<div dir="ltr"><div dir="ltr"></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">Le sam. 6 juil. 2019 à 16:39, Joseph Eisenberg <<a href="mailto:joseph.eisenberg@gmail.com">joseph.eisenberg@gmail.com</a>> a écrit :<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><br>
I don't know if the tag "direction=both" is used commonly with<br>
waterways. There's no wiki page to describe this tag, and the page<br>
Key:direction doesn't mention direction=both, though it's used 20,000<br>
times. More common is to add the tag "tidal=yes" to river estuaries<br>
which are clearly affected by the tides, though this does not<br>
necessary require reversal of water flow direction.<br></blockquote><div><br></div><div>It seems there was communication issues during past proposals.</div><div>flow_direction was introduced by sinks proposal in 2017 : <a href="https://wiki.openstreetmap.org/wiki/Tag:flow_direction%3Dboth">https://wiki.openstreetmap.org/wiki/Tag:flow_direction%3Dboth</a></div><div>direction=both was mentioned in waterway=pressurised proposal to solve situations when water goes down and can be pumped back in water pumped power plants</div><div><a href="https://wiki.openstreetmap.org/wiki/Talk:Proposed_features/Hydropower_water_supplies#Pumped_storage_power_plants">https://wiki.openstreetmap.org/wiki/Talk:Proposed_features/Hydropower_water_supplies#Pumped_storage_power_plants</a></div><div>Sounds like flow_direction is more suitable to deal with water flows</div><div><br></div><div>
<div>Apart from this issue, tidal=yes isn't the best option (recent
discussions had show that yes/no only tags should be completed with more
representative values)</div><div>What about flow_direction=tidal ?</div><div><br></div><div>All the best</div><div><br></div><div>François<br></div></div></div></div>