{
  "version": "burst-simulation-design@1",
  "suite_id": "tjwater2-v2-burst-calibration",
  "project_code": "tjwater2_v2",
  "project_id": "871d7538-589c-47de-a6d5-3185ccb9f0e1",
  "model_expectations": {
    "node_count": 92393,
    "pipe_count": 91050,
    "valve_count": 4489,
    "flow_unit": "LPS",
    "pressure_unit": "METERS",
    "pressure_measurement_unit": "m",
    "flow_measurement_unit": "m3/h",
    "emitter_exponent": 0.5,
    "hydraulic_timestep_seconds": 900,
    "report_timestep_seconds": 900
  },
  "duration_seconds": 3600,
  "event_times": [
    "2026-10-08T02:00:00+08:00",
    "2026-10-08T12:00:00+08:00"
  ],
  "severity_levels": [
    {"level": "light", "cross_section_fraction": 0.03125},
    {"level": "medium", "cross_section_fraction": 0.0625},
    {"level": "severe", "cross_section_fraction": 0.125}
  ],
  "calibration_order": ["severe", "medium", "light"],
  "selection_rule": {
    "primary_pressure_drop_percent": 30,
    "corroborating_pressure_drop_percent": 10,
    "flow_change_percent": 20,
    "consecutive_samples": 2,
    "expected_sample_count": 5,
    "relative_change_epsilon": 0.000001,
    "normal_control_must_not_trigger": true,
    "negative_monitor_pressure_allowed": false,
    "choose_smallest_passing_area": true
  },
  "binding_validation": {
    "max_pressure_distance_m": 1.0,
    "max_flow_distance_m": 1.0
  },
  "cases": [
    {"case_id": "B05", "pipe_id": "564345", "occurred_at": "2026-10-08T02:00:00+08:00"},
    {"case_id": "B06", "pipe_id": "564345", "occurred_at": "2026-10-08T12:00:00+08:00"},
    {"case_id": "B07", "pipe_id": "540173", "occurred_at": "2026-10-08T02:00:00+08:00"},
    {"case_id": "B08", "pipe_id": "540173", "occurred_at": "2026-10-08T12:00:00+08:00"}
  ],
  "pipes": [
    {
      "role": "primary",
      "pipe_id": "564345",
      "diameter_mm": 150,
      "length_m": 249.176,
      "start_node_id": "92686",
      "emitter_node_id": "7427148338069072993",
      "longitude": 121.469870,
      "latitude": 31.005517,
      "candidate_orifice_areas_cm2": {
        "light": 5.522331,
        "medium": 11.044662,
        "severe": 22.089323
      },
      "pressure_bindings": [
        {"device_id": "92724", "node_id": "92724"},
        {"device_id": "100026", "node_id": "100026"},
        {"device_id": "115039", "node_id": "115039"},
        {"device_id": "107672", "node_id": "107672"},
        {"device_id": "107651", "node_id": "107651"}
      ],
      "flow_bindings": [
        {"device_id": "542017", "link_id": "542017"},
        {"device_id": "486033", "link_id": "486033"},
        {"device_id": "542121", "link_id": "570995"},
        {"device_id": "449417", "link_id": "449417"},
        {"device_id": "516234", "link_id": "516234"}
      ],
      "boundary_valve_ids": [
        "valve-12b1e80612f9432da0e64485",
        "valve-b6cc8d68e38f43c9b3389e04",
        "valve-fa0583a6ac134aeb9513ada5",
        "valve-f189692cccbd40a69dc26cca",
        "valve-880f34624a444f5497faf2ca"
      ],
      "output_node_ids": [
        "92686", "7427148338069072993", "92724", "100026", "115039", "107672", "107651"
      ],
      "output_link_ids": [
        "564345", "542017", "486033", "570995", "449417", "516234",
        "valve-12b1e80612f9432da0e64485", "valve-b6cc8d68e38f43c9b3389e04",
        "valve-fa0583a6ac134aeb9513ada5", "valve-f189692cccbd40a69dc26cca", "valve-880f34624a444f5497faf2ca"
      ]
    },
    {
      "role": "secondary",
      "pipe_id": "540173",
      "diameter_mm": 200,
      "length_m": 162.128,
      "start_node_id": "500819",
      "emitter_node_id": "517120",
      "longitude": 121.503495,
      "latitude": 30.895889,
      "candidate_orifice_areas_cm2": {
        "light": 9.817477,
        "medium": 19.634954,
        "severe": 39.269908
      },
      "pressure_bindings": [
        {"device_id": "535381", "node_id": "535381"},
        {"device_id": "142377", "node_id": "142377"},
        {"device_id": "430299", "node_id": "3186958412475415759"},
        {"device_id": "121456", "node_id": "121456"},
        {"device_id": "87082", "node_id": "87082"}
      ],
      "flow_bindings": [
        {"device_id": "542017", "link_id": "542017"},
        {"device_id": "486033", "link_id": "486033"},
        {"device_id": "542121", "link_id": "570995"},
        {"device_id": "491909", "link_id": "491909"},
        {"device_id": "524529", "link_id": "524529"}
      ],
      "boundary_valve_ids": [
        "valve-fd82099a578046b3bde41d63",
        "valve-c9f6343550784ec9b3e97f2b",
        "valve-1efb02be70174163948ab7ca",
        "valve-4686c52b4d7e4d149c1823de",
        "valve-aa89ee883fb4461b91eacc3d",
        "valve-5e6f00e167804055830f18d8"
      ],
      "output_node_ids": ["500819", "517120", "535381", "142377", "3186958412475415759", "121456", "87082"],
      "output_link_ids": [
        "540173", "542017", "486033", "570995", "491909", "524529",
        "valve-fd82099a578046b3bde41d63", "valve-c9f6343550784ec9b3e97f2b",
        "valve-1efb02be70174163948ab7ca", "valve-4686c52b4d7e4d149c1823de",
        "valve-aa89ee883fb4461b91eacc3d", "valve-5e6f00e167804055830f18d8"
      ]
    }
  ]
}