<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><br><br><div dir="ltr">sent from a phone</div><div dir="ltr"><br><blockquote type="cite">On 15. Jul 2020, at 00:49, Justin Tracey <j3tracey@gmail.com> wrote:<br><br></blockquote></div><blockquote type="cite"><div dir="ltr">If the festival is held at some date expressible using the opening
hours syntax, you could use the "open hours" tag[0] or add
conditions to the "access" tags</div></blockquote><br><div><br></div><div>I would not use opening_hours tag to represent the temporary existence of ways if this should mean that the ways are only there some weeks of the year. Similarly, access is about legal access and not physical existence. With the established schemes, you could use conditional on the highway, like highway:conditional=footway/service/path @ Time</div><div>it is not common, but someone else already had this idea as well:</div><div><a href="https://taginfo.openstreetmap.org/keys/highway%3Aconditional">https://taginfo.openstreetmap.org/keys/highway%3Aconditional</a></div><div><br></div><div><br></div><div>Cheers Martin </div></body></html>