Measurement of labor productivity in construction at the field using the work sampling method

Abstract

Labor productivity is increasingly showing its importance, being one of the factors that plays an important role in development, demonstrating the capacity of each business, each industry and each country. This article introduces the use of work sampling method to measure and predict labor productivity in construction at the site. This method is based on statistical principles to evaluate the proportion of useful time to create a product. Work sampling is used for evaluation to improve work performance, thereby increasing work efficiency. Experimental research was conducted at a number of high-rise building projects under construction in Hai Phong city.