Queue Analysis at Sari Mulia Campus ATM

Background: Long queues at ATMs make customers lose because a lot of time is wasted in the waiting process. In the long run, the company's reputation is disrupted, and the number of customers decreases because its service performance decreases and it is less reliable for customers. Methods: Queue analysis at Sari Mulia Campus ATMs Using Queueing System Method with First In First Out (FIFO) Rule, Single Server-Single Phase. Results: The probability of service being idle (Po) is 0.55 or 55%. The probability of service not being idle (Pn) is 0.09 or 9%. The average number of customers in the queue (Lq) is 0,39 people. The average number of customers in the system (Ls) is 0,85 people. The average customer waiting time in the queue (Wq) is 0.02 hours or 1.2 minutes per person. The average customer time in the system (Ws) is 0.05 hours or 3 minutes per person. The average customer process time (t) is 0.3 or 1.8 minutes per person. Conclusion: The waiting time at Sari Mulia Campus ATM is 1.2 minutes, the service rate at Sari Mulia Campus ATM is 37 people/hour, and the processing time at Sari Mulia Campus ATM is 1.8 minutes.