<div dir="ltr">Hi all,<div><br></div><div>thanks for all replies!</div><div><br></div><div>to Michael Reichert: yes, this is exactly what I want to tag.</div><div><br></div><div>The ones that inspired the original email are for grooved rails and look like this: <a href="https://goo.gl/photos/KtiFVMHAtfpLsLmF8">https://goo.gl/photos/KtiFVMHAtfpLsLmF8</a></div><div>They are more massive because the water has to be collected and drained and the movable parts have to be separated from the covering material (asphalt concrete, paving stones, etc).</div><div><br></div><div><br></div><div class="gmail_extra"><div class="gmail_quote">2015-06-23 0:44 GMT+02:00 JJJ Wegdam <span dir="ltr"><<a href="mailto:jwegdam@me.com" target="_blank">jwegdam@me.com</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">(continuing on the first part of my mail which I already sent by accident)<br> <br> Additional there are two more joints without the possibility of expansion. We can define:<br> • metallurgical welds<br> • glued insulated joints<br> <br> These links provide the information and graphics from the book:<br> <a href="http://puu.sh/iyZLs/9a7d6ab8e0.jpg" rel="noreferrer" target="_blank">http://puu.sh/iyZLs/9a7d6ab8e0.jpg</a><br> <a href="http://puu.sh/iyZMR/e3b874c9bb.jpg" rel="noreferrer" target="_blank">http://puu.sh/iyZMR/e3b874c9bb.jpg</a><br> <a href="http://puu.sh/iyYSE/c9742ad52a.jpg" rel="noreferrer" target="_blank">http://puu.sh/iyYSE/c9742ad52a.jpg</a><br> <br> More information on the book can be found at <a href="http://esveld.com/MRT.html" rel="noreferrer" target="_blank">http://esveld.com/MRT.html</a>.<br> <br> Depending on what Michael needs, I advice him to choose expansion joint or expansion device (the difference is in the occurence of a glide plane). I think that "adjustment switch" is too specific for the British situation.<br><div class="HOEnZb"><div class="h5"><br></div></div></blockquote><div><br></div><div>I think we should find a tagging solution to cover all of these cases.</div><div><br></div><div><br></div><div>The terms in Jeroen's book seem pretty clear and logical, so I'd like to use these.</div><div><br></div><div>Doing so, we could start with:</div><div><br></div><div>railway=expansion_device (with a glide plane, e.g. my photo )</div><div><br></div><div>railway=expansion_joint (type of expansion joint should be subtagged, maybe there are more than just fishplated expansion joints)</div><div><br></div><div>railway=insulation_joint (again with subtagging of type/method/material)</div><div><br></div><div>railway=bridge_transition_structure (well, we should discuss if this can be a subtype of "expansion_device" and if the type of possible movement should always be subtagged)</div><div><br></div><div>railway=joint (normal (fishplated) joint, I hope no one wants to tag those, except for significant points (switch beginning and end, change in rail profile, etc))</div><div><br></div><div>railway=weld, weld="type" (same remark as for normal joints)</div><div><br></div><div><br></div><div>What do you think?</div><div><br></div><div>-Martin</div><div> </div></div></div></div>