Extenics-based Safety Assessment Of Navigation Enviroment In Singapore Straits

Maritime transport serving more than90%of global trade by carrying huge quantities of cargo cost effectively, cleanly and safely. Along with the development of shipping industry, the risk of maritime transport is increasing quickly. As the prosperous maritime traffic and the high standards and new requirements of safety of life at sea, property, environment, shipping safety assessments develop rapidly.Singapore Straits creating one of the world’s chokepoints. About400shipping lines linking700ports world wide regularly utilize the Straits for transiting and/or transshipments. China to Europe, the Middle East, Africa, the vast majority of goods trade route using Singapore Straits, about80%of the crude oil imports crossing Singapore strait, the safety of navigation environment in the Straits has attracted great attentions from International Maritime Organization, coastal states, and the countries using the straits.Based on traffic investigation from captains and seafarers’questionnaire survey, this paper analyzed the characteristics of straits navigation environment, using the theory of Extenics assessment to evaluate the navigation environment safety state in different regions of straits legs, with the Analytic Hierarchy Process and simple dependent function assignment methodology to determine the combined weights.The navigation environment safety assessment based on Extenics in Singapore’s straits has realistic significance. On one hand, enrich the Singapore strait navigation environment safety assessment methodology, on the other hand, explore the new areas based on Extenics assessment methodology. Researching the Singapore Strait navigation environment safety, discoverying the straits risk distribution rules, in order to reduce the probability of channel congestion caused by traffic accident, promoting navigation safety of the ships through the Straits.