I've seen it used on navigable canals to indicate traffic direction.
If there is a route relation I think it should be indicate with
forward/backward roles.
If not then for clarity, maybe something like traffic_flow=backwards?
Adding a route relation would be preferable though.
Dave F.
On 17/09/2016 13:20, Andy Townsend wrote:
I've certainly used "oneway=yes" on inland waterways to document
signed traffic flow control, so a blanket removal would make no sense.
There may be places where a previous mapper has tried to use it in
error to indicate water flow direction, but you'd need to ask whoever
the previous mapper was in each case (or use a bit of common sense).
Cheers,
Andy
*From: *LeTopographeFou
*Sent: *Saturday, 17 September 2016 13:17
*To: *tagging@openstreetmap.org
*Reply To: *Tag discussion, strategy and related tools
*Subject: *[Tagging] Use of oneway=yes on waterways
Hi
According to the waterway=stream wiki page
(http://wiki.openstreetmap.org/wiki/Tag:waterway%3Dstream):
/If a flow exists, the direction of the way must be downstream
(i.e. the way direction follows the flow)/
As of today there is a very small percentage of streams (17593 ways
according to taginfo, 0.23%) with oneway=yes.
Is there any undocumented purpose? Is it ok and safe to delete
oneway=yes tags for streams?
The same question can apply to drains, ditches, canals...
Yours,
--
LeTopographeFou
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