You will be creating and analysing a checkout (queue) model for ACME QuickMart, a general store in a...

Question

You will be creating and analysing a checkout (queue) model for ACME QuickMart, a general store in a small, but growing regional town. QuickMart's managers are very proud of their excellent quick service. The store currently only has one queue and one checkout counter but, with a growing population, management is considering new checkout options. They've done their market research of similar stores and want to compare their one queue, one checkout station to the checkout models below: •one queue with three checkout stations, but the 2one is only opened if 3 or more ndcustomers are waiting in the first line and the 3one is only opened if 2 or more customers rd are waiting in the second line. •three queues with three checkout stations, where one is an express station for customers with 8 or fewer items. The other two checkout stations are normal stations. If no customers are in the express queue, the express checkout server will take the next customer in the non-express queue with more waiting customers. If two queues have the same number of customers, the express checkout server will take the next customer in the first queue. QuickMart's management would like you to provide some analysis and recommendations on which checkout configuration would provide the quickest checkout service for their customers

Jahir Abbas · Accepted Answer

import numpy as np
import pandas as pd
class QuickMart_Simulation:
def __init__(self): 
self.clock=0.0 #simulation clock
self.num_arrivals=0 #total number of arrivals
self.t_arrival=self.gen_int_arr() #time of next arrival
self.t_departure1=float('inf') #departure time from server 1
self.t_departure2=float('inf') #departure time from server 2
self.dep_sum1=0 #Sum of service times by counter 1
self.dep_sum2=0 #Sum of service times by counter 2
self.state_T1=0 #current state of server1 (binary)
self.state_T2=0 #current state of server2 (binary)
self.total_wait_time=0.0 #total wait time
self.num_in_q=0 #current number in queue
self.number_in_queue=0 #customers who had to wait in line(counter)
self.num_in_system=0 #current number of customers in system
self.num_of_departures1=0 #number of customers served by counter 1 
self.num_of_departures2=0 #number of customers served by counter 2 
self.lost_customers=0 #customers who left without service
def time_adv(self):

You will be creating and analysing a checkout (queue) model for ACME QuickMart, a general store in a small, but growing regional town. QuickMart's managers are very proud of their excellent quick...

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