[Tagging] Use of oneway=yes on waterways

ajt1047 at gmail.com ajt1047 at gmail.com
Sun Sep 18 14:52:09 UTC 2016


On 18/09/2016 15:35, Malcolm Herring wrote:
> On 18/09/2016 11:14, Colin Smale wrote:
>> the values for "oneway" and all the "forward" and "backward" subkey
>> business are geometric directions related to the order of the nodes in
>> the OSM way,
>
> This is a dangerous dependency - if the way is reversed by another 
> mapper, the all "oneway" tags become invalid.
>

Maybe you're unfamilar with it, but this is exactly how oneway traffic 
on roads (and waterways) has worked since the year dot in OSM.  Changing 
this wouldn't necessarily be "dangerous", but it would be very confusing.

Cheers,

Andy




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