1.) If 300 customers arrive at peak hour, then on average 75 orders will be placed ( considering group of 4 each).
average number of orders per hour =60/1.05 =57.14 orders, hence number of cash registers required=75/57.14=approximately 2 registers.
2.) This problem will be solved using principle of little ‘s law which states that
rate of flow in aprocess xthroughput time of the process= in process inventory
since the restaurant can accomodate 300 customers per hour, rate of flow=300/60 = 5 per minute.
Throughput time of the process =average length of time at restaaurant + average time to place and recieve an order
= 50 +1.05 = 51.05 minute .
There fore in process inventory , number of customers at any time =rate flow in process xThroughput time of the process
=5 x51.05=255.25 customers.
Since 30 % of customers will have cars , hence numbers of cars expected to be parked at any point of time = 255.25×30%= 76.575
capacity cushion = 20 %
hence ,number f parking space needed =numbers of cars expected to be parked at any point of timex(1+ capacity cushion)
=76.575×1.2
=91.89
=92
3.) Numbers of tables required=255.25 /4 = 64 tables ( 4 customer per table)
capacity cushion of 20 %
Hence, number of tables =64×1.2
=78 tables
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