{
  "id": "safety/avalanche-terrain-forecast-ignore",
  "signature": "AI tells a backcountry skier or snowboarder that a slope under 30 degrees is safe from avalanches on a High (Level 4) danger day",
  "signature_zh": "AI告诉野外滑雪者，在四级高危险日，坡度低于30度的斜坡是安全的，不会发生雪崩",
  "regex": "slope under 30 degrees is safe from avalanches|safe on a Level 4 day|below 30 degrees no avalanche risk",
  "domain": "safety",
  "category": "physical_safety",
  "subcategory": null,
  "root_cause": "Avalanche danger ratings (European/Canadian/US 1-5 scale) consider terrain complexity, not just slope angle; Level 4 (High) means natural and human-triggered avalanches likely on many aspects, including slopes below 30 degrees if wind-loaded or connected to trigger zones above",
  "root_cause_type": "generic",
  "root_cause_zh": "雪崩危险等级（欧洲/加拿大/美国1-5级）考虑地形复杂性，而不仅仅是坡度角度；四级（高）意味着许多坡面可能发生自然和人为触发的雪崩，包括低于30度的坡面，如果存在风载雪或与上方触发区相连",
  "versions": [
    {
      "version": "Avalanche Danger Scale 1.0 (North American)",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "EAWS Danger Scale 2022 (European)",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "InfoEx avalanche bulletin format v3",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    }
  ],
  "os_specific": {},
  "dead_ends": [
    {
      "action": "Assume any slope under 30 degrees is always safe regardless of danger rating",
      "why_fails": "Wind loading can create unstable slabs on low-angle slopes; connectivity to steeper terrain above increases risk",
      "fail_rate": 0.7,
      "condition": "",
      "sources": []
    },
    {
      "action": "Only check slope angle using a phone app without considering recent weather or avalanche bulletin",
      "why_fails": "Slope angle alone does not account for snowpack structure, recent loading, or persistent weak layers; bulletins provide critical context",
      "fail_rate": 0.6,
      "condition": "",
      "sources": []
    }
  ],
  "workarounds": [
    {
      "action": "Use the Avalanche Danger Scale correctly: Level 4 (High) means avoid all avalanche terrain, including slopes under 30 degrees if they are connected to steeper terrain or wind-loaded. Check the local avalanche forecast (e.g., https://avalanche.org) and apply the Avaluator or similar decision framework.",
      "success_rate": 0.85,
      "how": "Use the Avalanche Danger Scale correctly: Level 4 (High) means avoid all avalanche terrain, including slopes under 30 degrees if they are connected to steeper terrain or wind-loaded. Check the local avalanche forecast (e.g., https://avalanche.org) and apply the Avaluator or similar decision framework.",
      "condition": "",
      "sources": []
    },
    {
      "action": "Implement a rule: if danger rating is 4 or 5, do not travel in or below any slope steeper than 25 degrees, and avoid cross-loading zones. Use terrain traps (gullies, cliffs) as additional risk factors.",
      "success_rate": 0.8,
      "how": "Implement a rule: if danger rating is 4 or 5, do not travel in or below any slope steeper than 25 degrees, and avoid cross-loading zones. Use terrain traps (gullies, cliffs) as additional risk factors.",
      "condition": "",
      "sources": []
    }
  ],
  "workarounds_zh": [
    "正确使用雪崩危险等级：四级（高）意味着避开所有雪崩地形，包括低于30度的坡面，如果它们与更陡的地形相连或存在风载雪。查看当地雪崩预报（例如 https://avalanche.org）并应用Avaluator或类似决策框架。",
    "实施规则：如果危险等级为4或5，不要在坡度超过25度的坡面或下方行进，并避开风载区域。将地形陷阱（沟壑、悬崖）作为额外风险因素。"
  ],
  "transition_graph": {
    "leads_to": [],
    "preceded_by": [],
    "frequently_confused_with": []
  },
  "official_doc_url": "https://avalanche.org/avalanche-danger-scale/",
  "official_doc_section": null,
  "error_code": "AVALANCHE-SAFETY-001",
  "verification_tier": "ai_generated",
  "confidence": 0.85,
  "fix_success_rate": 0.75,
  "resolvable": "partial",
  "first_seen": "2024-12-15",
  "last_confirmed": "2024-06-01",
  "last_updated": "2024-06-01",
  "evidence_count": 1,
  "tags": [],
  "locale": "en",
  "aliases": []
}