Climber inaccuracy

I've noticed that Climber can be very inaccurate at times.

As an example, Komoot projected a climb of about 1.5KM going up Taroko Gorge on the east coast of Taiwan. Hammerhead projected even more climb (~4.5KM) over about 15KM. The actual climb was about 500M.

Looking at the OSM basemap and the corresponding CycleOSM and Cycle Map overlay on openstreetmap.org for Taroko Gorge, the issue seems to be there are tunnels going up the gorge which are marked as such on the OSM base map. However CycleOSM and Cycle Map layers don't seem to take them into account. This seems to result in these rather exaggerated Komoot/Hammerhead/Climber elevation gain estimates.

Hammerhead Climber estimation really should take the tunnels into consideration rather than try to route over every single hill on the terrain.

Stanley Sun

March 20, 2024 04:39

@Spencer Out of curiosity, can you share the route that causes this issue?

Spencer Cheng

March 22, 2024 15:10

Planned route

https://www.komoot.com/tour/1046728756?share_token=a06IVx27BPEHlK3U5piHTKNS1q5o1kL5AaE17bXSC8EXNDXWqJ&ref=wtd

Actual route

https://www.komoot.com/tour/1073932702?share_token=aekYtiwhCyrM7UTukHFt3wqRVYVtKOBppIv47KVqVcVFsgBJmO&ref=wtd

Note that the 2 aren't an exact match but the main elevation gains are in the gorge once the route turns inland and it's up all the way until the turn around point at Tianxian. The nominal vs. actual elevation gains differs by a lot (>800M).

Climber inaccuracy

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