PS. There are some edge cases as well when "from" member is in the roundabout (on exit node you will have destination signpost that will state: Exit - Brisbane; Next Exit - Sydney). This kind of marking is very rare but we could find couple of these on a very big roundabouts.
Thanks, Nemanja -----Original Message----- From: Nemanja Bracko (E-Search) via Talk-au <talk-au@openstreetmap.org> Sent: Thursday, April 9, 2020 9:41 AM To: Andrew Davidson <thesw...@gmail.com>; Andrew Harvey <andrew.harv...@gmail.com> Cc: OpenStreetMap <talk-au@openstreetmap.org> Subject: Re: [talk-au] [EXTERNAL] Re: Join roundabouts Hi everyone! Thank you all for responding to this thread. Thank you Harvey for suggestion to contact them directly, and we left comments on changesets. I am really sad when someone claims that we are trying to adapt OSM to our needs, instead of adapting to OSM. I can strongly confirm that statement is not true at all, and we are trying to adapt to each country separately because community is doing same things with different approach. Anyway... We are trying to stick to OSM Wiki as much as possible, but in very early days when we were starting AU editing, I had some discussion with Andrew Harvey regarding surface tags and OSM Wiki, and couple of community members and him told me one very useful thing at that time and I really appreciate it: OSM Wiki is not a specification of OSM data, but rather guideline how to use some option or tag. Also it is full of contradictories as well. Anyway, back to roundabouts... When approaching to roundabout, you will see at least one signpost which informs you that you approaching to the roundabout. It will look like this: https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Ftinyurl.com%2Fuam667d&data=02%7C01%7Cv-nebrac%40microsoft.com%7C4c0195ed00a848bcbfc908d7dc59873f%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637220149396716611&sdata=irX0unpWa2ricEAdcUnY0FrDHS0cBHfVg0e5dWRZkss%3D&reserved=0 and then, within the roundabout you have a new signpost which can be totally different than it was before the junction: https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Ftinyurl.com%2Fwagdlv3&data=02%7C01%7Cv-nebrac%40microsoft.com%7C4c0195ed00a848bcbfc908d7dc59873f%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637220149396716611&sdata=PvWp7vJbQiEjKa0cWuRnMXkD9vYR5ogsKsTD1BoMpP8%3D&reserved=0 *in this example these are the same. The reason why do we split it into couple of ways is to properly put direction where it is possible to see the sign for the first time. Davdson said, by OSM Wiki, everything is optional, except member "to". Yes, you are correct, but if you put both of these relations in "to" - how could you recognize which one is before another? The other thing is that if you put first signpost in relation with "to" member only (or with "intersection" and "to" members), but without "from" - destination signpost would be displayed from ANY direction that you are coming from. Thanks, Nemanja -----Original Message----- From: Andrew Davidson <thesw...@gmail.com> Sent: Tuesday, April 7, 2020 11:09 AM To: Andrew Harvey <andrew.harv...@gmail.com> Cc: Nemanja Bracko (E-Search) <v-neb...@microsoft.com>; OpenStreetMap <talk-au@openstreetmap.org> Subject: [EXTERNAL] Re: [talk-au] Join roundabouts On 7/4/20 9:13 am, Andrew Harvey wrote: > I mean when the from member should be the roundabout way, think of a > large roundabout where the destination sign exists on the roundabout > exit, the from is not the leading way it's the roundabout itself. If the sign is on the exit of a roundabout you can: 1. Tag the outbound way using destination=* 2. Use a destination_sign relationship with a to and intersection member but no from member (it's optional in this case because the destination sign is identical from all inbound directions). 3. Use a destination_sign relation with to, intersection, and from *node* members. You can use either a way or a node on that way to specify a member of a destination_sign relation. That's three alternatives to splitting the roundabout way to make a destination_sign relation. _______________________________________________ Talk-au mailing list Talk-au@openstreetmap.org https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.openstreetmap.org%2Flistinfo%2Ftalk-au&data=02%7C01%7Cv-nebrac%40microsoft.com%7C4c0195ed00a848bcbfc908d7dc59873f%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637220149396716611&sdata=FgcwEhccAZm8DGVYaWfTdCFzWnY9mHqvQaqWaZbjE8I%3D&reserved=0 _______________________________________________ Talk-au mailing list Talk-au@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-au
