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Cliff Flood
7bdeff06a9
The pack shipped a flat 90 m. Sampling a DEM at all 336 camera sites puts the network between 76 m (Queens Quay) and 209 m (Keele & Steeles), mean 116 m: a median error of 14 m against the old value, 88 m at the 90th percentile and 119 m at worst, with the Allen Road cameras — 170-197 m — the furthest underground. No constant fits a city with that much relief; the precomputed ground heights are what place a camera properly, and until this pack has them the prior is the fallback for a sidecar miss or an edited pose. The mean is at least wrong in both directions rather than only one. This value is not part of the served pose, so it changes no pose hash and invalidates no precomputed entry.