{"blocks":{"rurality-density":["urbanShare","logDensity","densitySquared"],"road-traffic":["trunkShare","carShare","hgvShare","vanShare","logFlow"],"housing-ownership":["detached","terraced","flats","noCars","twoPlusCars"],"social":["income","noQualifications"],"age":["ageYoung","ageOld"]},"designSha256":"3e8711a0fa9938b3965bd3e628473dda6bffcbc0a1c3551cf59e0fac2d7c0c27","scriptSha256":"19d06b16547bfbf82dee34a237134cf74812b76630cb37be3a65545fe7ed99d7","method":"Compare the full expanded baseline without parking with the same model minus each named block. Positive gain means the block improves leave-region-out Poisson deviance, conditional on the remaining blocks. These are exploratory tests with correlated predictors, not individual causal effects. Network addition uses a 2026 snapshot. No best block or parking scenario selected."}