[Tagging] How to tag way with two traffic signs affecting different directions?

[Philip Barnes]

Hi AntónioNormally I would add direction:forward or direction:backward
to a stop or give_way to indicate which direction it applies in.
Where speed limits are different you can use maxspeed:backward and
maxspeed:forward.
Phil (trigpoint)

On Sat, 2020-05-02 at 15:16 -0300, António Madeira wrote:
>     Hi there.
> 
>     Following this topic, I would like to extend the discussion to
> the
>     mail list, because I think this is an important issue that should
>     have a broad solution.
> 
>     https://forum.openstreetmap.org/viewtopic.php?id=69011
> 
>     
> 
>     
> 
>     Several months ago, I stumbled upon a problem which I found no
>     solution to. At the time, I searched for help in the Telegram
>     channel and someone gave me a solution that I've been using since
>     then.
> 
>     Meanwhile, another mapper contacted me in private and told me
> about
>     another kind of solution to this problem.
> 
>     I would like to know if these are both valid and/or which one is
>     more useful for routing.
> 
>     
> 
>     I'm showing here illustrations of the problem and the two
> solutions
>     given.
> 
>     
> 
>     
> 
>     Problem #1:
> 
>     https://i.imgur.com/8MiiKFH.png
> 
>     
> 
>     The selected way has a STOP at the end for those who turn left
> and a
>     give way sign for those who turn right.
> 
>     The "problem" is: how to map those two signs correctly and make
> them
>     useful for routing software?
> 
>     
> 
>     Problem #2:
> 
>     https://i.imgur.com/cLFRtLG.png
> 
>     
> 
>     There are no painted islands and no physical divisions. The
> middle
>     lane as a STOP sign to turn left.
> 
>     If you have
> 
>       lanes=3;
> 
>       lanes:forward=1;
> 
>       lanes:backward=2;
> 
>       turn:lanes:backward=left|through 
> 
>     how do you indicate that there's a STOP on one of them?
> 
>     
> 
>     
> 
>     
> 
>     Solution #1:
> 
>     https://i.imgur.com/HDmvZiB.png
> 
>     
> 
>     Use both traffic signs on the way and create one enforcement
>     relation for each of them. A "from" enforcement on the STOP and a
>     "to" on the left segment of "Rua Paulo VI" and a "from"
> enforcement
>     on the give way and a "to" on the right segment of "Rua Paulo
> VI".
> 
>     
> 
>     
> 
>     Solution #2:
> 
>     Just use the following tags:
> 
>     highway=secondary
> 
>     lanes=2
> 
>     oneway=yes
> 
>     name=Rua da Quinta
> 
>     ref=EN 350
> 
>     surface=asphalt
> 
>     traffic_sign:lanes=stop|give_way
> 
>     turn:lanes:forward=left|right
> 
>     
> 
>     I never used traffic_sign:lanes tag, but it seems legit, although
>     Taginfo only shows 20 uses for this:
> 
>     https://taginfo.openstreetmap.org/search?q=traffic_sign%3Alanes
> 
>     
> 
>     
> 
>     Any considerations would be much appreciated.
> 
>     
> 
>     Regards.
> 
>   
> 
> _______________________________________________Tagging mailing 
> listTagging at openstreetmap.org
> https://lists.openstreetmap.org/listinfo/tagging
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