noradtux Posted August 7, 2021 Share Posted August 7, 2021 Description: ABRP seems to emphasise shorter routes even if it means using small roads instead of country road to save some 100m. Type: Both Link to Plan: https://abetterrouteplanner.com/?plan_uuid=5e2f8536-27a3-4e44-803c-89d0734e06a1 The screenshot shows the route suggested. I marked in red how I would expect the route to be, which is also the route Google Maps suggests. Is this related to road meta data or could the routing algorithm be tuned? 1 Link to comment Share on other sites More sharing options...
cent Posted August 14, 2021 Share Posted August 14, 2021 Hi @noradtux, I experienced the same. Also in cities it likes to use unusual routes which in the end take much longer than the ones Apple oder Google use. Link to comment Share on other sites More sharing options...
Skyhawk Posted August 15, 2021 Share Posted August 15, 2021 curious...if you click on those segments you think are unusual is there a speed limit defined &/or do they have you running far faster than you should be for those segments? I have a current question out to them about this issue that might be related to yours...I discovered a route taking me through some little towns, with a speed limit of 35MPH but planning for 71mph. I recon the bad speed data makes for a bad plan...making the unusual route seem much better than it really is. Link to comment Share on other sites More sharing options...
noradtux Posted November 11, 2021 Author Share Posted November 11, 2021 (edited) For the part on the left it shows the legal speed limit of 100kph. But that would be madness on that road. 3 meters wide with trees on both sides. For the part on the right assumed speeds are ok. These are the properties of that road: highway=unclassified maxspeed=100 maxspeed:practical=50 name=Am Staatsforst surface=asphalt Edited November 11, 2021 by noradtux Link to comment Share on other sites More sharing options...
noradtux Posted December 17, 2021 Author Share Posted December 17, 2021 The new alternate routing does a lot better regarding this issue Link to comment Share on other sites More sharing options...
Florian Posted July 17, 2022 Share Posted July 17, 2022 I have this issue as well. How can we declare a road as a "dirt road" to prevent routing algorithm to use it? Link to comment Share on other sites More sharing options...
sname5978 Posted February 21 Share Posted February 21 Use both. ABRP to plan, but I always plug it into the car nav and use that on the go. I’ll spot check things in ABRP if there’s sketchy parts where I worry about making it. Link to comment Share on other sites More sharing options...
sname5978 Posted February 22 Share Posted February 22 I have a current question out to them about this issue that might be related to yours...I discovered a route taking me through some little towns, with a speed limit of 35MPH but planning for 71mph. I recon the bad speed data makes for a bad plan...making the unusual route seem much better than it really is. momix http://indigocard.com activate Link to comment Share on other sites More sharing options...
Samuel-ABRP Posted March 15 Share Posted March 15 You can always check the speed limits on openstreetmap and correct them yourself if they are wrong: https://www.openstreetmap.org/#map=14/47.0782/8.2965 Click on edit top left and then sign in (with google for example). When you click on the roads you will then see all the tags it has, including speed limit. I just checked the original route, this has been fixed in the meantime. If you see any further issues or wrong routes please report them not here in the forum but via app/web: in settings scroll down to support & feedback, then report bug. We don't handle issues via forum anymore. Link to comment Share on other sites More sharing options...
