Debugging reasons for truck re-route

[kochis]

I'm seeing an instance where truck routes are being re-routed off the main highway, and trying to understand why.

Origin: 42.5525176,-114.5271132
Destination: 46.32539,-119.30359

Route: https://valhalla.openstreetmap.de/directions?profile=truck&wps=-114.4603729248047%2C42.563448700516524%2C-119.27925109863283%2C46.27958036616893

I would expect it to stay on the main highway, as the car route does:

I've tried almost every configuration of costing options that might be causing this, and it never seems to take that route, so I'm assuming it's something with the data. Interestingly, it does use the highway in the other direction.

I've basically narrowed it down to something in this relation (12139901) https://www.openstreetmap.org/relation/12139901.

I've also pulled out any of the nodes with tags here. nodes.json

I'm not too familiar with how the data is being leveraged in the routing, so hoping someone can help me understand how to figure out the case for the issue. Thanks!

[nilsnolde]

Can you try the same query but with „hgv_access_penalty: 0.0“ in truck costing options? If that works, then there’s somewhere a hgv=no edge.

[kochis]

It looks like this section has hgv: no

https://www.openstreetmap.org/way/684871963

[kochis]

Setting hgv_access_penalty = 0.0 did not change the route.

This how I am setting it (to make sure I'm doing it correctly)

/route?json={"locations":[{"lat":42.5525176,"lon":-114.5271132},{"lat":46.32539,"lon":-119.30359}],"costing":"truck","costing_options":{"truck":{"hgv_no_access_penalty":0}}}

[kochis]

I guess this change is not in the latest release? #4650

[nilsnolde]

Nope, we’re always assuming people test with master. We should put that in the issue template..

So it works with master right?

[kochis]

So it works with master right?

I'll have to throw a build together and get back to you 😅

But assuming that's the case, it seems like the hgv: no on this route segment is causing the issue: https://www.openstreetmap.org/way/684871963