Applications in Oil-Spill Risk in Harbors and Coastal Areas Using Fuzzy Integrated Evaluation Model

Based on statistical analysis for reasons and impacts of oil-spill accident in ports and offshore areas in China, the possibility index system of oil-spill risk and impact assessment index system were set up, respectively. Take Tianjin Port for example, weight of each evaluation factor was determined by analytic hierarchy process (AHP), and the membership functions of evaluation factors were established by down semi-trapezoidal distribution. Then the possibility and impacts of oil spills were evaluated by multi-level fuzzy integrated evaluation model. And the overall effects of oil-spill risk in Tianjin Port were determined by two-dimensional risk matrix.