Re: [OSM-dev] Directionality of lanes

[rupert THURNER]

Just out of interest, how does navigation software get the information? If
a road is one way it has a direction attached, and the general rule it
should get from a different site?

rupert
 Am 28.03.2012 09:55 schrieb "Peter Körner" :

> Am 27.03.2012 12:14, schrieb Dietrich Opitz:
>
>>
>> Hello
>>
>> Thank you for the information. I didn't wanted to add the obivous to the
>> database.
>> I just missed the default settings per country and was wondering how to
>> get this type of information from the database.
>>
>
> I don't think you can get it out of the osm-database as it isn't something
> that belongs to osm. Better build a custom database (or better: list) of it
> or query wikipedia or some other ressource.
>
> Not every information has to be stored in the osm database.
>
> Peter
>
>
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Re: [OSM-dev] Directionality of lanes

[Peter Körner]

Am 27.03.2012 12:14, schrieb Dietrich Opitz:


Hello

Thank you for the information. I didn't wanted to add the obivous to the
database.
I just missed the default settings per country and was wondering how to
get this type of information from the database.


I don't think you can get it out of the osm-database as it isn't 
something that belongs to osm. Better build a custom database (or 
better: list) of it or query wikipedia or some other ressource.


Not every information has to be stored in the osm database.

Peter


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Re: [OSM-dev] Directionality of lanes

[Dietrich Opitz]

Hello

Thank you for the information. I didn't wanted to add the obivous to the 
database.
I just missed the default settings per country and was wondering how to 
get this type of information from the database.


Thank you
---
Dietrich



Am 27.03.2012 12:09, schrieb Hartmut Holzgraefe:

On 03/27/2012 11:50 AM, Pieren wrote:


But since directionality of lanes is never changing (although Samoa
did it in 2009),


Sweden did it somewhere in the 1970s ...

but yes, it is a very rare event and when it happens it is easier
to change the country default in one place than to re-tag every
single highway object in that country ...





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Re: [OSM-dev] Directionality of lanes

[Hartmut Holzgraefe]

On 03/27/2012 11:50 AM, Pieren wrote:


But since directionality of lanes is never changing (although Samoa
did it in 2009),


Sweden did it somewhere in the 1970s ...

but yes, it is a very rare event and when it happens it is easier
to change the country default in one place than to re-tag every
single highway object in that country ...

--
hartmut

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Re: [OSM-dev] Directionality of lanes

[Pieren]

On Tue, Mar 27, 2012 at 11:19 AM, Jochen Topf  wrote:

This thread shouldn't continue on the dev-mailing-list...

> c) do not tag directionality of highways. it would add millions of tags to OSM
>   with no use because it is obvious what the right value is for each country

The wiki has a proposal to describe default values per country in a
'default' relation type:
http://wiki.openstreetmap.org/wiki/Relations/Proposed/Defaults

But since directionality of lanes is never changing (although Samoa
did it in 2009), I could imagine that navigation softwares can
hardcode the value for each country.

Pieren

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Re: [OSM-dev] Directionality of lanes

[Jochen Topf]

Hi!

a) please do not use HTML mail on the list
b) there are no official tags in OSM
c) do not tag directionality of highways. it would add millions of tags to OSM
   with no use because it is obvious what the right value is for each country

You can see here http://taginfo.openstreetmap.org/keys/lht_ref that lht_ref is
used only once and not documented, rht_ref a bit more often, but also
undocumented. Both are only used in the US. Whatever lht_ref/rht_ref is, it
doesn't seem to be what you are looking for.

Jochen

On Tue, Mar 27, 2012 at 09:35:37AM +0200, Dietrich Opitz wrote:
> Date: Tue, 27 Mar 2012 09:35:37 +0200
> From: Dietrich Opitz 
> To: dev@openstreetmap.org
> Subject: [OSM-dev] Directionality of lanes
> 
> 
>   
> 
> 
>   
>   
> 
> Hello
> 
> I have a question about official tags for the diretionality of
> lanes.
> 
>     You have  left-hand traffic (LHT) in countries like Japan,
> Australia, England
>     and RHT, right-hand traffic in other countries.
> 
> The tag "lht_ref" seems to indicate it, but I am not sure which is
> the right value.
> There is an other tag "rht_ref" as well, so I am confused.
> 
> Shouldn't it be a tag like:
> 
> name: traffic_direction  
> value:   lht / rht / open
> 
> The tag "direction" seems to be used for other purposes.
> 
> 
> With regards
> 
> Dietrich
> 
>   
> 
> 
> 

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-- 
Jochen Topf  joc...@remote.org  http://www.remote.org/jochen/  +49-721-388298


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