routing with some turning restrictions is broken

[hlinden]

http://osrm.at/8aw

leads to this route:

http://i.imgur.com/xxdPWal.png

...which of course is not correct. The other way round, the route is calculated as expected. There is no obvious error in the osm data, other routing solutions route correctly in both directions.

[DennisOSRM]

Thanks for reporting this. Seems to be an issue when a single road segment is the source of two is_only_* restrictions. Working on it.

[daganzdaanda]

Hi, i just happened to click around and came up with this: http://osrm.at/8Kd
Could be the same issue, or maybe not?

I think the tagging is correct, so at the node https://www.openstreetmap.org/node/289606224 one should be able tu turn left.
There is a no-u-turn relation, and a only_straight_on relation that may be playing into it.

ETA:
If you go the other way, it leads to this: http://osrm.at/8Kg
Weird, could not see anything in the data.

[daganzdaanda]

... I think this may be causing the hiccups: https://www.openstreetmap.org/relation/3483948
Compare http://osrm.at/8Kh and http://osrm.at/8Ki

If you switcht the direction, it looks as if it breaks at https://www.openstreetmap.org/relation/3483950

The OSM data seems to be OK, since Mapquest has no problem.

[DennisOSRM]

The issue has been identified. It will take a couple of days though until a patch is available.

[daganzdaanda]

cool, thanks!

[DennisOSRM]

Here's a quick update on the issue. And a picture says more than a thousand words:

Fix will arrive within the hour and the demo site should pull this in within the next 12--18 hours.

[DennisOSRM]

Fix is live on the demo site.

[daganzdaanda]

Thank you, great work!