ENM 307 SIMULATION - HOMEWORK 3

Deadline: 12.04.2018Thursday

Bank Branch Design

As a consultant working for ABC Bank you are asked to design their new Eskişehir branch. Since Eskişehir is a crowded area, you concluded that the customer arrival process is a Poisson process and after analyzing the past data of other branches you expect the customer arrival rate to be 10 customers/hour. You have to decide on the queueing regime and the number of clerks.

For the queueing regime, you have 3 alternatives:

  1. No sharing of information with customers and they will select among the existing queues randomly (with equal probability) upon their arrival.
  2. A simple screen that shows the number of people (NQ(Process 1.Queue) function in Arena) in existing queues and customers will join the shortest queue (the closer one if queue lengths are equal).
  3. A numerator which gives each customer a number upon their arrival and hence creates a single queue for the servers.

For the clerks you can hire two rookie clerks with exponential service rate 8 customers/hour (mean service time is 7.5 minutes) or one experienced clerk with exponential service rate 12 customers/hour (mean service time is 5 minutes). The cost of a rookie clerk is 100 TL per day and the cost of an experienced clerk is 150 TL per day.

Create 4 alternative simulation models and run them for at least 1 year (5 days a week for 52 weeks and 9 hours a day) and take 10 replications for your results to be accurate. Use appropriate graphs and tables to show key performance measures of different alternatives, calculate their costs and come up with your final suggestion.

IMPORTANT NOTES:

1) This homework can be done as a team which consists of 2 students. Homework of team which includes more than 2 students will NOT be evaluated.

2) Put all the screenshots you have taken into a single MS Word File and make all your comments below or above each screenshot.

3) Submit your homeworks by sending an e-mail to until 12/04/2018, 23.59 and the subject of your e-mail should be Enm307_hw3_12_04.