<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Just as an addendum, you may find false positives like this one <a href="https://maproulette.org/mr3/challenge/3588/task/11055949" class="">https://maproulette.org/mr3/challenge/3588/task/11055949</a> where a service road connects to residential roads in a perfectly valid way. You should mark these as ’not an issue’ in MapRoulette.<div class=""><br class=""></div><div class="">Martijn<br class=""><div><br class=""><blockquote type="cite" class=""><div class="">On Feb 4, 2019, at 9:36 AM, Martijn van Exel <<a href="mailto:m@rtijn.org" class="">m@rtijn.org</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><meta http-equiv="Content-Type" content="text/html; charset=utf-8" class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Hi all, <div class=""><br class=""></div><div class="">Per Matthew Darwin’s request on Twitter, my team prepared a MapRoulette challenge for ‘highway class flip-flops’. What does this mean? Consecutive ways that have a suspicious change from one highway= value to another and then back to the former. This happens sometimes when mappers change the highway= value for some way but miss a bridge somewhere. An example is <a href="https://www.openstreetmap.org/way/53514358#map=19/51.23309/-116.65373" class="">https://www.openstreetmap.org/way/53514358#map=19/51.23309/-116.65373</a> where the bridge is marked as residential but the two adjoining ways are marked as unclassified.</div><div class=""><br class=""></div><div class="">You can find the challenge at <a href="https://maproulette.org/mr3/challenge/3588" class="">https://maproulette.org/mr3/challenge/3588</a> and your feedback is very welcome.There are ~300 tasks.</div><div class=""><br class=""></div><div class="">If you have other ideas for challenges to clean up / review existing data let me know and we can discuss.</div><div class=""><br class=""></div><div class="">Martijn</div></div>_______________________________________________<br class="">Talk-ca mailing list<br class=""><a href="mailto:Talk-ca@openstreetmap.org" class="">Talk-ca@openstreetmap.org</a><br class="">https://lists.openstreetmap.org/listinfo/talk-ca<br class=""></div></blockquote></div><br class=""></div></body></html>