Today's adaptive H3 zones against the best-performing alternatives from the 2026-10-18 zone-accuracy runs. Numbers are mean |error| in minutes against block-to-block travel times (free-flow, Chittenden County common basis). Lower is better.
Reading it. Hover a zone for its own numbers. Zone-shape error comes from activity spread across a zone; routing-point error comes from where the zone's single routing point sits. Zones outside Chittenden County (H3 only) carry no scores.
Finding. Max-p census-block zones beat H3 at equal count, and the barrier-blind version does as well as the barrier-cut one: the gain is from block aggregation, not barrier following. Burlington only; one seed.
Write-ups: H3 sweep · generators + controls (private).