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This study intends to employ the decision-making trial and evaluation laboratory (DEMATEL) method to identify the influential factors contributed towards coastal erosion. This investigation specifically studies the coastal erosion in Setiu Wetlands coastal areas which located in Terengganu, Malaysia. The single valued neutrosophic set (SVNS) is used into the DEMATEL instead of crisp numbers. Twelve factors of coastal erosion with three dimensions were identified from literature review and consultation with group of experts. By considering the interrelationships among factors, DEMATEL is applied to acquire the importance and cause-effect relationships among the influential factors of coastal erosion. Obtained result reveals that coastal development gives a significant influence in contributing coastal erosion. The result from this study offers an insight for stakeholders to understand cause-effect relationships among coastal erosion factors in which can provide a precautious short or long term strategies. [ABSTRACT FROM AUTHOR]

Coastal erosion is one of the global problems which also one of the national's environmental major concerns. The coastal erosion can be easily happened if the sea level rises along with the frequent and huge storms. There are various risk factors that can be related with coastal erosion such as tidal range, storm surge, wave height and etc. However, the relative weights for these risk factors are still inconclusive. Thus, this paper aims to determine the relative global weights of risk factors that contribute to coastal erosion using the Analytic Hierarchy Process (AHP) method. Three decision makers were invited to provide judgments for pair-wise comparison matrices of the method. The global weights were obtained using the concept of group decision making environment. The result shows that the most influencing risk factor is shoreline evolution with the highest weightage (20.74%) compared to the other factors. [ABSTRACT FROM AUTHOR]