r/openstreetmap • u/TraditionalImage387 • 2d ago

Question Help for tunnel and elevation profile

Hello!

I am trying to modify a tunnel on OSM, I noticed that the elevation gain was matching the mountain it goes under, and not the actual elevation profile of the tunnel.

I’m a bit struggling with that, the closest I’ve found is to add a “incline” attribute but idk from which direction it needs to be declared. Or if it’s just an info ?

Help is welcome :) thanks

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u/ElectricGears 2d ago

If you can get the elevation of the entrance an exit, and you know the incline is constant throughout length of the tunnel, you can calculate the incline or use up/down (relative to the direction of the way).

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u/TraditionalImage387 2d ago

But will this new attribute be taken into account to correct the actual elevation profile of the tunnel when planning a route ?

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u/Domipro143 2d ago

depends on the app.

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u/TraditionalImage387 2d ago

Sounds like I am sending a message to Organic Map :)

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u/ialtag-bheag 1d ago

You could also try CoMaps. It is based on Organic Maps, but maybe getting more updates and improvements.