[talk-au] [EXTERNAL] Re: Join roundabouts

[Warin]

On 9/4/20 8:13 pm, Nemanja Bracko (E-Search) via Talk-au wrote:
> Update: Green are 2 different relations, so call it 1A and 1B - one (1A) is towards Brisbane and 1B is towards Sydney. We are focusing here on 1B.
> If you do not split the road, you will have whole roundabout I section TO/FROM.


I would have the 'to' as the exit road, not part of the roundabout.

The 'from' could be a single node of the roundabout.

Some will be coming from the unmarked road to the right...

Some may even be coming the wrong way having entered from a side road that has only a connection to one side of the road that is a one way section before the roundabout.

>
> Thanks,
> Nemanja
>
> -----Original Message-----
> From: Nemanja Bracko (E-Search)
> Sent: Thursday, April 9, 2020 12:08 PM
> To: Andrew Davidson <theswavu at gmail.com>
> Cc: OpenStreetMap <talk-au at openstreetmap.org>
> Subject: RE: [EXTERNAL] Re: [talk-au] Join roundabouts
>
> Honestly it would take too much time to look for these, but here's the example:
> https://prnt.sc/rw0jhf
>
> Please focus on a green relation, segment TO Sydney.
>
> Thanks,
> Nemanja
>
> -----Original Message-----
> From: Andrew Davidson <theswavu at gmail.com>
> Sent: Thursday, April 9, 2020 11:34 AM
> To: Nemanja Bracko (E-Search) <v-nebrac at microsoft.com>; Andrew Harvey <andrew.harvey4 at gmail.com>
> Cc: OpenStreetMap <talk-au at openstreetmap.org>
> Subject: Re: [EXTERNAL] Re: [talk-au] Join roundabouts
>
> On 9/4/20 5:40 pm, Nemanja Bracko (E-Search) wrote:
>> 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%2Ftiny
>> url.com%2Fuam667d&data=02%7C01%7Cv-nebrac%40microsoft.com%7Ca52744
>> 1a54e645ec45e708d7dc691d9e%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%
>> 7C637220216336463661&sdata=l80zq8dFvc6HbZmiqdhLhYIJxc1YahXtqBfRYPp
>> fms0%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%2Ftiny
>> url.com%2Fwagdlv3&data=02%7C01%7Cv-nebrac%40microsoft.com%7Ca52744
>> 1a54e645ec45e708d7dc691d9e%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%
>> 7C637220216336463661&sdata=pbkEzfoJIAOn3gGUFkNQvrNLoP2%2FE7olll%2B
>> 08URY46k%3D&reserved=0
> If you have two different destination signs then you have two separate destination_sign relations.
>> 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.
> You do not need to split the ways. If you read the wiki page you will find that the members of the relation can be specified using the *nodes*
>
>> 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.
>>
> Do you have a real world example? If you do I can tag it for you, it's going to be easier than trying to explain it.
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