears to use a simple number for all 
PROW refs, ranging from about 1-3500. This is not consistent in a given parish, 
e.g. numbers between 1200-1299 appear to be spread between Fernhurst, Lynchmere 
and Milland parishes.

Nick





From: Robert Whittaker (OSM lists) 
Sent: 16 April 2020 14:18
To: talk-gb 
Subject: [Talk-GB] prow_ref format for Dorset Public Rights of Way

I've recently been looking at increasing the coverage of my PRoW
comparison tool https://osm.mathmos.net/prow/progress/ by adding new
counties. In particular, I've been looking at the data from Dorset.
I've hit a small issue though, in that the council uses two different
formats for their Right of Way Numbers. We really need to just select
one for the county in order to be consistent in OSM.

One format has a parish code followed by a slash and then the route
number within the parish (e.g. "SE4/22" for path number 22 in
Affpuddle and Turnerspuddle parish). The other would be to use the
full parish name, right of way type, and number. I asked their
Definitive Map officer about this and got the response:

"Both systems are used in parallel. For mapping (where the status and
parish are obvious) and for internal use, we use the numbering system,
but when reporting to Committee members or members of the public who
will not be familiar with the numbering system, we name the parish and
describe the status. Our sealed statements are listed by named parish,
status and route number. Our working statement spreadsheet uses parish
number, status and route number."

The "SE4/22" style numbers are what are used on Dorset Council's own
online map at 
https://www.dorsetcouncil.gov.uk/countryside-coast-parks/rights-of-way/rights-of-way-map-where-to-walk-ride-or-cycle.aspx
. Currently in OSM we have about 394km of routes in Dorset using this
style in the prow_ref tag, and another 98km using this style with a
space instead of the slash. That a total of around 492km based on the
parish codes and numbers. Conversely, there's only around 125km of
routes in Dorset that have a prow_ref tag that includes a parish name.

Based on this, my preference would be to standardise on the "SE4/22"
style format for the prow_ref in Dorset, and convert any other
instances found to this. What does everyone else think? I'll invite
Nick Whitelegg (who developed the "map the paths" site) and also a few
mappers who've made significant contributions to Dorset PRoW's in OSM
to this thread to get their input too.

Best wishes,
Robert.

--
Robert Whittaker

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Re: [Talk-GB] prow_ref format for Dorset Public Rights of Way

2020-04-16 Thread Tony OSM

Hi Rob

There is a very similar state in Lancashire, I can imagine the 
Lancashire officer providing  a very similar response to that from Dorset.


Dorset are saying that their definitive statement is listed by named 
parish, status and route number.


I believe that as the public definitive reference is named parish, 
status and route number then that should be what is in OSM, using number 
references looks to me like an internal workaround for earlier computers 
and spreadsheets.


Using named parish, status and route number also makes it easier to use 
on maps - eg Andy Townsends 
https://map.atownsend.org.uk/maps/map/map.html#zoom=13=53.6423=-2.5975


Regards and mapsafe

Tony Shield

TonyS999

On 16/04/2020 14:18, Robert Whittaker (OSM lists) wrote:

I've recently been looking at increasing the coverage of my PRoW
comparison tool https://osm.mathmos.net/prow/progress/ by adding new
counties. In particular, I've been looking at the data from Dorset.
I've hit a small issue though, in that the council uses two different
formats for their Right of Way Numbers. We really need to just select
one for the county in order to be consistent in OSM.

One format has a parish code followed by a slash and then the route
number within the parish (e.g. "SE4/22" for path number 22 in
Affpuddle and Turnerspuddle parish). The other would be to use the
full parish name, right of way type, and number. I asked their
Definitive Map officer about this and got the response:

"Both systems are used in parallel. For mapping (where the status and
parish are obvious) and for internal use, we use the numbering system,
but when reporting to Committee members or members of the public who
will not be familiar with the numbering system, we name the parish and
describe the status. Our sealed statements are listed by named parish,
status and route number. Our working statement spreadsheet uses parish
number, status and route number."

The "SE4/22" style numbers are what are used on Dorset Council's own
online map at 
https://www.dorsetcouncil.gov.uk/countryside-coast-parks/rights-of-way/rights-of-way-map-where-to-walk-ride-or-cycle.aspx
. Currently in OSM we have about 394km of routes in Dorset using this
style in the prow_ref tag, and another 98km using this style with a
space instead of the slash. That a total of around 492km based on the
parish codes and numbers. Conversely, there's only around 125km of
routes in Dorset that have a prow_ref tag that includes a parish name.

Based on this, my preference would be to standardise on the "SE4/22"
style format for the prow_ref in Dorset, and convert any other
instances found to this. What does everyone else think? I'll invite
Nick Whitelegg (who developed the "map the paths" site) and also a few
mappers who've made significant contributions to Dorset PRoW's in OSM
to this thread to get their input too.

Best wishes,
Robert.



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[Talk-GB] prow_ref format for Dorset Public Rights of Way

2020-04-16 Thread Robert Whittaker (OSM lists)
I've recently been looking at increasing the coverage of my PRoW
comparison tool https://osm.mathmos.net/prow/progress/ by adding new
counties. In particular, I've been looking at the data from Dorset.
I've hit a small issue though, in that the council uses two different
formats for their Right of Way Numbers. We really need to just select
one for the county in order to be consistent in OSM.

One format has a parish code followed by a slash and then the route
number within the parish (e.g. "SE4/22" for path number 22 in
Affpuddle and Turnerspuddle parish). The other would be to use the
full parish name, right of way type, and number. I asked their
Definitive Map officer about this and got the response:

"Both systems are used in parallel. For mapping (where the status and
parish are obvious) and for internal use, we use the numbering system,
but when reporting to Committee members or members of the public who
will not be familiar with the numbering system, we name the parish and
describe the status. Our sealed statements are listed by named parish,
status and route number. Our working statement spreadsheet uses parish
number, status and route number."

The "SE4/22" style numbers are what are used on Dorset Council's own
online map at 
https://www.dorsetcouncil.gov.uk/countryside-coast-parks/rights-of-way/rights-of-way-map-where-to-walk-ride-or-cycle.aspx
. Currently in OSM we have about 394km of routes in Dorset using this
style in the prow_ref tag, and another 98km using this style with a
space instead of the slash. That a total of around 492km based on the
parish codes and numbers. Conversely, there's only around 125km of
routes in Dorset that have a prow_ref tag that includes a parish name.

Based on this, my preference would be to standardise on the "SE4/22"
style format for the prow_ref in Dorset, and convert any other
instances found to this. What does everyone else think? I'll invite
Nick Whitelegg (who developed the "map the paths" site) and also a few
mappers who've made significant contributions to Dorset PRoW's in OSM
to this thread to get their input too.

Best wishes,
Robert.

-- 
Robert Whittaker

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