根据美国联邦政府的统一要求和指导意见,纽约市探索建立了由市应急办牵头的规范有序、综合协调、依靠科技、公开透明的自然灾害风险评估体系。通过开展辨识风险、描述风险事件、编写资产清单、评估灾害损失等工作,详细分析了当地的风险环境,确定了所面临的八大类自然灾害风险,为每类风险绘制本地区大比例尺的风险分布图、风险损失表及风险淹没疏散撤离图,为防灾减灾和应急管理部门提供辅助决策支持。
Risk assessment is the process of evaluating the vulnerability of people,buildings,and infrastructure to estimate the potential loss of life,personal injury,economic injury,and property damage resulting from natural hazards.To address the requirements of the Disaster Mitigation Act of 2000 and better understand the potential vulnerability and losses associated with hazards of concern,New York City used standardized tools including the HAZUS-MH modeling software,combined with local,state,and federal data to conduct the vulnerability assessment.Following the process of risk identification,vulnerability assessment,hazard environment and losses evaluation,New York City retained eight natural hazards for profiling and analysis.