<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>I think using it for pipes and waterways is a good thing, especially when used with the way's inherent direction.</div><div><br></div><div>There are pipes, canals, and other waterways where both directions occur, but like the incline tag, it is best to specify what direction the way's inherent direction implies in some circumstances (like near very convoluted river, canal, and drain systems found in rainy /low lying places).<br><br>Javbw</div><div><br>On Sep 8, 2015, at 6:04 PM, Warin <<a href="mailto:61sundowner@gmail.com">61sundowner@gmail.com</a>> wrote:<br><br></div><blockquote type="cite"><div>
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<div class="moz-cite-prefix">On 8/09/2015 12:43 PM, johnw wrote:<br>
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<div class="">On Sep 8, 2015, at 9:46 AM, Warin <<a moz-do-not-send="true" href="mailto:61sundowner@gmail.com" class=""></a><a class="moz-txt-link-abbreviated" href="mailto:61sundowner@gmail.com">61sundowner@gmail.com</a>> wrote:</div>
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<div class=""><span style="font-family: Helvetica; font-size:
13px; font-style: normal; font-variant: normal;
font-weight: normal; letter-spacing: normal; line-height:
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auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;
background-color: rgb(255, 255, 255); float: none;
display: inline !important;" class="">Flow direction is
the best of these (so far). It is descriptive of what is
to be tagged.<span class="Apple-converted-space"> </span></span></div>
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<div>What do they use for pipelines? I imagine there is some tag
based on the way direction that can indicate flow. </div>
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I don't know. But I do know of one group of pipelines that are used
in doth directions;<br>
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When electricity generation is required they flow water down hill to
power electrical turbines. <br>
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When there is an excess of electrical generation they pump water
uphill. <br>
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From the pipeline wiki this looks to be used ... <br>
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<tt style="background:#DDE;white-space:nowrap" dir="ltr"><a href="https://wiki.openstreetmap.org/w/index.php?title=Key:flow_direction&action=edit&redlink=1" class="new" title="Key:flow direction (page does not exist)">flow_direction</a>=forward/backward/both</tt>
.. note that flow_direction is undocumented. <br>
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