Re: [Talk-GB] Turn Restrictions at roundabouts

2020-10-04 Thread Richard Fairhurst
Could I suggest that, rather than second-guessing what some putative router 
might or might not do, people actually try these scenarios with one of the many 
real-world routers to see if they actually happen?

I see an awful lot of "may" and "might" in this thread, together with a liberal 
sprinkling of unsourced assertions, but no actual evidence that any router has 
ever sent anyone round one of these roundabout flares.

Richard
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[Talk-GB] Solar tagging app

2020-10-04 Thread Russ Garrett
Hi folks,

I got annoyed with tagging the number of modules in solar generators,
so I put together a quick crowdsourcing app to collect this data:

https://solartagger.ru.dev/

It's definitely a lot quicker than trying to do this in an editor!

Once we have panel counts that multiple people have agreed on, I'll
batch insert the data into OSM using a new account - I will update
this list once that is happening.

Cheers,

-- 
Russ Garrett
r...@garrett.co.uk

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[Talk-GB] weeklyOSM #532 2020-09-22-2020-09-28

2020-10-04 Thread weeklyteam
The weekly round-up of OSM news, issue # 532,
is now available online in English, giving as always a summary of a lot of 
things happening in the openstreetmap world:

 https://www.weeklyosm.eu/en/archives/13803/

Enjoy! 

Did you know that you can also submit messages for the weeklyOSM? Just log in 
to https://osmbc.openstreetmap.de/login with your OSM account. Read more about 
how to write a post here: 
http://www.weeklyosm.eu/this-news-should-be-in-weeklyosm 

weeklyOSM? 
who: https://wiki.openstreetmap.org/wiki/WeeklyOSM#Available_Languages 
where?: 
https://umap.openstreetmap.fr/en/map/weeklyosm-is-currently-produced-in_56718#2/8.6/108.3
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Re: [Talk-GB] Turn Restrictions at roundabouts

2020-10-04 Thread Martin Wynne

Surely OpenStreetMAP is about creating a MAP? The clue is in the name.

So you map what's on the ground:

1. Put the flares in the right place (often they are wildly out).

2. If there is a "No U-turn" sign you add it, otherwise you don't.

Making a router work properly is a job for the person making the router, 
not the person making the MAP.


Martin.

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Re: [Talk-GB] Turn Restrictions at roundabouts

2020-10-04 Thread James Derrick

On 04/10/2020 07:42, Edward Bainton wrote:
I've been marking them as false positives as to my mind it's obvious 
that you wouldn't U-turn there (but equally, it would be legal to do so).


You would also probably need a vehicle with a tight turning circle, and 
a quiet road - so agree it would be an unusual choice. Agree false 
positives.


But the points about machine routing make me think maybe I shouldn't 
be closing these off? Any thoughts?


Your example looks like a very common roundabout flare 3-way node with a 
cycleway crossing node. Taking the JOSM code as an example, perhaps the 
"ImproveOSM" validation also has a segment length test (<20m?) so the 
crossing is suggesting a more complex junction?



Eg, at node https://www.openstreetmap.org/node/26187838


Personally, adding restrictions to this common a use-case should be 
unnecessary (fix once in the router, not every roundabout on the map). 
Save your effort for more complex junctions where software 
understandably needs a helping hand with real-world oddities.


Happy Mapping,


James
--
James Derrick
li...@jamesderrick.org, Cramlington, England
I wouldn't be a volunteer if you paid me...
https://www.openstreetmap.org/user/James%20Derrick


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Re: [Talk-GB] Turn Restrictions at roundabouts

2020-10-04 Thread Edward Bainton
I regularly get QA messages about this when I use the "ImproveOSM" in iD -
just about every roundabout near me has at least one.

I've been marking them as false positives as to my mind it's obvious that
you wouldn't U-turn there (but equally, it would be legal to do so).

But the points about machine routing make me think maybe I shouldn't be
closing these off? Any thoughts?

Eg, at node https://www.openstreetmap.org/node/26187838

Missing Turn Restriction
Description
0 of 326 recorded trips (travelling west) make a turn from Bretton
Gate to Bretton
Gate at this node. There may be a missing "no_right_turn" restriction.




On Sat, 3 Oct 2020 at 20:01, James Derrick  wrote:

> Hi Dave,
>
> Thanks for answering my original router logic question! :-)
>
>
> On 03/10/2020 17:52, Dave F via Talk-GB wrote:
> > I've just tested in JOSM. It flagged no such validation warning.
> > https://www.openstreetmap.org/way/3403352
>
> Interesting - you're right, I couldn't easily reproduce the 'Sharp
> Angle' validation warning in the latest JOSM either.
>
> After hunting out the code, the warning currently isn't triggered unless
> the segment leading to a <45deg angle is <10m:
>
> https://josm.openstreetmap.de/browser/josm/trunk/src/org/openstreetmap/josm/data/validation/tests/SharpAngles.java
>
> Looking at a couple of local roundabouts via imagery, a flare this short
> verges on a single node highway=mini_roundabout, unless lots of extra
> nodes have been added to the flare to give a curved approach.
>
> After over a dozen years of using JOSM, it still surprises me with extra
> features.
>
> Happy Mapping,
>
>
> James
> --
> James Derrick
>  li...@jamesderrick.org, Cramlington, England
>  I wouldn't be a volunteer if you paid me...
>  https://www.openstreetmap.org/user/James%20Derrick
>
>
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