Routing weird unnecessary turns through an intersection

[abclop99]

Routing engine

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

Routing Profile

Routing profile: Car Restriction: None?

Enabled:

• Fuel-efficient way
• Consider temporary limitations
• Minimal distance to recalculate route: 120m
• In case of reverse direction

Start and end points

An example route on openstreetmap.org.

Example route on osmand.net

Any route that goes through that intersection in that direction has the same problem.

Actual route

The actual route turns onto Leitrim Road then turns immediately back onto River Road.

It also shows up on osmand.net with "Short way" enabled

Expected route

The route should go straight through the intersection along River Road as on openstreetmap.org.

Also works properly on osmand.net without "Short way" enabled.

Maps you used (online or offline)

• [x] Offline maps offered within the OsmAnd app for download.
  • 2024-11-23 10:30
• [x] Online (tile / raster) maps
  • Whatever is currently on osmand.net

Your Environment

Device : HWBLA
Brand : HUAWEI
Manufacturer : HUAWEI
Model : BLA-L29
Product : BLA-L29
Build : BLA-L29 [10.0.0.159](http://10.0.0.159/)(C605E4R1P3)
Version : 10
App Version : OsmAnd~
Apk Version : 4.8.6 480603

Anything else?

No response

[Sonwon1]

I have seen this behavior more than once with Osmand. It is usually a map problem. I suggest again that the routing algorithm incorporate some common sense to see if the route makes sense.

Google maps does not exhibit this behavior, maybe they have better maps?