Bad routing in roundabout when route length is approx > 27km

[wolfy1339]

Routing engine

• OsmAnd's in-app offline routing
• Any online routing provider (YOURS, openrouteservice, OSRM, etc.)

Routing Profile

• car profile
• allow private access = enabled
• consider temporary limitiations = enabled
• fuel-efficient way = enabled
• No roads selected to be avoided

Start and end points

Start: 46.13367, -70.65624
End: 46.32927, -70.41533

Actual route

The route tells us to take the 4th exit on the roundabout which would mean going around the whole roundabout

Expected route

The routing should not go around the whole roundabout but take the first exit to stay on 127e Rue

Maps you used (online or offline)

• Offline maps offered within the OsmAnd app for download. February 2025 + Live updates.
• Online (tile / raster) maps

Your Environment

OsmAnd Version: 4.9.10
Android version: 15
Device model: Google Pixel 7 Pro

Anything else?

It seems that the router only gets confused when routes have a length of around 27km or more. when the route is less, the routing guidance is just fine

[yuriiurshuliak]

The bug was reproduce without live updates by following these steps:

1. Use OsmAnd offline routing with the car profile.
2. Enable:
   • Allow private access
   • Consider temporary limitations
   • Fuel-efficient way
3. Set the following coordinates:
   • Start: 46.13367, -70.65624
   • End: 46.32927, -70.41533
4. Observe the navigation instructions at the roundabout.

Issue: The route incorrectly suggests taking the 4th exit, causing a full circle around the roundabout instead of taking the 1st exit to stay on 127e Rue.

Possible Cause: This behavior is likely influenced by the "Short way" option being enabled.

For reference, here is the Web version of the route:
Web version of the route

OsmAnd~ 5.0.0#4400m, released: 2025-02-18