Re: [Talk-GB] Removing all stiles from bridleways

2020-12-15 Thread Richard Fairhurst
Andrew Hain wrote:
> What distinction would you make between this and the cycle
> route over steps that was discussed recently or the
> signposted cycle route past cycle barriers in Barnes,
> London?

"Cycle routes" as a distinct concept don't have any legal force, other than 
authorised forms of signage in TSRGD. It would be nice if they did (in my patch 
as an NCN co-ordinator there's two notorious sections where the council 
pedestrianised the route…), but they don't.

Obstructing "free passage" along a PRoW is a criminal offence (Highways Act 
1980). Installing a stile or gate can only be done with the consent of the 
highway authority (same act).

Richard
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Re: [Talk-GB] Removing all stiles from bridleways

2020-12-15 Thread Andrew Hain
What distinction would you make between this and the cycle route over steps 
that was discussed recently or the signposted cycle route past cycle barriers 
in Barnes, London?

--
Andrew

From: Richard Fairhurst 
Sent: 14 December 2020 20:57
To: talk-gb OSM List (E-mail) 
Subject: Re: [Talk-GB] Removing all stiles from bridleways

Neil Matthews wrote:
> Looks like there's been an attempt to remove all stiles from
> bridleways

Um, no there hasn't?

The changeset you've pointed to (which is one of mine) has a single stile moved 
to the side of a bridleway. I've done this a handful of times in the past, too, 
usually where the stile is clearly misplaced at a footpath/bridleway junction 
node rather than off to the side on a footpath, but occasionally at an isolated 
bridleway location like this.

A barrier=stile on a long-established UK bridleway is 99.9% a mapping error. 
Bridleways are open to horses and bikes, and so stiles are forbidden - PRoW 
officers are pretty hot on this. You will sometimes see a stile placed to the 
side of a gate: in OSM this is usually mapped as a highway=footway through the 
stile and highway=bridleway through the gate, though of course there's no 
distinct public footpath PRoW in this case.

OSM is an iterative process of fixup and improvement, and shouting "mechanical 
edit!" every time someone makes a change that hasn't been surveyed in walking 
boots and then manually etched onto the hard disc platters of a server 
somewhere in Amsterdam is not hugely helpful. I mean, just change it back and 
say "put back pending survey" if you feel that strongly, it doesn't need an 
entire mailing list thread.

Richard
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Re: [Talk-GB] Removing all stiles from bridleways

2020-12-15 Thread ael via Talk-GB
On Mon, Dec 14, 2020 at 11:15:47PM +, Andy Mabbett wrote:
> On Mon, 14 Dec 2020 at 20:57, ael via Talk-GB  
> wrote:
> 
> > I would regard this as vandalism if it is removing surveyed real stiles
> > to suit an ideal world where they are not permitted on bridleways.
> 
> I favour the definitions used on the English Wikipedia, which make it
> clear that vandalism is deliberate harm, and that any well-intentioned
> edit, even if incorrect, is not vandalism, because:

I am probably oversensitive because I have had cases where I have
surveyed repeatedly with gps & photography and noted that in source
tags, only to have armchair mappers "correct" the mapping. Although
I suspect that in most cases they have just ignored the existing
mapping.

In this case, I only skimmed the changeset and failed to notice who had
made the change. I regularly map not far from this area, and know that
bridleways are often obstructed here (and elsewhere).

I must say that in situations where I suspect a problem like that, I do
usually contact the original mapper to discuss the situation rather
than take unilateral action.

ael


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Re: [Talk-GB] Removing all stiles from bridleways

2020-12-14 Thread Andy Mabbett
On Mon, 14 Dec 2020 at 20:57, ael via Talk-GB  wrote:

> I would regard this as vandalism if it is removing surveyed real stiles
> to suit an ideal world where they are not permitted on bridleways.

I favour the definitions used on the English Wikipedia, which make it
clear that vandalism is deliberate harm, and that any well-intentioned
edit, even if incorrect, is not vandalism, because:

If an editor treats situations which are not clearly vandalism as such, it
may harm the encyclopedia by alienating or driving away potential editors.

https://en.wikipedia.org/wiki/Wikipedia:Vandalism#What_is_not_vandalism

-- 
Andy Mabbett
@pigsonthewing
http://pigsonthewing.org.uk

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Re: [Talk-GB] Removing all stiles from bridleways

2020-12-14 Thread Chris Hodges
I've also had an electric fence across a bridleway, and some very grumpy 
cows the other side of it. Luckily the farmer appeared and was very 
happy to let me through or it would have been retracing 3km of grassy 
riding on a touring bike.


I'm rather prone to bike-hiking, even if not keen on it, so see the 
benefit of a correct "bicycle=yes" - and I'll try to fill in the 
tracktype, surface, and sometimes (rather subjective) bike difficulty 
when I get home.  After Saturday's ride one bridleway should have been 
tagged "surface=water"


As for comfy Cotswolds - I'm not far from there, so I know you get 
things like locked gates wrapped in barbed wire on bridleways, within 
the boundaries of the changeset that prompted this



On 14/12/2020 21:51, Andy Townsend wrote:

On 14/12/2020 20:57, Richard Fairhurst wrote:
A barrier=stile on a long-established UK bridleway is 99.9% a mapping 
error. Bridleways are open to horses and bikes, and so stiles are 
forbidden - PRoW officers are pretty hot on this.


That may be the case in the comfy Cotswolds but I'm not sure that 
necessarily the case everywhere else in the country. :)


Actual steps on bridleways are common enough that I had to add a 
rendering for them at map.atownsend.org.uk (see 
https://map.atownsend.org.uk/maps/map/map.html#zoom=19&lat=54.417701&lon=-0.525549 
).  I might have recently mentioned 
https://map.atownsend.org.uk/maps/map/map.html#zoom=21&lat=54.0087259&lon=-1.0201263 
(a bridleway with an electric fence across it) on this list as well.


There are plenty of signed bridleways where horse access might be 
difficult for other reasons:  I set horse_scale=demanding on 
https://www.openstreetmap.org/way/762748920 , but on balance it should 
perhaps be a higher value due to the difficulty in negotiating the 
descent.  A subsequent mapper added bicycle=yes there - that's 
entirely correct, but the depth of the mud and the thickness of the 
trees would would be a challenge to even the keenest MTBer.


With regard to this alleged stile, the previous tagging and location 
would suggest to me a barrier=horse_stile (mentioned earlier in the 
thread) on the bridleway rather than a barrier=stile off it, but so 
much here needs remapping or at the very least rechecking (the stream 
differs greatly from the imagery, at least one of the bridleways looks 
like a track to me, no designation tags) that personally I'd just 
stick it in the "needs survey" bucket.


Best Regards,

Andy



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Re: [Talk-GB] Removing all stiles from bridleways

2020-12-14 Thread Andy Townsend

On 14/12/2020 20:57, Richard Fairhurst wrote:
A barrier=stile on a long-established UK bridleway is 99.9% a mapping 
error. Bridleways are open to horses and bikes, and so stiles are 
forbidden - PRoW officers are pretty hot on this.


That may be the case in the comfy Cotswolds but I'm not sure that 
necessarily the case everywhere else in the country. :)


Actual steps on bridleways are common enough that I had to add a 
rendering for them at map.atownsend.org.uk (see 
https://map.atownsend.org.uk/maps/map/map.html#zoom=19&lat=54.417701&lon=-0.525549 
).  I might have recently mentioned 
https://map.atownsend.org.uk/maps/map/map.html#zoom=21&lat=54.0087259&lon=-1.0201263 
(a bridleway with an electric fence across it) on this list as well.


There are plenty of signed bridleways where horse access might be 
difficult for other reasons:  I set horse_scale=demanding on 
https://www.openstreetmap.org/way/762748920 , but on balance it should 
perhaps be a higher value due to the difficulty in negotiating the 
descent.  A subsequent mapper added bicycle=yes there - that's entirely 
correct, but the depth of the mud and the thickness of the trees would 
would be a challenge to even the keenest MTBer.


With regard to this alleged stile, the previous tagging and location 
would suggest to me a barrier=horse_stile (mentioned earlier in the 
thread) on the bridleway rather than a barrier=stile off it, but so much 
here needs remapping or at the very least rechecking (the stream differs 
greatly from the imagery, at least one of the bridleways looks like a 
track to me, no designation tags) that personally I'd just stick it in 
the "needs survey" bucket.


Best Regards,

Andy


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Re: [Talk-GB] Removing all stiles from bridleways

2020-12-14 Thread Edward Catmur via Talk-GB
On Mon, 14 Dec 2020, 20:58 ael via Talk-GB, 
wrote:

> On Mon, Dec 14, 2020 at 08:30:01PM +, Neil Matthews wrote:
> > Looks like there's been an attempt to remove all stiles from bridleways
> --
> > pretty sure I've seen this done in other edits -- agree that they're a
> > potential anomaly but should they really be a mechanical edit (even if by
> > hand)? See https://www.openstreetmap.org/changeset/95739504
> > https://lists.openstreetmap.org/listinfo/talk-gb
>
> I would regard this as vandalism if it is removing surveyed real stiles
> to suit an ideal world where they are not permitted on bridleways.
>
> Perhaps I have misunderstood?
>

My understanding is that the stiles in question were mapped as a tag on a
bridleway / footway junction, and have been moved to a node on the footway.
This is highly likely to be to be correct, since a (foot) stile is a
construction at the point where a path crosses a fence and so topologically
cannot occur at a junction.

I would generally feel OK doing this without a ground survey if it was
reasonably clear that there is a fence paralleling the bridleway, and that
the footpath is crossing. This might be visible on aerial photography where
the bridleway runs in the gap between two fields, for example.

>
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Re: [Talk-GB] Removing all stiles from bridleways

2020-12-14 Thread Richard Fairhurst
Neil Matthews wrote:
> Looks like there's been an attempt to remove all stiles from
> bridleways

Um, no there hasn't?

The changeset you've pointed to (which is one of mine) has a single stile moved 
to the side of a bridleway. I've done this a handful of times in the past, too, 
usually where the stile is clearly misplaced at a footpath/bridleway junction 
node rather than off to the side on a footpath, but occasionally at an isolated 
bridleway location like this.

A barrier=stile on a long-established UK bridleway is 99.9% a mapping error. 
Bridleways are open to horses and bikes, and so stiles are forbidden - PRoW 
officers are pretty hot on this. You will sometimes see a stile placed to the 
side of a gate: in OSM this is usually mapped as a highway=footway through the 
stile and highway=bridleway through the gate, though of course there's no 
distinct public footpath PRoW in this case.

OSM is an iterative process of fixup and improvement, and shouting "mechanical 
edit!" every time someone makes a change that hasn't been surveyed in walking 
boots and then manually etched onto the hard disc platters of a server 
somewhere in Amsterdam is not hugely helpful. I mean, just change it back and 
say "put back pending survey" if you feel that strongly, it doesn't need an 
entire mailing list thread.

Richard
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Re: [Talk-GB] Removing all stiles from bridleways

2020-12-14 Thread ael via Talk-GB
On Mon, Dec 14, 2020 at 08:30:01PM +, Neil Matthews wrote:
> Looks like there's been an attempt to remove all stiles from bridleways --
> pretty sure I've seen this done in other edits -- agree that they're a
> potential anomaly but should they really be a mechanical edit (even if by
> hand)? See https://www.openstreetmap.org/changeset/95739504
> https://lists.openstreetmap.org/listinfo/talk-gb

I would regard this as vandalism if it is removing surveyed real stiles
to suit an ideal world where they are not permitted on bridleways.

Perhaps I have misunderstood?

ael

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Re: [Talk-GB] Removing all stiles from bridleways

2020-12-14 Thread Jon Pennycook
I have seen at least one bridleway with a stile (not a horse stile).
Bridleways that were recently upgraded from public footpaths may still have
old barriers. Just because there is a right of way, it doesn't mean that
it's fully accessible (e.g a BOAT near Alton that has steps at one end).

Jon

On Mon, 14 Dec 2020, 20:31 Neil Matthews, 
wrote:

> Looks like there's been an attempt to remove all stiles from bridleways
> -- pretty sure I've seen this done in other edits -- agree that they're
> a potential anomaly but should they really be a mechanical edit (even if
> by hand)? See https://www.openstreetmap.org/changeset/95739504
>
> Cheers,
> Neil
>
>
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