Industrial Engineering and Production Management
Travel charts provide

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

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Industrial Engineering and Production Management
Pick up the incorrect statement about advantages of work sampling

Simultaneous study of many operators may be made by a single observer
Calculations are easier, method is economical and less time consuming
No time measuring devices are generally needed
Permits a fine breakdown of activities and delays

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