Flowing direction does not really work with waterway especially
waterway=canal and it will not work with pipelines.

Better use an own tag like flow_direction=forward/backward/both/none or
similar. This way we will cover all three cases mentioned below.

cu fly

Am 20.06.2014 15:04, schrieb Bryan Housel:
> Also, It does say here:
> http://wiki.openstreetmap.org/wiki/Proposed_features/PipelineExtension#Pipelines
> 
> "direction: the medium inside a pipeline usually flows in one direction only. 
> make sure the direction of the man_made=pipeline way matches the direction of 
> the flow of the medium."
> 
> So my reading of that was that pipelines imply oneway=yes.
> 
> 
> 
> On Jun 20, 2014, at 8:32 AM, Bryan Housel <[email protected]> wrote:
> 
>> Hi, I’m the one who introduced this change.  I’m happy to roll it back if 
>> needed.
>>
>> I think I added pipeline to the list of tags that imply onewayness because 
>> of discussion here:
>> http://gis.19327.n5.nabble.com/Underground-Pipelines-td5376988.html
>>
>> Users can still explicitly tag pipelines as oneway=no if it is known that it 
>> is used in both directions.  Being in oneway_tags just means that onewayness 
>> is implied and that the feature is rendered with oneway markers.
>>
>> Thanks, Bryan
>>
>>
>>
>> On Jun 20, 2014, at 6:49 AM, bulwersator <[email protected]> wrote:
>>
>>> According to iD editor man_made=pipeline implies oneway=yes in the 
>>> direction of way[1]. It is imho a bad idea, because
>>> - it is not mentioned on 
>>> http://wiki.openstreetmap.org/wiki/Tag:man_made%3Dpipeline
>>> - direction of pipeline may be hard (I mapped some and in every case 
>>> direction was unknown)
>>> - many pipelines are bidirectional
>>>
>>> I plan to 
>>> - file bug for removing pipeline from list of oneway tags in iD
>>> - mention on wiki page for man_made=pipeline that oneway=yes or oneway=-1 
>>> may be applied for pipelines moving material in one direction.
>>>  
>>> [1] https://github.com/bhousel/iD/blob/master/js/id/core/oneway_tags.js
>>>
>>> _______________________________________________
>>> Tagging mailing list
>>> [email protected]
>>> https://lists.openstreetmap.org/listinfo/tagging
>>
> 
> 
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