ABSTRACT

Aviation and sea transportation systems have become an important element of the global economy. Each year, over 1.6 billion passengers around the world use airlines for business and leisure travel and over 40% of the world trade of goods is carried by air from one place to another [1]. Furthermore, over 90% of the world’s cargo is transported by merchant ships, and there are approximately 90,000 merchant ships in the world [2, 3].