Rock View Restaurant is a new fast-food restaurant chain. The Operations Manager has divided its normal drive-through service process into the following tasks: Tasks Description Task Time (In Seconds) Predecessors A Take Order 25 None B Receive payment 20 A C Gather drinks 35 A D Gather Food 32 A E Put food etc. In bag 25 C,D F Give food to Customer 10 B,E Currently, Rock View Restaurant has a single window with one person who takes the order, gather the food, collects the money and gives the food to the customer. This takes an average of 147 seconds per customer so only 25.5 cars can be served. Rock View Restaurant wants to increase its drive-through capacity to 60 cars per hour by forming a multi-window line. 1. Calculate the efficiency of the newly design process.

Rock View Restaurant is a new fast-food restaurant chain. The Operations Manager has divided its normal drive-through service process into the following tasks: Tasks Description Task Time (In Seconds) Predecessors A Take Order 25 None B Receive payment 20 A C Gather drinks 35 A D Gather Food 32 A E Put food etc. In bag 25 C,D F Give food to Customer 10 B,E Currently, Rock View Restaurant has a single window with one person who takes the order, gather the food, collects the money and gives the food to the customer. This takes an average of 147 seconds per customer so only 25.5 cars can be served. Rock View Restaurant wants to increase its drive-through capacity to 60 cars per hour by forming a multi-window line. 1. Calculate the efficiency of the newly design process.

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter4: Linear Programming Models

Section: Chapter Questions

Problem 111P

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Tasks	Description	Task Time (In Seconds)	Predecessors
A	Take Order	25	None
B	Receive payment	20	A
C	Gather drinks	35	A
D	Gather Food	32	A
E	Put food etc. In bag	25	C,D
F	Give food to Customer	10	B,E