alt Hacker NewsYet it's unclear to what extent they actually use them - on freeway adjacent bike paths that have different gradients than the adjacent freeway (typically steeper), it's very clear Garmin is using data referencing the freeway.
Yet it's unclear to what extent they actually use them - on freeway adjacent bike paths that have different gradients than the adjacent freeway (typically steeper), it's very clear Garmin is using data referencing the freeway.
They must be doing something that integrates user-contributed data because one quirk of their course planner[1] is an out-and-back plan along the same course will have non-coincident elevation profiles, even along trails where it can't be explained by switching sides of the road.
1: And their planner, in general, is garbage. I usually take the output file and run it through an AI system to fix it so it doesn't try to cue me to pointlessly switch to the other side of a major road and ride on the sidewalk.