{
  "$schema": "https://versky.org/datasets/scenario.schema.json",
  "scenario_id": "two-vehicle-headon-v1",
  "name": "Two-Vehicle Head-On Conflict (DFR)",
  "version": "1.0",
  "patent_refs": ["P2 ¶[0020]", "P2 §5.8", "P2 Claim 2-3"],
  "description": "Illustrative AACP scenario: two vehicles on opposing headings approach a shared cell at identical altitude. Designed to exercise the 500 ms negotiation bound and the 4-level Deterministic Fallback Resolver. Not a validated conformance baseline.",
  "illustrative_expectation": {
    "negotiation_likely_outcome": "fails to converge within 500 ms bound",
    "fallback_path": "DFR (4-level priority hierarchy)",
    "expected_yielding_vehicle_id": "sky_02",
    "rationale": "Mission priority (PASSENGER > CARGO); subsequent DFR levels irrelevant given priority gap"
  },
  "vehicles": [
    {
      "vehicle_id": "sky_01",
      "position": { "lat": 0.0, "lon": 0.0, "altitude_m": 20.0 },
      "velocity": { "speed_kmh": 30.0, "heading_deg": 90.0 },
      "mission_priority": "PASSENGER",
      "energy_pct": 85.0
    },
    {
      "vehicle_id": "sky_02",
      "position": { "lat": 0.0, "lon": 0.00090, "altitude_m": 20.0 },
      "velocity": { "speed_kmh": 30.0, "heading_deg": 270.0 },
      "mission_priority": "CARGO",
      "energy_pct": 60.0
    }
  ],
  "environment": {
    "floor_id": 1,
    "cell_capacity": 8,
    "wind_mps": 0.0,
    "comm_link_loss_prob": 0.0
  },
  "status": "Illustrative inputs only — public schema + conformance harness ship in a later phase.",
  "license": "CC-BY-4.0",
  "citation": "Prukpatarakul, J. (2026). VerSky Scenario Dataset v1.0 — two-vehicle-headon-v1. https://versky.org/datasets/"
}