summary.json

{
  "benchmark_id": "001_synthetic_mine_throughput",
  "scenarios": {
    "trucks_12": {
      "replications": 30,
      "shift_length_hours": 8,
      "total_tonnes_mean": 12700.0,
      "total_tonnes_ci95_low": 12611.201756294839,
      "total_tonnes_ci95_high": 12788.798243705161,
      "tonnes_per_hour_mean": 1587.5,
      "tonnes_per_hour_ci95_low": 1576.4002195368548,
      "tonnes_per_hour_ci95_high": 1598.5997804631452,
      "average_cycle_time_min": 43.34804398972537,
      "truck_utilisation_mean": 0.5446978256438465,
      "crusher_utilisation": 0.9256194966087355,
      "average_loader_queue_time_min": 4.2008665726348715,
      "average_crusher_queue_time_min": 14.40920978110974,
      "top_bottlenecks": [
        "Crusher Capacity",
        "Crusher Queueing"
      ]
    },
    "crusher_slowdown": {
      "replications": 30,
      "shift_length_hours": 8,
      "total_tonnes_mean": 6393.333333333333,
      "total_tonnes_ci95_low": 6346.373013971791,
      "total_tonnes_ci95_high": 6440.293652694875,
      "tonnes_per_hour_mean": 799.1666666666666,
      "tonnes_per_hour_ci95_low": 793.2966267464739,
      "tonnes_per_hour_ci95_high": 805.0367065868594,
      "average_cycle_time_min": 56.36055656566297,
      "truck_utilisation_mean": 0.48338789106153596,
      "crusher_utilisation": 0.9358934138333039,
      "average_loader_queue_time_min": 1.7721763894441729,
      "average_crusher_queue_time_min": 26.451427777389952,
      "top_bottlenecks": [
        "Crusher Capacity",
        "Crusher Queueing"
      ]
    },
    "ramp_closed": {
      "replications": 30,
      "shift_length_hours": 8,
      "total_tonnes_mean": 12350.0,
      "total_tonnes_ci95_low": 12287.401884869343,
      "total_tonnes_ci95_high": 12412.598115130657,
      "tonnes_per_hour_mean": 1543.75,
      "tonnes_per_hour_ci95_low": 1535.925235608668,
      "tonnes_per_hour_ci95_high": 1551.574764391332,
      "average_cycle_time_min": 30.148132657048436,
      "truck_utilisation_mean": 0.7724535037492032,
      "crusher_utilisation": 0.9026346706609539,
      "average_loader_queue_time_min": 2.733230878560841,
      "average_crusher_queue_time_min": 3.474403425130481,
      "top_bottlenecks": [
        "Crusher Capacity"
      ]
    },
    "ramp_upgrade": {
      "replications": 30,
      "shift_length_hours": 8,
      "total_tonnes_mean": 12363.333333333334,
      "total_tonnes_ci95_low": 12297.930567953365,
      "total_tonnes_ci95_high": 12428.736098713303,
      "tonnes_per_hour_mean": 1545.4166666666667,
      "tonnes_per_hour_ci95_low": 1537.2413209941706,
      "tonnes_per_hour_ci95_high": 1553.592012339163,
      "average_cycle_time_min": 30.101911937318196,
      "truck_utilisation_mean": 0.7719623519472653,
      "crusher_utilisation": 0.9035141874366132,
      "average_loader_queue_time_min": 2.73341560433327,
      "average_crusher_queue_time_min": 3.4759882725994276,
      "top_bottlenecks": [
        "Crusher Capacity"
      ]
    },
    "baseline": {
      "replications": 30,
      "shift_length_hours": 8,
      "total_tonnes_mean": 12350.0,
      "total_tonnes_ci95_low": 12287.401884869343,
      "total_tonnes_ci95_high": 12412.598115130657,
      "tonnes_per_hour_mean": 1543.75,
      "tonnes_per_hour_ci95_low": 1535.925235608668,
      "tonnes_per_hour_ci95_high": 1551.574764391332,
      "average_cycle_time_min": 30.148132657048436,
      "truck_utilisation_mean": 0.7724535037492032,
      "crusher_utilisation": 0.9026346706609539,
      "average_loader_queue_time_min": 2.733230878560841,
      "average_crusher_queue_time_min": 3.474403425130481,
      "top_bottlenecks": [
        "Crusher Capacity"
      ]
    },
    "trucks_4": {
      "replications": 30,
      "shift_length_hours": 8,
      "total_tonnes_mean": 7600.0,
      "total_tonnes_ci95_low": 7562.021038995444,
      "total_tonnes_ci95_high": 7637.978961004556,
      "tonnes_per_hour_mean": 950.0,
      "tonnes_per_hour_ci95_low": 945.2526298744305,
      "tonnes_per_hour_ci95_high": 954.7473701255695,
      "average_cycle_time_min": 24.648199261872527,
      "truck_utilisation_mean": 0.9255380322092951,
      "crusher_utilisation": 0.5550053095433483,
      "average_loader_queue_time_min": 0.8639461660122482,
      "average_crusher_queue_time_min": 0.665168120247141,
      "top_bottlenecks": [
        "Truck Fleet Size"
      ]
    }
  },
  "key_assumptions": [
    "Trucks follow shortest-time path",
    "Truncated normal distribution for service times",
    "Lognormal noise for travel times"
  ],
  "model_limitations": [
    "No maintenance or breakdowns modeled",
    "Simplified traffic interactions"
  ],
  "additional_scenarios_proposed": [
    {
      "scenario_id": "crusher_expansion",
      "description": "Adding a second crusher lane (capacity: 2) to alleviate the primary bottleneck."
    }
  ]
}