{
  "case": 134,
  "note": "源记录按时间核对；最近行只用于近似车况，不据此宣称精确动作先后。",
  "pre_min_ttc": {
    "radar": {
      "t": -0.157123588,
      "lead_valid": 1.0,
      "distance_m": 65.43722534179688,
      "relative_speed_mps": -18.25,
      "lead_y_m": 2.031496524810791,
      "ttc_s": 3.5856013885916096,
      "thw_s": 3.6665938505274185,
      "thw_moving_s": 3.6665938505274185
    },
    "near_vehicle": {
      "t": -0.199554595,
      "vEgo": 17.84687042236328,
      "aEgo": -0.7336353659629822,
      "brakePressed": false,
      "steeringPressed": false
    }
  },
  "post5_min_ttc": {
    "radar": {
      "t": 0.850369992,
      "lead_valid": 1.0,
      "distance_m": 47.81608200073242,
      "relative_speed_mps": -17.171875,
      "lead_y_m": 2.0517914295196533,
      "ttc_s": 2.784558005502161,
      "thw_s": 2.877314977145628,
      "thw_moving_s": 2.877314977145628
    },
    "near_vehicle": {
      "t": 0.800840602,
      "vEgo": 16.61829948425293,
      "aEgo": -1.3785502910614014,
      "brakePressed": true,
      "steeringPressed": false
    }
  },
  "ttc_under3": [
    {
      "t": 0.587918981,
      "lead_valid": 1.0,
      "distance_m": 51.1748924255,
      "relative_speed_mps": -17.4375,
      "lead_y_m": 2.0471737385,
      "ttc_s": 2.9347608559,
      "thw_s": 2.9990850853,
      "thw_moving_s": 2.9990850853
    },
    {
      "t": 0.850369992,
      "lead_valid": 1.0,
      "distance_m": 47.8160820007,
      "relative_speed_mps": -17.171875,
      "lead_y_m": 2.0517914295,
      "ttc_s": 2.7845580055,
      "thw_s": 2.8773149771,
      "thw_moving_s": 2.8773149771
    },
    {
      "t": 2.084863858,
      "lead_valid": 1.0,
      "distance_m": 43.8448562622,
      "relative_speed_mps": -14.765625,
      "lead_y_m": 2.2981452942,
      "ttc_s": 2.9693870908,
      "thw_s": 3.0229676205,
      "thw_moving_s": 3.0229676205
    }
  ],
  "post5_min_accel": {
    "t": 3.400566633,
    "vEgo": 11.159296989440918,
    "aEgo": -2.740422010421753
  }
}