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Rework of inland-waterway routing is on my agenda: https://github.com/abrensch/brouter/issues/233
I came across some issues on seamark:type=cable_overhead:
https://taginfo.openstreetmap.org/searc … e_overhead
According to https://wiki.openstreetmap.org/wiki/Sea … rk_Objects
only these attributes are valid:
- category
- clearance_height
- clearance_height_safe
Help consolidating tags is welcome!
Last edited by kannix (2020-05-27 14:38:03)
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seamark:type=cable_overhead ← needed
seamark:cable_overhead:category=transmission ← uninsulated cables | power ← (isolated) cable See https://wiki.openstreetmap.org/wiki/Sea … 8CATCBL.29
seamark:cable_overhead:clearance_height_safe=* ← valid, renders a node and a way as well on the standard map
With a height less then noted, a safe passage is guaranteed.
seamark:cable_overhead:clearance_height=* ← valid, renders a node and a way as well on the standard map
"This height is the physical height, passage with this height is only possible when the power is switched off." ← My interpretation
seamark:cable_overhead:vertical_clearance_safe ← is NOT valid, does not render (264 used as node in Germany)
and should be replaced by seamark:cable_overhead:clearance_height_safe=*
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Thanks for spotting this. I discovered that the renderer, wiki & INT-1 preset all used different values, hence the problem in the database. I have fixed the preset & edited the wiki & database to bring all into line with the renderer.
I made the corrections yesterday evening, so all the corrections in the database should have rendered by now
Malcolm Herring, Developer
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Well done, thanks a lot!
Other issue:
There should be no 'clearance_height_safe'
https://taginfo.openstreetmap.org/keys/ … eight_safe
(see https://wiki.openstreetmap.org/wiki/Sea … Clearances )
Last edited by kannix (2020-05-28 17:08:42)
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Some authorities (at least the Flemish) give two values for the height.
One to be considered as "safe" or permitted and a higher value as the absolute limit. (In the example hereunder: 9.08 metre and 9.38 metre.)
An example source: https://www.visuris.be/default.aspx?pat … B011100107
May be seamark:bridge:clearance_height_safe=* should be added to the wiki?
Or do not add to the wiki and just use the low / safe value to tag the bridges?
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just found this discussion paper:
https://iho.int/mtg_docs/com_wg/NCWG/NC … ridges.pdf
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an other issue: 'maxdraft', 'maxdraught', 'draft'
consolidation needed, please add comments:
https://wiki.openstreetmap.org/wiki/Tal … imitations
‘maxdraft’ is my favorite since ‘draft’ denotes the vessel and not the waterway...
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