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Labor Productivity Improvement Techniques Essay

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Labor Productivity Improvement Techniques
Dr. Mohammad S. El-Mashaleh

Dept. of Civil Eng. University of Jordan

Construction Methods Fall 2011 Dr. Mohammad El-Mashaleh
1

Labor productivity improvement techniques
• (I) These include: Activity sampling

(II) Crew balance charts

Dept. of Civil Eng. University of Jordan

Construction Methods Fall 2011 Dr. Mohammad El-Mashaleh
2

(I) Activity Sampling

Dept. of Civil Eng. University of Jordan

Construction Methods Fall 2011 Dr. Mohammad El-Mashaleh
3

Activity sampling
• Three approaches to activity sampling:

(1) Field ratings (2) Productivity ratings (3) 5-minute ratings

Dept. of Civil Eng. University of Jordan

Source: Oglesby et al. (1989)

Construction Methods Fall 2011 Dr. Mohammad El-Mashaleh
4

(1) Field ratings
• Field ratings are based on taking observations of labor • Observations are recorded based on two settings only: • Working • Not working
Dept. of Civil Eng. University of Jordan Construction Methods Fall 2011 Dr. Mohammad El-Mashaleh
5

• In other words, the observations indicate: • Number of labor who is engaged in useful work • Number of labor who is not engaged in a useful activity

Dept. of Civil Eng. University of Jordan

Construction Methods Fall 2011 Dr. Mohammad El-Mashaleh
6

Basic operating rules for simple field ratings
1. All those to be covered by the survey should be observed 2. At least 75% of the personnel must be in the sample to get dependable results

Dept. of Civil Eng. University of Jordan

Construction Methods Fall 2011 Dr. Mohammad El-Mashaleh
7

3. The rating should be taken at the first instant of observation. The observer should not bias the result by speculating about whether or not the subject was or will be active a moment before or after observation

Dept. of Civil Eng. University of Jordan

Construction Methods Fall 2011 Dr. Mohammad El-Mashaleh
8

4. To record normal activity for a project or crew,...

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