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<div>Hm, i will check out which should be the correct tagging of a road which are forbidden i.e for lorries of a specific weight and for all other cars this road is allowed. Regarding this specific street i have made a number of tests, moving the destination point on my garmin further down the road. And during these tests i found some points, where the garmin refuses to use the short way and proposes a longer detour. Might be, that the device only check access=destination without the other rules ?</div><div><br></div><div><br></div><div><br></div><div id="composer_signature"><div style="font-size:85%;color:#575757">Von meinem Samsung Gerät gesendet.</div></div><br><br>-------- Ursprüngliche Nachricht --------<br>Von: Gerd Petermann <gpetermann_muenchen@hotmail.com> <br>Datum: 26.09.2019 10:31 (GMT+01:00) <br>An: Development list for mkgmap <mkgmap-dev@lists.mkgmap.org.uk> <br>Betreff: Re: [mkgmap-dev] crude routing of my gpsmap 276Cx <br><br>Hi Manfred,<br><br>Just to make that clear:<br>I think that the long route is correct given the tags of the mentioned ways if the vehicle is a car. So, your first goal should be to correct the tagging.<br><br>Gerd<br><br>________________________________________<br>Von: mkgmap-dev <mkgmap-dev-bounces@lists.mkgmap.org.uk> im Auftrag von manfred.haiduk <manfred.haiduk@freenet.de><br>Gesendet: Donnerstag, 26. September 2019 10:20<br>An: Development list for mkgmap; dd8kq@gmx.de<br>Betreff: Re: [mkgmap-dev] crude routing of my gpsmap 276Cx<br><br>Thank you for the information. I will try this later this week and keep you informed. BTW, i can remember some years ago when i have not used OSM Data on may Garmin but on a smartfone navigation system with OSM, there was the same fault on that device with a long detour. But after some data updates the routing failure on that device was gone<br><br><br><br>Von meinem Samsung Gerät gesendet.<br><br><br>-------- Ursprüngliche Nachricht --------<br>Von: Gerd Petermann <gpetermann_muenchen@hotmail.com><br>Datum: 26.09.2019 09:52 (GMT+01:00)<br>An: Development list for mkgmap <mkgmap-dev@lists.mkgmap.org.uk>, dd8kq@gmx.de<br>Betreff: Re: [mkgmap-dev] crude routing of my gpsmap 276Cx<br><br>Hi Manfred,<br><br>I don't know the actual signs and I don't care if the tagging is right or wrong. At least the combination of bicycle=yes and foot=no on https://www.openstreetmap.org/way/25285589 looks very wrong:<br>bicycle=yes<br>fixme=check access rules<br>foot=no<br>highway=tertiary<br>maxspeed=30<br>maxweight=7.5<br>name=Brandenberger Straße<br>ref=K 30<br><br>Anyway, it seems that mkgmap sets the correct flags for the road, the Garmin algo seems to simply ignore the "no-through-route" flag when the detour is<br>too long. I've tried this with a sample file where the shortest route goes through a road with access=destination + highway=residential and the longer route<br>just has ways with highway=residential. As long as the detour is rather small Mapsource takes the longer (allowed) route when using the car profile.<br>All other profiles seem to always use the shorter route. So, either something is wrong in the map data (problem in mkgmap) or something is wrong in the Garmin algo.<br><br>Please try if you can reproduce the long route using a map created with mkgmap r4292 and the default style coming with that version.<br><br>Gerd<br><br>________________________________________<br>Von: mkgmap-dev <mkgmap-dev-bounces@lists.mkgmap.org.uk> im Auftrag von manfred.haiduk <manfred.haiduk@freenet.de><br>Gesendet: Donnerstag, 26. September 2019 09:14<br>An: Development list for mkgmap; dd8kq@gmx.de<br>Betreff: Re: [mkgmap-dev] crude routing of my gpsmap 276Cx<br><br><br><br>For your additional information, i think the tag access=destination is to be seen with the additional tag for weight limit, as the street is not allowed to be used for cars heavier than 7.5 tons<br><br>Von meinem Samsung Gerät gesendet.<br><br><br>-------- Ursprüngliche Nachricht --------<br>Von: Gerd Petermann <gpetermann_muenchen@hotmail.com><br>Datum: 26.09.2019 08:55 (GMT+01:00)<br>An: Development list for mkgmap <mkgmap-dev@lists.mkgmap.org.uk>, dd8kq@gmx.de<br>Betreff: Re: [mkgmap-dev] crude routing of my gpsmap 276Cx<br><br>Hi Manfred,<br><br>I tried to reproduce your results with BC but I get a different route.<br>at the moment I wonder why Mapsource shows the shorter route when using car/motorcycle. The ways<br>https://www.openstreetmap.org/way/25285586 and https://www.openstreetmap.org/way/25285589<br>both have the tag access=destination, so my understanding is that cars should not be routed through them, but this seems to be ignored. I'll have to find out why.<br><br>Gerd<br><br>________________________________________<br>Von: DD8KQ <dd8kq@gmx.de><br>Gesendet: Mittwoch, 25. September 2019 14:53<br>An: Development list for mkgmap; Gerd Petermann<br>Betreff: Re: [mkgmap-dev] crude routing of my gpsmap 276Cx<br><br>Hi Gerd<br><br>it's really weird. Trying this with MapSource you are right, there is no<br>long detour. But, then, i tried the same with BaseCamp and you know<br>what, BaseCamp produced on my Laptop this detour, see attached picture<br>Test2.<br><br>And just for testing, i tried the same area on a Smartfone running the<br>Navigator App with OSM maps, and this progromm is routing the same<br>detour, see picture screenshot.<br><br>So for me there must be something in the OSM Source regarding the street<br>K30 which will cause the strange routing. But my experience is too small<br>to figure it out<br><br>Am 25.09.2019 um 11:12 schrieb Gerd Petermann:<br>> Hi Manfred,<br>><br>> No idea. I cannot reproduce the result with the default style in Mapsource. I tried with vehicle car as well as with cycling or pedestrian, I never get the long detour.<br>> Can you reproduce it with Mapsource? If yes, please provide more details about the routing settings.<br>><br>> ________________________________________<br>> Von: mkgmap-dev <mkgmap-dev-bounces@lists.mkgmap.org.uk> im Auftrag von DD8KQ <dd8kq@gmx.de><br>> Gesendet: Dienstag, 24. September 2019 21:58<br>> An: Development list for mkgmap<br>> Betreff: [mkgmap-dev] crude routing of my gpsmap 276Cx<br>><br>> Hi<br>><br>> may be that somebody has an idea why the routing of my gpsmap 276Cx is<br>> so crude. I'm using almost the standard style to build my own garmin<br>> maps. And as the example is mostly in the vicinity of my hometown,i had<br>> not experienced this error before, as i need not a gps in my home area.<br>> If you look at picture 20190924_173131.jpg this is a routing i would<br>> expect to the destination, short and fast. If you look at<br>> 20190924_173229.jpg, the destination is only a few meters away from the<br>> first one, the routing is nearly three times more than before with the<br>> same settings on my device. I would appreciate any advice what to change<br>> or any hint where i can look for why this could happen.<br>><br>> Btw, if i change the setting to use bicycle routing, the device will use<br>> for both destinations the expected way<br>><br>> --<br>><br>> #####################################################<br>><br>> Viele Grüße und 73 de Manfred Haiduk, DD8KQ<br>> e-mail mhaiduk@t-online.de dd8kq@gmx.de<br>><br>> #####################################################<br>><br>> _______________________________________________<br>> mkgmap-dev mailing list<br>> mkgmap-dev@lists.mkgmap.org.uk<br>> http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev<br>><br>--<br><br>#####################################################<br><br> Viele Grüße und 73 de Manfred Haiduk, DD8KQ<br> e-mail mhaiduk@t-online.de dd8kq@gmx.de<br><br>#####################################################<br><br>_______________________________________________<br>mkgmap-dev mailing list<br>mkgmap-dev@lists.mkgmap.org.uk<br>http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev<br>_______________________________________________<br>mkgmap-dev mailing list<br>mkgmap-dev@lists.mkgmap.org.uk<br>http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev<br>_______________________________________________<br>mkgmap-dev mailing list<br>mkgmap-dev@lists.mkgmap.org.uk<br>http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev<br></body></html>