Measuring Productivity of Construction Activities As A Basis to Improve Productivity Performance of Buildings and Construction Projects (Local Experience)
Abstract
Productivity and the need for its development is one of the main challenges that faces the construction industry and is a dominant issue in decision making in the field of construction management. The most reliable measure of productivity is the output per work-hour achieved by the workers on construction site. The research aims to improve the management efficiency of the project through the application of productivity measurement systems at the construction activities level, and the development of mathematical formulas for certain types of construction activities that help in developing a methodology for planning of productivity estimations for such activities.
The research sample of the case study focused on monitoring some typical construction activities during finishing stage as plastering and floor tiling, in which manual work share in these activities are relatively high.
The statistical handling of the collected data showed that we can measure the productivity of construction activity through multiple linear Regression Relations with a high level of confidence, by measuring the changes related to a number of workers, actual working hours and wasted time. The results of work sampling showed that time wasting rate of observed activity reached high rate equal to 33% out of the total working time. Therefore deep studies of these activities should be carried out, including methods, time wasting analysis, and the type of effecting problems for the purpose of handling and improving.
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