3. Methodology for risk evaluation in PTOM
Step 1– Identification of the risk factors within the PTOM (See the literature review).
Step 2– Developing a generic hierarchical structure based on the risk factors (See Fig. 1).
Step 3– Determination of the global weights for risk factors using the FAHP method (See Table 1).
Step 4– To use FST and belief degree concept to measure the risks level of ports in real situations (See sections 4 and 5).
Step 5– To use ER approach by help of IDS software to aggregate the results obtained in step 3 and step 4 (See section 6).