{
  "property_address": "1250 Queen Street East, Toronto, ON M4L 1C3",
  "property": {
    "property_type": "commercial",
    "property_value": 1200000,
    "rental_income_monthly": 6000,
    "distance_to_construction_m": 25,
    "number_of_units": 1,
    "business_type": "restaurant",
    "annual_revenue": 800000,
    "background_noise_dba": 58
  },
  "construction": {
    "duration_months": 9,
    "equipment": [
      {
        "equipment_type": "jackhammer",
        "dba_at_15m": 90,
        "hours_per_day": 6,
        "days_per_week": 5
      },
      {
        "equipment_type": "excavator",
        "dba_at_15m": 80,
        "hours_per_day": 8,
        "days_per_week": 5
      },
      {
        "equipment_type": "heavy_trucks",
        "dba_at_15m": 85,
        "hours_per_day": 10,
        "days_per_week": 6
      }
    ],
    "dust_impact_zone": "moderate",
    "vibration_ppv_mms": 3.5,
    "traffic_reduction_pct": 0.35,
    "construction_hours_per_day": 10,
    "night_work": false
  },
  "visual_impact": {
    "description": "Permanent view obstruction from new elevated transit guideway, reducing natural light and street visibility",
    "value_reduction_pct": 0.08
  }
}