2010年-世界发展银行全球_Damage_Loss_and_Needs_Assessment_Guidance_Notes___Volume_2_Conducting_Damage_and_Loss_Assessments_after_Disasters_98页_3mb

Damage, Loss and Needs Assessment Guidance Notes: Volume 2 Summary

Core Content

This document is the second volume of the DaLA Guidance Notes, which provide a structured approach to conducting Damage and Loss Assessments (DLA) after disasters. The methodology is rooted in the ECLAC framework and has been adapted to support post-disaster recovery and reconstruction planning. The guidance is aimed at practitioners in government agencies, the World Bank, and other national and international organizations involved in disaster impact assessment.

The DaLA methodology is used to quantify the physical and economic impacts of disasters, identify sector-specific damage and losses, and estimate the financial needs for recovery and reconstruction. It emphasizes the "Build Back Better" principle, which aims to enhance resilience and long-term development through improved infrastructure and economic planning.

Main Points

1. Disaster Trends and Importance of DLA

• Disaster frequency and impact have increased globally, especially in developing countries where vulnerable populations are more affected.
• The economic impact of disasters reached $63 billion in 2009, and weather-related damages could rise to $185 billion annually by the early 2000s.
• Climate change could add $28–$68 billion in damages from tropical cyclones alone.

2. Purpose of the DLA

• To quantify disaster impacts on physical assets and economic flows.
• To determine financial needs for reconstruction and recovery.
• To support policy-making and resource allocation for post-disaster response.

3. Conceptual Framework

• Damage refers to the total or partial destruction of physical assets, measured in replacement costs.
• Losses refer to changes in economic flows, such as declines in output and increased costs in services and production.
• Losses are expressed in current values, while damage is based on pre-disaster replacement costs.

4. Uses of DLA

• In the short term, DLA helps define government interventions to alleviate immediate suffering and initiate recovery.
• In the medium to long term, it defines financial needs for full recovery and reconstruction.
• DLA provides comprehensive insights into the effects on various sectors and geographical areas.

Key Information

5. From Damage and Losses to Needs Assessment

• Damage is used to estimate reconstruction needs.
• Losses are used to estimate economic recovery needs.
• A spatial and sectoral distribution of both damage and losses is essential for prioritizing recovery efforts.

6. Sector-by-Sector Assessment Procedure

• A generic procedure is outlined, which includes:
  1. Defining a pre-disaster baseline.
  2. Developing a post-disaster situation.
  3. Estimating damage and losses.
  4. Estimating the overall disaster effects.
  5. Estimating macro-economic impact.
  6. Estimating impact on personal/household employment and income.

7. Infrastructure Sectors

• Water and Sanitation is one of the main infrastructure sectors.
• It includes three sub-systems: drinking water supply, wastewater treatment, and solid waste management.
• Baseline data includes:
  • Characteristics of water and sanitation systems.
  • Existing capacities in nearby unaffected areas.
  • Seasonal variations in service demands.
  • Financial and operational data of sector enterprises.
• Post-disaster assessment involves field visits to understand the disruption and temporary performance of these systems.
• Damage and losses are estimated by comparing pre- and post-disaster performance.

Conclusion

This volume of the DaLA Guidance Notes provides a structured approach to conducting sector-specific damage and loss assessments. It emphasizes the importance of baseline data, temporary performance analysis, and accurate estimation of both damage and losses. The methodology is designed for practical application by government agencies and international organizations, and supports data-driven decision-making in post-disaster recovery planning.