Operation of a bus maintenance depot Consider a simulation study of a bus maintenance depot. There are 1 inspection station and 2 identical repair stations in the facility. Assume that buses arrive the facility with exponential interarrival times. All buses arrive at the facility must be inspected first. The inspection station is fed by a first-in-first-out queue and the inspection times are uniformly distributed from 30 minutes to 1.25 hours. From records, 40% of the buses need to be repaired after inspection. All the buses that do not need repair will leave the depot immediately. The two repair stations operate in parallel and are fed by a single first-in-first-out queue for buses from the inspection stations. The repair times follow a normal distribution with mean and standard deviation equal to 10.5 and 1.5 hours respectively. Buses will leave the depot immediately after repair. Question 1 Discuss the benefit of using computer-based discrete event simulation in managing the operation of a bus maintenance depot. Explain the situations where simulation is not a preferred solution. (15 marks)