{
  "id": "disaster/tsunami-car-evacuation-myth",
  "signature": "AI advises driving away from a tsunami in a car (traffic jam and slow escape risk)",
  "signature_zh": "AI 建议开车逃离海啸（交通堵塞和逃生缓慢风险）",
  "regex": "drive.*away.*tsunami|car.*evacuation.*tsunami|drive.*tsunami.*safety",
  "domain": "disaster",
  "category": "life_threatening",
  "subcategory": null,
  "root_cause": "Driving away from a tsunami often leads to gridlock on coastal roads, trapping occupants in vehicles that are easily swept away or crushed; walking to high ground on foot is faster and safer in most cases.",
  "root_cause_type": "generic",
  "root_cause_zh": "开车逃离海啸通常导致沿海道路严重堵塞，使乘客被困在容易被冲走或压碎的车辆中；在大多数情况下，步行前往高地更快更安全。",
  "versions": [
    {
      "version": "NOAA Tsunami Evacuation Maps v2023",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "FEMA P-646 Tsunami Vertical Evacuation Guide",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    }
  ],
  "os_specific": {},
  "dead_ends": [
    {
      "action": "",
      "why_fails": "Coastal roads become congested within minutes; cars are immovable and become debris traps.",
      "fail_rate": 0.95,
      "condition": "",
      "sources": []
    },
    {
      "action": "",
      "why_fails": "Bridges and low-lying roads are often the first to be inundated or damaged, blocking escape routes.",
      "fail_rate": 0.9,
      "condition": "",
      "sources": []
    },
    {
      "action": "",
      "why_fails": "Drivers may panic and abandon vehicles, causing secondary accidents and blocking emergency vehicles.",
      "fail_rate": 0.85,
      "condition": "",
      "sources": []
    }
  ],
  "workarounds": [
    {
      "action": "Evacuate on foot immediately to high ground at least 30 meters above sea level or 3 km inland; do not wait for traffic to clear.",
      "success_rate": 0.9,
      "how": "Evacuate on foot immediately to high ground at least 30 meters above sea level or 3 km inland; do not wait for traffic to clear.",
      "condition": "",
      "sources": []
    },
    {
      "action": "If in a vehicle and traffic is light, drive perpendicular to the coast at maximum safe speed, but be prepared to abandon the car if traffic builds.",
      "success_rate": 0.75,
      "how": "If in a vehicle and traffic is light, drive perpendicular to the coast at maximum safe speed, but be prepared to abandon the car if traffic builds.",
      "condition": "",
      "sources": []
    },
    {
      "action": "Use designated tsunami evacuation routes marked with signs; pre-plan a walking route to the nearest assembly area.",
      "success_rate": 0.85,
      "how": "Use designated tsunami evacuation routes marked with signs; pre-plan a walking route to the nearest assembly area.",
      "condition": "",
      "sources": []
    }
  ],
  "workarounds_zh": [
    "Evacuate on foot immediately to high ground at least 30 meters above sea level or 3 km inland; do not wait for traffic to clear.",
    "If in a vehicle and traffic is light, drive perpendicular to the coast at maximum safe speed, but be prepared to abandon the car if traffic builds.",
    "Use designated tsunami evacuation routes marked with signs; pre-plan a walking route to the nearest assembly area."
  ],
  "transition_graph": {
    "leads_to": [],
    "preceded_by": [],
    "frequently_confused_with": []
  },
  "official_doc_url": "https://www.tsunami.noaa.gov/evacuation",
  "official_doc_section": null,
  "error_code": null,
  "verification_tier": "ai_generated",
  "confidence": 0.88,
  "fix_success_rate": 0.82,
  "resolvable": "partial",
  "first_seen": "2024-02-28",
  "last_confirmed": "2024-06-01",
  "last_updated": "2024-06-01",
  "evidence_count": 1,
  "tags": [],
  "locale": "en",
  "aliases": []
}