[OSM-talk-be] zone30/50/70 vs Bebouwde kom/Agglomération/Built-up area

[Jo]

One week ago I had never heard of the zone:traffic tags. I didn't have a
clue how one could tag streets as part of built-up area/city limits or out
of it. For many years this is something I have been wanting to do though.
So I was glad I finally learned how it could/should be done in one of the
many discussions started by Papou.

zone30 are mostly within built-up area, zone50 and zone70 aren't. I think
it's important to distinguish between zoneXX and built-up area as they
occur mostly independent from each other, so the namespaces also ought to
be independent.

We could use source:maxspeed=BE:zone30 instead of source:maxspeed=zone30,
but since a street already gets zone:traffic=BE:urban/rural, the BE seems
less important in the source:maxspeed tags.

I created the following mapcss style to help visualize, alongside the
alreayd existing maxspeed style:

meta
> {
>     title: "Built-up area";
>     description: "Highlight built-up area/city_limits";
>     version: "1.5_2012-11-04";
>     author: "Polyglot";
>     link: "http://josm.openstreetmap.de/wiki/Styles/Built-up_area";
>     min-josm-version: "5198";
> }
> meta[lang=nl]
> {
>     title: "Bebouwde kom";
>     description: "Markeer duidelijk of een straat binnen of buiten de
> bebouwde kom ligt";
> }
> way["zone:traffic"="BE:urban"]::built-up_area
>  {z-index: -5;
>   casing-width: 7;
>   casing-color: #FFFFFF;
>   casing-opacity: 0.8;
>  }
> way["zone:traffic"="BE:rural"]::built-up_area
>  {z-index: -5;
>   casing-width: 7;
>   casing-color: #000000;
>   casing-opacity: 0.8;
>  }
> way["source:maxspeed"=zone30]::zoneXX
>  {z-index: -6;
>   casing-width: 10;
>   casing-color: brown;
>   casing-opacity: 0.8;
>  }
> way["source:maxspeed"=zone50]::zoneXX
>  {z-index: -6;
>   casing-width: 10;
>   casing-color: brown;
>   casing-opacity: 0.8;
>  }
> way["source:maxspeed"=zone70]::zoneXX
>  {z-index: -6;
>   casing-width: 10;
>   casing-color: brown;
>   casing-opacity: 0.8;
>  }
> node[note]
>  {text: note;
>   text-color: red;
>   text-halo-radius: 3;
>   font-size: 16;
>  }


Jo


2012/11/26 Marc Gemis <marc.gemis at gmail.com>

> Jo, can I ask you why you do not follow the description of
> http://wiki.openstreetmap.org/wiki/Key:source:maxspeed ?
>
> which states e.g.
>
> <country_code>:<context> (where the speed limit is defined by a particular
> context, for example urban/rural/motorway/etc.)
>
> Where the speed limit is indicated by special speed limits signposted at
> the border they can be tagged as follows:
> maxspeed=30 and source:maxspeed=DE:zone - Proposed by a majority on the
> mailing list
> maxspeed=30 and source:maxspeed=DE:zone30 - Most used value
> maxspeed=30 and source:maxspeed=DE:zone:30 - Second most used value
>
>
> I've been using this scheme for quite a while now.
>
>
> regards
>
> m
>
>
> On Mon, Nov 26, 2012 at 1:00 PM, <talk-be-request at openstreetmap.org>wrote:
>
>> Zones 30 in Belgium
>
>
>
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