D2. Answer the following:

a) Dubai the airport is one of the world's largest airports in the world catering international passengers thorough out the world. The Passengers wait in queues for getting boarding passes and get their luggage get checked by the security personal. There are several terminals operating in the airport and they serve annually, 180 million travelers connecting all destinations around the world. The terminals have many facilities like food courts, pharmacy shops, accessories and jewelry shops selling a wide range of products

Required: Write a report on waiting lines and explain the reasons why waiting lines are important for the operational manager of Dubai international airport. (6 Marks)

b) Provide your own example for the following types waiting for line with a detailed explanation of each: (4 Marks)

I. Single channel - single phase,

II. Multi-channel - single-phase,

III. Single channel - multi-phase,

IV. Multi-channel - Multi-phase,