Passengers at the Sahar International Airport arrive at a security gate at the rate of 40 passengers per hour (Poisson distributed) and form a single line waiting for a security check at one of the two available security gates. Each service gate on the average takes 2.4 minutes to service a passenger, and the service times have a negative exponential distribution:

1. Compute the average waiting time and the average number of passengers in the waiting line.

2. On any given time of the day, passenger traffic varies significantly at the security gates. There may be no passenger traffic at certain times of the day, but it can be as high as 80 passengers per hour during flight take-off times. Design the security server system for the maximum level of passenger traffic.