{
  "catalog_id": 14,
  "title": "Headphones and an unresponsive straight crossing",
  "source_template": "windblown",
  "summary": "A headphone-wearing pedestrian walks straight into the lane without reacting to a warning, then completes the crossing.",
  "focus_xy": [
    43.2,
    -0.5
  ],
  "initial_review_time_s": 0,
  "ego_stop_x_m": 12,
  "ego_release_s": 11,
  "events": [
    {
      "time_s": -7,
      "label": "A pedestrian wearing over-ear headphones stands on the south sidewalk."
    },
    {
      "time_s": -4,
      "label": "The pedestrian begins walking directly north toward the road."
    },
    {
      "time_s": -2,
      "label": "An authored brief warning receives no visible response as the pedestrian enters the roadway."
    },
    {
      "time_s": 0,
      "label": "The pedestrian walks through the ego corridor without stopping or turning the head."
    },
    {
      "time_s": 6,
      "label": "The pedestrian continues toward the north curb at a steady walking pace."
    },
    {
      "time_s": 8.8,
      "label": "The pedestrian finishes the crossing and stops fully on the north sidewalk."
    },
    {
      "time_s": 11,
      "label": "After a stable clearance interval, ego may resume."
    },
    {
      "time_s": 40,
      "label": "The pedestrian remains on the north sidewalk with headphones still worn."
    }
  ],
  "actors": [
    {
      "id": "c014_walker",
      "label": "Headphone-wearing pedestrian",
      "kind": "human",
      "role": "Adult walking straight into the lane without reacting to the stipulated masked warning",
      "color": "teal",
      "length_m": 0.54,
      "width_m": 0.5,
      "height_m": 1.78,
      "keys": [
        {
          "t": -7,
          "x": 43.2,
          "y": -4.3,
          "z": 0,
          "heading_deg": 90,
          "pose": "stand"
        },
        {
          "t": -4,
          "x": 43.2,
          "y": -4.3,
          "z": 0,
          "heading_deg": 90,
          "pose": "walk"
        },
        {
          "t": -2,
          "x": 43.2,
          "y": -2.7,
          "z": 0,
          "heading_deg": 90,
          "pose": "walk"
        },
        {
          "t": 0,
          "x": 43.2,
          "y": -0.5,
          "z": 0,
          "heading_deg": 90,
          "pose": "walk"
        },
        {
          "t": 3,
          "x": 43.2,
          "y": 2.8,
          "z": 0,
          "heading_deg": 90,
          "pose": "walk"
        },
        {
          "t": 6,
          "x": 43.2,
          "y": 6.1,
          "z": 0,
          "heading_deg": 90,
          "pose": "walk"
        },
        {
          "t": 8.8,
          "x": 43.2,
          "y": 8.65,
          "z": 0,
          "heading_deg": 90,
          "pose": "stand"
        },
        {
          "t": 40,
          "x": 43.2,
          "y": 8.65,
          "z": 0,
          "heading_deg": 90,
          "pose": "stand"
        }
      ],
      "attach_to": "",
      "attach_start_s": -7,
      "attach_end_s": 40,
      "attach_offset_xyz": [
        0,
        0,
        0
      ],
      "interaction": "Walks with head and torso facing north, hands free and no phone. Maintains the straight path and approximately 1.1 m/s cruising speed despite the warning cue. Uses ordinary foot placement at existing curb transitions, then decelerates only upon reaching the north sidewalk."
    },
    {
      "id": "c014_headset",
      "label": "Noise-canceling headphones",
      "kind": "equipment",
      "role": "Persistent over-ear headphones; active noise cancellation and warning masking are scenario assumptions",
      "color": "charcoal",
      "length_m": 0.2,
      "width_m": 0.24,
      "height_m": 0.25,
      "keys": [
        {
          "t": -7,
          "x": 43.2,
          "y": -4.3,
          "z": 1.55,
          "heading_deg": 90,
          "pose": "stand"
        },
        {
          "t": -4,
          "x": 43.2,
          "y": -4.3,
          "z": 1.55,
          "heading_deg": 90,
          "pose": "stand"
        },
        {
          "t": -2,
          "x": 43.2,
          "y": -2.7,
          "z": 1.55,
          "heading_deg": 90,
          "pose": "stand"
        },
        {
          "t": 0,
          "x": 43.2,
          "y": -0.5,
          "z": 1.55,
          "heading_deg": 90,
          "pose": "stand"
        },
        {
          "t": 3,
          "x": 43.2,
          "y": 2.8,
          "z": 1.55,
          "heading_deg": 90,
          "pose": "stand"
        },
        {
          "t": 6,
          "x": 43.2,
          "y": 6.1,
          "z": 1.55,
          "heading_deg": 90,
          "pose": "stand"
        },
        {
          "t": 8.8,
          "x": 43.2,
          "y": 8.65,
          "z": 1.55,
          "heading_deg": 90,
          "pose": "stand"
        },
        {
          "t": 40,
          "x": 43.2,
          "y": 8.65,
          "z": 1.55,
          "heading_deg": 90,
          "pose": "stand"
        }
      ],
      "attach_to": "c014_walker",
      "attach_start_s": -7,
      "attach_end_s": 40,
      "attach_offset_xyz": [
        0,
        0,
        1.55
      ],
      "interaction": "Model as an open headband with two earcups fitted around the ears, not a solid equipment block through the head. Remains worn throughout the approach, crossing and final rest."
    }
  ],
  "acceptance_checks": [
    "Verify exactly one adult and one persistent headphone prop, with no phone, extra pedestrian or detached duplicate headset.",
    "Evaluate 941 samples at 20 Hz over -7..40 s; keep x=43.2 throughout and maintain grounded walking with bounded acceleration and deceleration.",
    "Show no warning-related head turn, evasive step or lane pause; this must remain distinct from the phone-distraction scene.",
    "Verify the complete adult footprint is within the south sidewalk initially and within the north sidewalk at 8.8 s; check existing curb transitions without adding a ramp.",
    "Keep ego stopped at x=12, y=0 until at least 11 s and release only after the pedestrian's full articulated envelope remains clear.",
    "Require human approval of the entire rehearsal before Image 2.5 edits original Image 4; use the rehearsal for position and posture, not replacement architecture."
  ],
  "assumptions": [
    "This is a counterfactual proposal on the windblown map. Original Image 4 supports the sunlit street, intersection and buildings, but does not establish the proposed pedestrian or headphones.",
    "The crossing is unmarked at x=43.2. The authored start at y=-4.3 and finish at y=8.65 use the supplied south and north sidewalk polygons; no new crosswalk is introduced.",
    "The warning being masked by active noise-canceling headphones is a stipulated narrative condition. Device mode, actual audibility and hearing ability cannot be inferred from a photograph.",
    "Playback is finite and non-looping at 20 Hz from -7 to 40 s, with a rest, a continuous straight crossing, a bounded stop and a persistent final state.",
    "Human support remains at z=0 on mapped ground. The headphone attachment is vertical above the same support location and follows the head without snapping.",
    "Ego is the simulator vehicle, approximately 4.6 by 1.85 m, stopped with its center at x=12, y=0 by -3 s. Release at 11 s is conditional on verified buffered-corridor clearance.",
    "Curb profiles and photographed vehicle depths require human review. The initial review seek point is not approval, and no image generation or executed validation is claimed."
  ]
}
