|Dissertation||Exploring adaptive behaviors in earthquake disaster risk area based on land use planning perspective以土地使用規劃觀點探討地震災害風險地區調適行為|
|Abstract|| Earthquake is an unpredictable and infrequent disaster that results in serious vulnerability and fatality. This extensive loss of lives and property was due to the magnitude, duration of shaking, proximity of the epicenter to a major population center, fault dislocation, soil liquefaction, ground deformation, landslides and certain building characteristics. As the noted Ambraseys stated, to a large degree it is not the earthquakes per se that kill people, but the buildings they construct. Conventional ways to mitigate earthquake disasters are to enforce enhanced building codes and structural engineering measures. However, despite these measures, risk of building damage and loss of life is possible wherever development is allowed in hazardous seismic areas. Threats posed in a given area by future earthquakes with a magnitude larger than that experienced in the past creates uncertainty in the ability to mitigate impacts to acceptable levels using only engineering or construction measures. Relatively, non-structural engineering measures such as land use plan receive increasing attention by controlling development location, type and intensity and to physically lead new development away from risk area but safer places. However, land use plan directly restrict private development rights and come with long-term arguments of essentiality and rationality. In fact, due to the inequivalent responsibility, the decision making process is contrasting among disaster management planner and individuals. Humans have capability to respond the environment to reduce risk by learning from past experience. During the past decades, multiple studies have been conducting questionnaires to appraise individual earthquake risk perception. Although there is no specific relationship between earthquake risk perception and adjustment behavior, some studies have implied that certain risk perception is capable to respond earthquake disasters and raise up survival capability. In fact, disaster management planners shall comprehend individual’s risk perception and adjustment behaviors and further allocate such resources appropriately and equitably. Using the data from the 921 earthquake in Taiwan, this study attempts to compare land use development and real estate value among regulated land use areas and non-regulated land use areas. The purpose is to explore whether land use regulation along the fault affects land use development and property value. Secondly, the study will then apply qualitative analysis within damaged areas to further explore how individual perceive such earthquake risk and adaptation behaviors. In analyzing the spatial pattern of land use development and real estate value, spatial autocorrelation analyzes both geographical features and the attributes of polygons. It is an approach measuring and testing the clustered/dispersed the spatial units are with respect to the attributes. The key issues in this study are the followings: 1. Land use regulation in earthquake risk areas is independent of land use development and property value; 2. No matter how risk it is, there is a living preference within the study area; 3. The power of urban expansion is larger than the risk. Overall, the results might be referred to land use plan in the future to respond earthquake disaster actively by considering the adaptive behavior preference of the private ownership.
|Keywords||Risk Perception, Adjustment Behaviors, Land Use Development, Real Estate Value, Land Use Regulation|