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  "calibration": {
    "method": "temperature scaling",
    "temperature": 1.106177568435669,
    "fit_split": "validation after restoring the best checkpoint",
    "independent_calibration_split": false
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  "limitations": [
    "Labels are GPS-derived proxies rather than human safety annotations.",
    "The test set contains five held-out routes from one operating domain.",
    "Raw accuracy is distorted by the majority continue class; macro F1 is primary.",
    "The calibration set is the validation split, not an independent fourth split.",
    "This evaluation is not evidence of safe vehicle control."
  ]
}