[OSM-talk] river - stream

[80hnhtv4agou at bk.ru]

>i guss what i am saying, add a tunnel is wrong, when the road is on the bridge, and the drop down box
 
says culvert. again i am only seeing the ID map.
> 
>i just tried it, it only says add a tunnel, then river is under bridge. 
>
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>>Monday, June 8, 2020 7:00 AM -05:00 from Mateusz Konieczny via talk < talk at openstreetmap.org >:
>> 
>>Is there anything wrong with that?
>> 
>> 
>>Jun 8, 2020, 13:57 by talk at openstreetmap.org:
>>>>in the ID editor, if you draw a stream - river  line, and it crosses a road, you get a warning, with the suggestion
>>>> 
>>>>add a bridge or tunnel. 
>>>> 
>>>>>Monday, June 8, 2020 5:13 AM -05:00 from Martin Koppenhoefer < dieterdreist at gmail.com >:
>>>>> 
>>>>>Am Sa., 6. Juni 2020 um 18:02 Uhr schrieb Dave F via talk < talk at openstreetmap.org >:
>>>>>>Do you have an example?
>>>>>> 
>>>>> 
>>>>> 
>>>>>A simple example for a tunnel (here subway) on a bridge would be this:
>>>>>https://www.openstreetmap.org/way/757824513
>>>>>https://fr.wikipedia.org/wiki/Pont_Morand
>>>>> 
>>>>> 
>>>>> 
>>>>>>Whether it's a bridge or tunnel is fairly easily defined by determining
>>>>>>which is taking the load.
>>>>>>If a tunnel's structure was removed, would whitewater's above it
>>>>>>collapse? If 'yes' then it's a tunnel.
>>>>> 
>>>>> 
>>>>> 
>>>>>what I wrote was that - according to some technical definitions - a tunnel must not have something above it, it may be sufficient that it is closed and long enough. I am not sure if we share these definitions in OSM.
>>>>>According to the current wiki, "a tunnel is an underground passage for a road or similar." and also: " tunnel =* is used for roads, railway line, canals etc that run underground (in  tunnel ). "  This doesn't appear to be exhaustive / complete, tunnels could also run underwater, above ground and potentially in the future even in space, no?
>>>>>Many current underwater tunnels are also "underground", as they are often running in a man made structure (embankment like) on the ground or below the water body/river in the ground
>>>>> 
>>>>> 
>>>>> 
>>>>>Cheers
>>>>>Martin
>>>>> 
>>>>> 
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>>>> 
>>>> 
>>>> 
>>> 
>>> 
>>> 
>>> 
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