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{
  "window_hours": 3622,
  "cells": 662,
  "total_obstruction_m2h": 885304.5,
  "max_cis_seconds_per_day": 12.237083435058594,
  "checks": [
    {
      "name": "congestion co-occurrence",
      "passed": false,
      "statistic": 0.546268982847154,
      "p_value": 0.7294,
      "detail": "1 congestion events in top-50 CIS cells, 0.55x exposure-matched expectation (p=0.7294)"
    },
    {
      "name": "closure co-occurrence",
      "passed": false,
      "statistic": 1.4121225287855748,
      "p_value": 0.0848,
      "detail": "39 closure events in top-50 CIS cells, 1.41x exposure-matched expectation (p=0.0848)"
    },
    {
      "name": "weight sensitivity",
      "passed": true,
      "statistic": 0.8522597439177156,
      "p_value": null,
      "detail": "Kendall tau 0.852 over 12 trials at +/-30%; top-50 membership overlap 92.8% (threshold tau>=0.8)"
    },
    {
      "name": "width-normalisation ablation",
      "passed": true,
      "statistic": 0.76,
      "p_value": null,
      "detail": "top-50 overlap 76.0% with a flat-width index (full-ranking tau 0.727); lower means width normalisation is doing real work"
    }
  ],
  "n_passed": 2
}