It may be a problem, if there is a bug in the algorithm. Or, it may be the result of different algorithm priorities, comparing OSM routing and OsmAnd routing. Or, difference between algorithm and human priorities.

Another factor is that OSM data do not reflect all aspects leading to real route driving time. Algorithms may for the given route push the estimation toward real value or away from it. For other route the successfulness may be switched.

What is the relative difference in distance and time, between the provided route and the optimal one. Or what are absolute distances and times for both routes ?

Dne 23. listopadu 2020 7:24:27 Mark Howard <[email protected]> napsal:
Thanks for that Poutnik.
If I try the same trip using OpenStreetMap on my computer, it takes me the correct way.
Does that indicate a problem within OsmAnd?

On Monday, 23 November 2020 at 19:13:06 UTC+13 Poutnik wrote:
Check, if the roads and their connections are mapped OK in OSM.

The easiest way is probably generating the route by other software using OSM data. You may try e.g. http://brouter.de/BRouter-web/

Dne 23. listopadu 2020 5:47:38 Mark Howard <[email protected]> napsal:


Newbie question:
I have a new re-install of OsmAnd+ V3.8.4   on Android 8.1.0
Standard New Zealand map loaded.

If I try to travel from Petrie St, Rotorua to Esplanade, Kinloch, OsmAnd tries to route me down Tirohanga Rd (off State Highway 1 just south of the Waikato river) rather than than down Oruanui Rd (off State Highway 1 about 15km further south). Via Oruanui Rd is 3 kms shorter and 4 minutes quicker.

Do I have a setting wrong?

I initially tried editing some of the routing options, but it then took me WAY out of my way - by about 60km. I couldn't fix that (even after dismissing the route) and retrying without uninstalling and reinstalling the app.

Any help would be greatly appreciated.

BTW I love the clean look of the maps - please help me be able to use this app.
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