The answer: OsmAnd's custom-built Highway Hierarchy (HH) Routing. This isn't your standard routing engine; it's a ground-up redesign, meticulously engineered to overcome the unique challenges of providing advanced navigation on compact, offline-first map data.
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2-phase A* already uses many heuristics which don't always create an optimal route and still 5-10x slower.
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2026-02-26 11:00:00