Re: [Talk-GB] Implicit speed limits: What to tag in built-up areas?

2018-05-01 Thread Jason Cunningham
I had a bit of an interest in tagging speed limits a few years back. It's way more complicated than it should be in the UK. Researching led me down a bit of a rabbit hole of legislation & case law. I made the following personal notes about UK limits and how to recognise them, which I think is

Re: [Talk-GB] Implicit speed limits: What to tag in built-up areas?

2018-05-01 Thread Tobias Zwick
So then, in case the user answers in the app that there is no sign, the app could ask the user whether the street is lit. Only if it is not lit, it tags the street as nsl_single/nsl_dual. Would that solution be correct? On 01/05/2018 19:22, Philip Barnes wrote: > On Tue, 2018-05-01 at 18:42

Re: [Talk-GB] Implicit speed limits: What to tag in built-up areas?

2018-05-01 Thread Philip Barnes
On Tue, 2018-05-01 at 19:15 +0200, Colin Smale wrote: > In most European countries there are rules/conventions that the sign > only applies until the next junction, at which point the sign must be > repeated if required.  That is something I found really confusing the first time I drove in

Re: [Talk-GB] Implicit speed limits: What to tag in built-up areas?

2018-05-01 Thread Philip Barnes
On Tue, 2018-05-01 at 18:42 +0200, Tobias Zwick wrote: > Does the "there are no repeater signs" rule only apply for the > default > 30 mph limit (and the 20 mph zones)? Or in other words, if there is > an > explicit different limit posted, let's say 40 mph, does it have to be > repeated at each

Re: [Talk-GB] Implicit speed limits: What to tag in built-up areas?

2018-05-01 Thread Colin Smale
If it is marked as a 20mph Zone, the limit must be self-enforcing through chicanes, speed bumps and similar. Repeaters are neither needed nor permitted. If it is not a Zone, but simply a road with a 20mph limit, repeaters are required.

Re: [Talk-GB] Implicit speed limits: What to tag in built-up areas?

2018-05-01 Thread Philip Barnes
On Tue, 2018-05-01 at 17:34 +0100, Jonathan wrote: > Am I missing something? The 20 mph signs are the same as all speed > restrictions signs are they not? >   They have the word Zone on the sign https://www.mapillary.com/map/im/keuNX2tehPliEtm3Xt6CSg

Re: [Talk-GB] Implicit speed limits: What to tag in built-up areas?

2018-05-01 Thread Tobias Zwick
Does the "there are no repeater signs" rule only apply for the default 30 mph limit (and the 20 mph zones)? Or in other words, if there is an explicit different limit posted, let's say 40 mph, does it have to be repeated at each intersection and feed roads? Tobias On 01/05/2018 16:35, Philip

Re: [Talk-GB] Implicit speed limits: What to tag in built-up areas?

2018-05-01 Thread Jonathan
Am I missing something? The 20 mph signs are the same as all speed restrictions signs are they not? Jonathan http://bigfatfrog67.me From: Tobias Zwick Sent: 01 May 2018 10:45 To: talk-gb@openstreetmap.org Subject: Re: [Talk-GB] Implicit speed limits: What to tag in built-up areas? This tag is

Re: [Talk-GB] Implicit speed limits: What to tag in built-up areas?

2018-05-01 Thread Philip Barnes
On Tue, 2018-05-01 at 16:09 +, Nick Whitelegg wrote: > > > > > > > EDIT: sorry, silly question. For some reason I overlooked that JOSM > works with OSM OAuth, so the answer to the general question "can a > non-web app authenticate with OSM" would appear to be yes. > > > StreetComplete

Re: [Talk-GB] Implicit speed limits: What to tag in built-up areas?

2018-05-01 Thread Nick Whitelegg
EDIT: sorry, silly question. For some reason I overlooked that JOSM works with OSM OAuth, so the answer to the general question "can a non-web app authenticate with OSM" would appear to be yes. Nick From: Nick Whitelegg Sent:

Re: [Talk-GB] Implicit speed limits: What to tag in built-up areas?

2018-05-01 Thread Nick Whitelegg
... this would be with a user's individual account by the way, not some generic anonymous account. Thanks, Nick From: Nick Whitelegg Sent: 01 May 2018 16:46:53 To: talk-gb@openstreetmap.org Subject: Re: [Talk-GB] Implicit speed limits: What to tag in built-up

Re: [Talk-GB] Implicit speed limits: What to tag in built-up areas?

2018-05-01 Thread Nick Whitelegg
I realise I'm going a bit OT here and this is more a dev topic, but while we're on this topic, I'm just wondering whether it possible to authenticate via OSM OAuth from an app directly? StreetComplete calls the login page of OSM by invoking the web browser. I'm guessing the answer might be

Re: [Talk-GB] Implicit speed limits: What to tag in built-up areas?

2018-05-01 Thread Philip Barnes
That should include Leicester. Phil (trigpoint) On 1 May 2018 16:29:15 BST, Philip Barnes wrote: > > >On 1 May 2018 16:17:40 BST, Rob Nickerson >wrote: >>>When the user answers *"Yes, no sign"* >> >>At that point the easiest option is for the

Re: [Talk-GB] Implicit speed limits: What to tag in built-up areas?

2018-05-01 Thread Philip Barnes
On 1 May 2018 16:17:40 BST, Rob Nickerson wrote: >>When the user answers *"Yes, no sign"* > >At that point the easiest option is for the app to simply stop. Add no >data to OSM. > >And yes, you may have to go back several roads before you see the >speed limit sign. No

[Talk-GB] Implicit speed limits: What to tag in built-up areas?

2018-05-01 Thread Rob Nickerson
>When the user answers *"Yes, no sign"* At that point the easiest option is for the app to simply stop. Add no data to OSM. And yes, you may have to go back several roads before you see the speed limit sign. No all local authorities put up the repeater signs but that doesn't mean that the speed

Re: [Talk-GB] Implicit speed limits: What to tag in built-up areas?

2018-05-01 Thread Andy Townsend
On 01/05/2018 12:43, David Woolley wrote: On 01/05/18 12:23, David Woolley wrote: I don't know about your tool, but it is essential that every user has an explicit personal account with OSM, and that they are set up to receive emails if people add changeset comments, or post messages to their

Re: [Talk-GB] Implicit speed limits: What to tag in built-up areas?

2018-05-01 Thread Philip Barnes
On 1 May 2018 10:41:28 BST, Tobias Zwick wrote: >This is where I need your help. How should the dialog be changed (in >GB) >to not create any misunderstandings here? > Difficult without having seen the speed limit signs as you have entered the zone. My usual approach is

Re: [Talk-GB] Implicit speed limits: What to tag in built-up areas?

2018-05-01 Thread SK53
In fairness to Tobias: - StreetComplete is a well-used app (over 10k installs according to Google Play), representing 2% of all changesets last year. - It offers a way for people who don't want to engage with the full complexity of learning an editor (as represented by the person who

Re: [Talk-GB] Implicit speed limits: What to tag in built-up areas?

2018-05-01 Thread Tobias Zwick
Did you read my last paragraph? Could you respond also to that? On 01/05/2018 13:23, David Woolley wrote: > Two or three years ago, we had problem of lots of bogus "wrong speed > limit" notes being added by one particular app.  The general result ws > that no-one took any notice of the notes from

Re: [Talk-GB] Implicit speed limits: What to tag in built-up areas?

2018-05-01 Thread David Woolley
On 01/05/18 12:23, David Woolley wrote: I don't know about your tool, but it is essential that every user has an explicit personal account with OSM, and that they are set up to receive emails if people add changeset comments, or post messages to their OSM account.  maps.me has a high incidence

Re: [Talk-GB] Implicit speed limits: What to tag in built-up areas?

2018-05-01 Thread Andy Townsend
On 01/05/2018 12:23, David Woolley wrote: I don't know about your tool, but it is essential that every user has an explicit personal account with OSM, and that they are set up to receive emails if people add changeset comments, or post messages to their OSM account.  maps.me has a high

Re: [Talk-GB] Implicit speed limits: What to tag in built-up areas?

2018-05-01 Thread David Woolley
Two or three years ago, we had problem of lots of bogus "wrong speed limit" notes being added by one particular app. The general result ws that no-one took any notice of the notes from that app. More recently, we have had problems from maps.me, although possibly not for speed limits. I

Re: [Talk-GB] Implicit speed limits: What to tag in built-up areas?

2018-05-01 Thread Tobias Zwick
This tag is not invented, it exists in other countries where slow zones exist as well. Also, there *is* something special about it, otherwise the sign would not be different from a normal maxspeed sign, wouldn't it? (And the wikipedia article wouldn't exist) The special thing about it, is that the

Re: [Talk-GB] Implicit speed limits: What to tag in built-up areas?

2018-05-01 Thread Tobias Zwick
Okay, I have the impression that the tenor of the answers I got so far is that a "maxspeed:type=GB:something" tagging would not be necessary because in practice in the UK, any 30mph limit on lit streets will be posted explicitly. Thus, the maxspeed should be specified explicitly (along with

Re: [Talk-GB] Implicit speed limits: What to tag in built-up areas?

2018-05-01 Thread Richard Fairhurst
Philip Barnes wrote: > I wouldn't invent a type tag, it's maxspeed = 20 mph > because that's what the sign says. There is nothing special > about these areas. No, 20mph zones and roads with 20mph limits are different legal concepts and are signed differently. A 20mph zone must have physical

Re: [Talk-GB] Implicit speed limits: What to tag in built-up areas?

2018-05-01 Thread Philip Barnes
I wouldn't invent a type tag, it's maxspeed = 20 mph because that's what the sign says. There is nothing special about these areas. Phil (trigpoint)  On 1 May 2018 09:58:23 BST, Tobias Zwick wrote: >Regarding the 20mph zones >(see

Re: [Talk-GB] Implicit speed limits: What to tag in built-up areas?

2018-05-01 Thread Tobias Zwick
Regarding the 20mph zones (see https://en.wikipedia.org/wiki/30_km/h_zone), analogous to other countries where they exist, they would be tagged as maxspeed:type=GB:zone20. On 30/04/2018 20:57, Philip Barnes wrote: > Whilst in theory there is an implicit 30mph when street lights are > present and

Re: [Talk-GB] Implicit speed limits: What to tag in built-up areas?

2018-05-01 Thread David Woolley
On 30/04/18 18:41, Tobias Zwick wrote: On tagging implicit speed limits in the United Kingdom, the wiki lists the following values [1] for "maxspeed:type": GB:nsl_single (=60 mph), GB:nsl_dual (=70 mph) and GB:motorway (=70 mph) Aren't we missing a couple of points here? These speed limits