Industrial Engineering and Production Management
Travel charts provide

An approximate estimate of the handling which must be done at a particular station
An idea of the flow of materials at various stages
The information for changes required in rearranging material handling equipment
A compact estimate of the handling which must be done between various work sections

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Industrial Engineering and Production Management
Work sampling is applied for

All of these
Estimating the percentage of the time consumed by various job activities
Finding out time standards, specially where the job is not repetitive and where time study by stop watch method is not possible
Estimation of the percentage utilization of machine tools

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