Abstract
Due to the many large earthquakes that have occurred in recent years, the role of seismic risk reduction in building resilient cities has become a matter of concern. The serious disaster damage brought by seismic hazards causes the adoption of migration policies such as building control in the preparedness phase. However, the restricted budget of governments resulting from the global state of economic distress generates a prioritization problem. A decision support framework could be helpful for governments to systematically integrate the complex information when implementing disaster risk reduction policies toward sustainable development. The purpose of this study was to construct an analytical framework based on Geographic Information System (GIS) and Data Envelopment Analysis (DEA) for addressing the prioritization problem by calculating policy efficiency. The spatial DEA-based framework combines indices calculation, spatial database construction, and DEA. Taiwan is an island located in the Circum-Pacific Belt, and has paid long-term attention to adopting policies for earthquake disaster prevention. A policy of earthquake-oriented urban renewal combining enhanced building capacity and city resilience has recently been implemented. A case study of the Yongkang district of the Tainan Metropolis in Taiwan was conducted in this study. The results show an operable framework and propose a suggestion for planning efficient policy priorities in each decision-making unit. In sum, the analytical framework proposed in this study could be a component of a decision support system for governments to adopt disaster risk reduction policies in the process of policy-making and implementation.
Highlights
How to build resilience to unknown events is the most important concept in working towards sustainable development with the high-frequency occurrence of natural hazards [1]
Building a resilient city to increase the capacity for a rapid response to natural hazards is regarded as the main purpose of sustainable development
The policy planner could realize the priority for implementation and observe the alterations of policy performance in each decision unit when changing the situation of resource investment or available outcomes with restricted resources and limited disaster risk management Budgets
Summary
How to build resilience to unknown events is the most important concept in working towards sustainable development with the high-frequency occurrence of natural hazards [1]. These environmental crises seem to be increasingly unpredictable, often with serious damages and casualties beyond expectation. People in high-risk areas such as Taiwan and New Zealand could increase susceptibility to seismic hazard resulting from prior experience without suffering disaster losses [14]. To solve this problem, governments often employ economic incentives to enhance residential supports. The financial burden subsidies for governments may increase when implementing SRR policies
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