[Tagging] Overhead signs (Überkopfwegweiser)

Marc Gemis marc.gemis at gmail.com
Fri Jan 16 14:42:15 UTC 2015


do you know the :lanes suffix ? See e.g. the last example on
http://wiki.openstreetmap.org/wiki/Key:destination
and combine this with turn:lanes for the arrows

regards

m

On Fri, Jan 16, 2015 at 10:19 AM, Andreas Labres <list at lab.at> wrote:

> Hello,
>
> I'd like to suggest an idea to map overhead signposts
> ("Überkopfwegweiser" in German):
>
> Here is a photo of the sign to be mapped:
>
>
> http://commons.wikimedia.org/wiki/File:A23_Knoten_Kaiserm%C3%BChlen_1.JPG
>
> To map:
> Put a node on the way of the street exactly where the sign is located
> and tag it something like this:
>
> overhead-sign=|| Brno, Gänserndorf, Stadlau [A23]; | Praha [A23]; / Kagran
> [B3];
> > Ölhafen Lobau
>
> * with the arrows represented by:
>
>     |  ....   up arrow
>     /  ....   slight right arrow
>     >  ....   turn right arrow
>     \  ....   slight left arrow
>     <  ....   turn left arrow
>
> * the text indicates the text that is written on the sign
>   (the text should match any destination= tags given on exits)
>
> * refs are given within square brackets [...]
>
> * a semiconlon ; separates the arrows
>
> This gives a router the possibility to show a drawing of
> the sign, depending on the direction:
>
> heading Brno:
> +-------------------------------+
> | Brno,... [A23]                |
> |    ^    ^       ^     /    >  |
> |    |    |       |    /    /   |
> +-------------------------------+
>
> heading Praha:
> +-------------------------------+
> |          Praha [A23]          |
> |   ^   ^      ^        /    >  |
> |   |   |      |       /    /   |
> +-------------------------------+
>
> heading Kagran:
> +-------------------------------+
> |              Kagran [B3]      |
> |   ^   ^   ^        /       >  |
> |   |   |   |       /       /   |
> +-------------------------------+
>
> heading Ölhafen Lobau:
> +-------------------------------+
> |                  Ölhafen Lobau|
> |  ^   ^   ^    /       >       |
> |  |   |   |   /       /        |
> +-------------------------------+
>
> (this ASCII art should of course be a drawing with "real"
> arrows, nice ref-shields and so on)
>
> Of course this should match the information given in any lane tags,
> but it gives the exact position of the sign and it works without
> the need of lane tags! That way it should be much easier for
> routing app developers to implement hints which lane to use.
> For the driver, it's simpler to match the sign given by the app
> with the real sign.
>
> /al
>
>
> _______________________________________________
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> Tagging at openstreetmap.org
> https://lists.openstreetmap.org/listinfo/tagging
>
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