{
  "script": "generate_covid_comparison_graphsV2.py",
  "rows_used": 2292483,
  "distinct_sites": 4278,
  "total_volume": 780576232.0,
  "comparison_periods": [
    {
      "comparison_period": "Pre-COVID baseline",
      "total_volume": 129914729.0,
      "active_sites": 3723
    },
    {
      "comparison_period": "Lockdown / COVID shock",
      "total_volume": 86672688.0,
      "active_sites": 3893
    },
    {
      "comparison_period": "Extended disruption",
      "total_volume": 131334764.0,
      "active_sites": 3961
    },
    {
      "comparison_period": "Recovery phase",
      "total_volume": 132047373.0,
      "active_sites": 4023
    },
    {
      "comparison_period": "Recent normal",
      "total_volume": 140653667.0,
      "active_sites": 4177
    },
    {
      "comparison_period": "Busiest day detected",
      "total_volume": 159953011.0,
      "active_sites": 4236
    }
  ],
  "v2_fixes": [
    "fixed title/subtitle overlap",
    "fixed scatter plot index calculation",
    "site pivot now uses site_id as durable key",
    "scatter filters tiny-baseline sites",
    "scatter uses percentile axis bounds"
  ],
  "graphs_created": [
    "01_total_volume_by_period.png",
    "02_total_volume_recovery_index.png",
    "03_24_hour_traffic_shape_overlay.png",
    "04_time_bin_period_heatmap.png",
    "05_hourly_percent_change_vs_2019_baseline.png",
    "06_top_30_site_absolute_collapse_2020_vs_2019.png",
    "07_top_30_site_recovery_growth_2025_vs_2019.png",
    "08_site_recovery_scatter_2020_vs_2025.png",
    "09_distinct_active_sites_by_period.png",
    "10_period_summary_dashboard.png"
  ]
}