TIME STUDY
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Time study is a work measurement technique that determines the time for a qualified worker to complete a task at a defined level of performance. It involves observing and recording the time required by a worker to perform individual tasks in their regular work. The objectives of time study include increasing productivity, setting labor standards, and determining basic and standard times. It is used to analyze elements of a job, set performance standards, and improve work methods and processes.
TIME STUDY
- 1. Time Study Presented by:- Chhavi Narayan Khushboo singh Abhishek sahoo Dhondup
- 2. CONTENTS • Introduction • Objectives of Time study • Advantages • Time study by stop watch • Diff between Time and Motion study • Type of Elements • Methods • Sample calculation • Computation of NT & ST • Applications • Conclusion
- 3. INTRODUCTION WORK STUDY:- Motion study Time study:- o A qualified, well trained operator o Normal pace o Doing a specific task
- 4. OBJECTIVES OF TIME STUDY • To increase productivity To set labour standard for satisfactory performance. To determine basic times/normal times. To determine the number of machines an operator can handle. To determine standards costs.
- 5. Advantages To develop suitable working conditions To improve utilization of resources To reduce human effort by proper design of processes
- 6. TIME STUDY MOTION STUDY Notes the time involved in carrying out each element of operation. Aims at fixing the standard time for carrying out a job. Is not suitable for workers where quality is prime consideration Study of motions on an operation To reduce wastage of time Suitable for all types of jobs. Diff between time & motion study
- 8. Types of elements involved in a job Repetitive element:- Occurs in every work cycle of the job. Occasional element:- Occurs at intervals. Constant element:- Basic or normal time remains constant. Variable element:- Basic or normal time varies. Manual element:- Performed manually. Governing element :- Occupies a longer time than any other element.
- 10. Methods 1.Predetermined time standard system 2.Stop watch reading a) Continuous b) Snap-back 3.Work sampling
- 12. Sample calculation 1. E=2√ 𝒑(𝟏−𝒑) 𝒏 2. 𝒏 = 𝟒𝒑(𝟏−𝒑) 𝑬 𝟐 P=proportion of phoning of activity E=error n=sample size Que. A preliminary study indicates that the proportion of idle time of a machine is 30% ; rest of the time it is working . To get a good estimate of the idle time with a precision of ±1% , then what should be the sample size? n= 4(0.30)(1−0.30) (0.01)2 =8400
- 13. Computation of NT & ST Work element a b c d* Obs. rating 0.56min 0.25min 0.50min 1.10min Performanc e rating 100% 80% 110% 100% * Irregular element performed every 5 cycles PFD allowance=15% Normal time=0.56(1.0)+0.25(0.80)+0.50(1.10)+1.10(1.0)/5=1.53min Standard time=1.53(1+0.15)=1.76
- 14. Applications In decision making Provides accuracy Organisation and method
- 15. Conclusion