<div dir="ltr"><div><div><div><div><div><div>Using the Common Japanese Junction.</div><div><a href="https://www.openstreetmap.org/#map=16/36.2414/138.8943" target="_blank">https://www.openstreetmap.org/#map=16/36.2414/138.8943</a></div><br>I ran a route from the highway:<br><a href="https://www.openstreetmap.org/directions?engine=mapzen_car&route=36.23997%2C138.89054%3B36.24526%2C138.89465#map=17/36.24221/138.89378">https://www.openstreetmap.org/directions?engine=mapzen_car&route=36.23997%2C138.89054%3B36.24526%2C138.89465#map=17/36.24221/138.89378</a><br><br></div>I ran a route to the highway<br><a href="https://www.openstreetmap.org/directions?engine=mapzen_car&route=36.24529%2C138.89454%3B36.24077%2C138.89946#map=17/36.24294/138.89512">https://www.openstreetmap.org/directions?engine=mapzen_car&route=36.24529%2C138.89454%3B36.24077%2C138.89946#map=17/36.24294/138.89512</a><br><br></div>Do these instructions look correct? I am sure more interchange sign information could be added to the data to give the user more information to help with confusion. If there was mapillary at interchange I could add more of the interchange information.<br></div>Apologies - I am just trying to understand what the issue is with respect to user guidance confusion. (and I do not know Japanese)<br><br></div>Thanks,<br></div>Duane<br><br></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Jun 1, 2016 at 10:20 PM, John Willis <span dir="ltr"><<a href="mailto:johnw@mac.com" target="_blank">johnw@mac.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="auto"><div><br></div><div><br><div><br><br>Javbw</div><span class="">On Jun 2, 2016, at 7:59 AM, Duane Gearhart <<a href="mailto:duane@mapzen.com" target="_blank">duane@mapzen.com</a>> wrote:<br><br></span></div><span class=""><blockquote type="cite">Can you give an example route using <a href="http://osm.org" target="_blank">osm.org</a> of where there is an issue?</blockquote><br></span><div>I will re-read the tagging pages to make sure I am not confused, but if a "motorway_junction" = exit, and there is no implicit tag for entrances, this works fine in most places because there is usually a entrance-exit pair for each direction of travel. </div><div><br></div><div>I assume because the ways are connected with a shared node that routing software can tell where to turn and where to go, but since the junction is used as a rendered label of the intersection, that visually might be confusing if there is an exit/entrance only in one direction on the motorway or if there is an entrance only. </div><div><br></div><div>In the freeway system of America, the entrances and exits will be 4 separate motorway_links that separately leave a normal road to join the motorway, but that is not expected in Japan - a single entrance-exit intersection for all directions of travel is common - so having a separated entrance or a junction with an exit for only one direction of travel is rendered confusingly. I have also come across junctions with named sections (gate 1&2) handling their own entrance and exit _links under the guise of being a single "junction". </div><div><br></div><div>Common Japanese Junction.</div><div><a href="https://www.openstreetmap.org/#map=16/36.2414/138.8943" target="_blank">https://www.openstreetmap.org/#map=16/36.2414/138.8943</a></div><div><br></div><div>Common US underpass Junction </div><div><a href="https://www.openstreetmap.org/#map=17/32.93673/-117.11117" target="_blank">https://www.openstreetmap.org/#map=17/32.93673/-117.11117</a></div><div><br></div><div>Orphaned US entrance. </div><div><a href="https://www.openstreetmap.org/#map=19/32.72472/-117.15108" target="_blank">https://www.openstreetmap.org/#map=19/32.72472/-117.15108</a> </div><div>(This is for 163 north, entrance on the other side is for 5 south or 94 west) </div><div><br></div><div>Separated Japanese Junction (etc only, causes wrong way drivers because of separation) </div><div><a href="https://www.openstreetmap.org/#map=15/36.3073/139.0912" target="_blank">https://www.openstreetmap.org/#map=15/36.3073/139.0912</a></div><div><br></div><div>Japanese Exit only southbound (C22). Entrance only northbound. (Orphaned exit & orphaned entrance)This was the junction that had me question why the entrance _link had a junction tag on it. </div><div><br></div><div>The tollway is in a tunnel under the primary road. </div><div><br></div><div><a href="https://www.openstreetmap.org/#map=16/35.6639/139.6882" target="_blank">https://www.openstreetmap.org/#map=16/35.6639/139.6882</a></div><div><br></div><div>Weird junction that has 2 "gates" that lead to different major roads to go to two different tourist attractions (Mt Fuji & Hakone Caldera) but all under the same junction name and reference (ref=7) instead of the normal separation of close junctions (ref=7 & ref=7-1) </div><div><br></div><div><a href="https://www.openstreetmap.org/#map=15/35.2952/138.9500" target="_blank">https://www.openstreetmap.org/#map=15/35.2952/138.9500</a></div><div><br></div><div><br></div><div><br></div><div><br></div></div><br>_______________________________________________<br>
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