A fleet repair facility has the capacity to repair 800 trucks per month. However, due to scheduled maintenance of their equipment, management feels that they can repair no more than 600 trucks per month. Last month, two of the employees were absent several days each, and only 400 trucks were repaired. Calculate the utilization of the repair shop. Calculate the efficiency of the repair shop. Discuss the utilization and efficiency of this repair facility. What can be done to improve the operations at the facility?

A fleet repair facility has the capacity to repair 800 trucks per month. However, due to scheduled maintenance of their equipment, management feels that they can repair no more than 600 trucks per month. Last month, two of the employees were absent several days each, and only 400 trucks were repaired. Calculate the utilization of the repair shop. Calculate the efficiency of the repair shop. Discuss the utilization and efficiency of this repair facility. What can be done to improve the operations at the facility?

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter12: Queueing Models

Section: Chapter Questions

Problem 59P

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A fleet repair facility has the capacity to repair 800 trucks per month. However, due to scheduled maintenance of their equipment, management feels that they can repair no more than 600 trucks per month. Last month, two of the employees were absent several days each, and only 400 trucks were repaired. What are the utilization and efficiency of the repair shop?
The staff training centre at a large regional hospital provides training sessions in CPR to all employees. Assume that the capacity of this training system was designed to be 2100 employees per year. Since the training centre was first put in use, the program has become more complex, so that 1500 now represents the most employees that can be trained per year. In the past year, 1350 employees were trained. a) Calculate the efficiency and the utilization of this system. b) If the number of employees who signed up for training next year is 1475, what is the efficiency and utilization rate for next year?
Shouldice Hospital in Canada is widely known for one thing—hernia repair! In fact, that is the only operation it performs, and it performs a great many of them. Over the past two decades this small 90-bed hospital has averaged 7,000 operations annually. Last year, it had a record year and performed nearly 7,500 operations. A hernia repair operation at Shouldice Hospital is performed by one of the 12 full-time surgeons assisted by one of seven part-time assistant surgeons. The first operations begin at 7:30 AM each day, Monday through Friday. Surgeons generally take about one hour to prepare for and perform each hernia operation, and they operate on an average of at most four patients per day. This four patient per day limit on the average number of operations performed per surgeon has been found to be the best operating level for the hospital as it takes into account time the surgeons need for patient exams and consultations, updating medical charts, writing reports, traveling to…
Shouldice Hospital in Canada is widely known for one thing—hernia repair! In fact, that is the only operation it performs, and it performs a great many of them. Over the past two decades this small 90-bed hospital has averaged 7,000 operations annually. Last year, it had a record year and performed nearly 7,500 operations. A hernia repair operation at Shouldice Hospital is performed by one of the 12 full-time surgeons assisted by one of seven part-time assistant surgeons. The first operations begin at 7:30 AM each day, Monday through Friday. Surgeons generally take about one hour to prepare for and perform each hernia operation, and they operate on an average of at most four patients per day. This four patient per day limit on the average number of operations performed per surgeon has been found to be the best operating level for the hospital as it takes into account time the surgeons need for patient exams and consultations, updating medical charts, writing reports, traveling to…
TemaTire Services (TTS) decided to hire a new mechanic to handle all tire changes for customers ordering a new set of tires. Two mechanics have been shortlisted for the job. One mechanic has limited experience, can be hired for GH¢14 per hour, and can service an average of three customers per hour. The other mechanic has several years of experience, can service an average of four customers per hour, but must be paid GH¢20 per hour. Historical data shows that customers arrive at the TTS garage at the rate of twocustomers per hour. 5a)Assuming Poisson arrivals and exponential service times, compute the following for eachmechanic:(i).Average number of customers waiting(ii).Average number of customers in the system(iii).The average time spent in the queue(iv).The average time spent in the system(v).The probability that no queues would build up(vi).The probability that exactly two customers are waiting at any given time.(vii).The probability that up to two customers are waiting at any…
TemaTire Services (TTS) decided to hire a new mechanic to handle all tire changes for customers ordering a new set of tires. Two mechanics have been shortlisted for the job. One mechanic has limited experience, can be hired for GH¢14 per hour, and can service an average of three customers per hour. The other mechanic has several years of experience, can service an average of four customers per hour, but must be paid GH¢20 per hour. Historical data shows that customers arrive at the TTS garage at the rate of twocustomers per hour. 5a)Assuming Poisson arrivals and exponential service times, compute the following for eachmechanic:(i).Average number of customers waiting(ii).Average number of customers in the system(iii).The average time spent in the queue(iv).The average time spent in the system(v).The probability that no queues would build up(vi).The probability that exactly two customers are waiting at any given time.(vii).The probability that up to two customers are waiting at any…
Explain some of the advantages of using the queuing simulator in operations strategy ?
For nearly 20 years, Cullumber Coatings has provided painting and galvanizing services for manufacturers in its region. Manufacturers of various metal products have relied on the quality and quick turnaround time provided by Cullumber Coatings and its 20 skilled employees. During the past year, as a result of a sharp upturn in the economy, the company’s sales have increased by 30% relative to the previous year. The company has not been able to increase its capacity fast enough, so Cullumber Coatings has had to turn work away because it cannot keep up with customer requests.Top management is considering the purchase of a sophisticated robotic painting booth. The booth would represent a considerable move in the direction of automation versus manual labour. If Cullumber Coatings purchases the booth, it would most likely lay off 15 of its skilled painters. To analyze the decision, the company compiled production information from the most recent year and then prepared a parallel compilation…
Charles Lackey operates a bakery in Idaho Falls, Idaho. Because of its excellent product and excellent location, demand has increased by 45%in the last year. On far too many occasions, customers have not been able to purchase the bread of their choice. Because of the size of the store, no new ovens can be added. At a staff meeting, one employee suggested ways to load the ovens differently so that more loaves of bread can be baked at one time. This new process will require that the ovens be loaded by hand, requiring additional manpower. This is the only production change that will be made in order to meet the increased demand. The bakery currently makes 1,800loaves per month. Employees are paid $8 per hour. In addition to the labor cost, Charles also has a constant utility cost per month of $800 and a per loaf ingredient cost of $0.40. -Current multifactor productivity for 640 work hours per month = 0.271 enter your response here loaves/dollar (round your response to…
Charles Lackey operates a bakery in Idaho Falls, Idaho. Because of its excellent product and excellent location, demand has increased by 45%in the last year. On far too many occasions, customers have not been able to purchase the bread of their choice. Because of the size of the store, no new ovens can be added. At a staff meeting, one employee suggested ways to load the ovens differently so that more loaves of bread can be baked at one time. This new process will require that the ovens be loaded by hand, requiring additional manpower. This is the only production change that will be made in order to meet the increased demand. The bakery currently makes 1,800loaves per month. Employees are paid $8 per hour. In addition to the labor cost, Charles also has a constant utility cost per month of $800 and a per loaf ingredient cost of $0.40. -Current multifactor productivity for 640 work hours per month = enter your response here loaves/dollar (round your response to three…
Charles Lackey operates a bakery in Idaho Falls, Idaho. Because of its excellent product and excellent location, demand has increased by 45% in the last year. On far too many occasions, customers have not been able to purchase the bread of their choice. Because of the size of the store, no new ovens can be added. At a staff meeting, one employee suggested ways to load the ovens differently so that more loaves of bread can be baked at one time. This new process will require that the ovens be loaded by hand, requiring additional manpower. This is the only production change that will be made in order to meet the increased demand. The bakery currently makes 1,500 loaves per month. Employees are paid $8 per hour. In addition to the labor cost, Charles also has a constant utility cost per month of $550 and a per loaf ingredient cost of $0.40. Current multifactor productivity for 640 work hours per month = loaves/dollar (round your response to three decimal places).
Charles Lackey operates a bakery in Idaho Falls, Idaho. Because of its excellent product and excellent location, demand has increased by 45%in the last year. On far too many occasions, customers have not been able to purchase the bread of their choice. Because of the size of the store, no new ovens can be added. At a staff meeting, one employee suggested ways to load the ovens differently so that more loaves of bread can be baked at one time. This new process will require that the ovens be loaded by hand, requiring additional manpower. This is the only production change that will be made in order to meet the increased demand.The bakery currently makes 1,800 loaves per month. Employees are paid $8 per hour. In addition to the labor cost, Charles also has a constant utility cost per month of $650 and a per loaf ingredient cost of $0.40. After increasing the number of work hours to 928 per month,what is the multifactor productivity =? loaves/dollar (round your response to…