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Bakht, M N and El-Diraby, T E (2015) Synthesis of Decision-Making Research in Construction. Journal of Construction Engineering and Management, 141(09).

Francom, T C and El Asmar, M (2015) Project Quality and Change Performance Differences Associated with the Use of Building Information Modeling in Design and Construction Projects: Univariate and Multivariate Analyses. Journal of Construction Engineering and Management, 141(09).

Kim, H, Lee, H, Park, M, Ahn, C R and Hwang, S (2015) Productivity Forecasting of Newly Added Workers Based on Time-Series Analysis and Site Learning. Journal of Construction Engineering and Management, 141(09).

  • Type: Journal Article
  • Keywords: Productivity forecasting; Site-learning effect; Time-series analysis; Schedule delay; Quantitative methods;
  • ISBN/ISSN: 0733-9364
  • URL: https://doi.org/10.1061/(ASCE)CO.1943-7862.0001002
  • Abstract:
    Adding new laborers during construction is usually considered the easiest option to execute when a schedule delay occurs in a construction project. However, determining the proper number of new laborers to add is quite challenging because newly added laborers’ short-term productivity for their first several production cycles could be significantly different from that of existing laborers. While existing studies suggest that newly added laborers’ site-learning may cause such a difference, this process has not been considered when forecasting newly added laborers’ short-term productivity. In this context, this study presents a method that takes into account site-learning effects and the periodic characteristics of newly added laborers’ short-term productivity. The periodic characteristics of productivity are analyzed based on a time-series model of existing laborers’ productivity. Then, the impact of the site-learning effect on the productivity is considered based on existing learning-effect theory. An illustrative example demonstrates the accuracy and usefulness of the presented method. Its results indicate that the consideration of the site-learning effect prevents the frequent and counterproductive underestimation of the required number of newly added laborers in establishing an accelerated recovery schedule.

O’Connor, J T, O’Brien, W J and Choi, J O (2015) Standardization Strategy for Modular Industrial Plants. Journal of Construction Engineering and Management, 141(09).

Park, M, Elsafty, N and Zhu, Z (2015) Hardhat-Wearing Detection for Enhancing On-Site Safety of Construction Workers. Journal of Construction Engineering and Management, 141(09).

Saurin, T A, Formoso, C T, Reck, R, Beck da Silva Etges, B M and Ribeiro, J L D (2015) Findings from the Analysis of Incident-Reporting Systems of Construction Companies. Journal of Construction Engineering and Management, 141(09).

Ye, K, Zhu, W, Shan, Y and Li, S (2015) Effects of Market Competition on the Sustainability Performance of the Construction Industry: China Case. Journal of Construction Engineering and Management, 141(09).