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Aleithawe, I, Sinno, R R and McAnally, W H (2012) Right-of-Way Acquisition Duration Prediction Model for Highway Construction Projects. Journal of Construction Engineering and Management, 138(04), 540–4.
Ashuri, B, Kashani, H, Molenaar, K R, Lee, S and Lu, J (2012) Risk-Neutral Pricing Approach for Evaluating BOT Highway Projects with Government Minimum Revenue Guarantee Options. Journal of Construction Engineering and Management, 138(04), 545–57.
Chen, Q and Jin, R (2012) Safety4Site Commitment to Enhance Jobsite Safety Management and Performance. Journal of Construction Engineering and Management, 138(04), 509–19.
Dyer, B, Goodrum, P M and Viele, K (2012) Effects of Omitted Variable Bias on Construction Real Output and Its Implications on Productivity Trends in the United States. Journal of Construction Engineering and Management, 138(04), 558–66.
Fortunato, B R, Hallowell, M R, Behm, M and Dewlaney, K (2012) Identification of Safety Risks for High-Performance Sustainable Construction Projects. Journal of Construction Engineering and Management, 138(04), 499–508.
Hwang, B and Ho, J W (2012) Front-End Planning Implementation in Singapore: Status, Importance, and Impact. Journal of Construction Engineering and Management, 138(04), 567–73.
Kog, Y C and Loh, P K (2012) Critical Success Factors for Different Components of Construction Projects. Journal of Construction Engineering and Management, 138(04), 520–8.
Li, X and Chen, X (2012) Using Grouting of Shield Tunneling to Reduce Settlements of Overlying Tunnels: Case Study in Shenzhen Metro Construction. Journal of Construction Engineering and Management, 138(04), 574–84.
Orabi, W and El-Rayes, K (2012) Optimizing the Rehabilitation Efforts of Aging Transportation Networks. Journal of Construction Engineering and Management, 138(04), 529–39.
Rahman, M M and Kumaraswamy, M M (2012) Multicountry Perspectives of Relational Contracting and Integrated Project Teams. Journal of Construction Engineering and Management, 138(04), 469–80.
Wambeke, B W, Liu, M and Hsiang, S M (2012) Using Last Planner and a Risk Assessment Matrix to Reduce Variation in Mechanical Related Construction Tasks. Journal of Construction Engineering and Management, 138(04), 491–8.
- Type: Journal Article
- Keywords: Labor; Productivity; Construction management; Risk management; Variation; Labor productivity; Construction; Risk; Last planner;
- ISBN/ISSN: 0733-9364
- URL: https://doi.org/10.1061/(ASCE)CO.1943-7862.0000444
- Abstract:
Variation, defined for this research as the time difference between what was planned and what actually happened, is important as it can affect the productivity performance of construction tasks. The construction process is complex and consists of a large number of interdependent tasks. When the starting time and/or duration of one task varies, it can affect other downstream tasks and result in disruptions to the schedule and/or decreased productivity. This research examined the effect of using a risk assessment matrix in conjunction with the Last Planner System (LPS) method to reduce and/or eliminate task duration variation. A case study was conducted involving a mechanical contractor who specializes in plumbing, heating, ventilation, and air conditioning. The company compared the performance of two separate, but similar projects. The LPS method was used with one of the projects and the company’s traditional planning system was used with the other (i.e., not using the LPS system). A total of 16 weeks’ worth of data was collected for each project. Variation, productivity, and cost savings were analyzed using a risk assessment matrix and benefit–cost procedures. The project that used the LPS method had a 35% higher productivity performance than the traditionally planned project and resulted in a benefit–cost ratio of
Woldesenbet, A, Jeong, & H S and Oberlender, G D (2012) Daily Work Reports–Based Production Rate Estimation for Highway Projects. Journal of Construction Engineering and Management, 138(04), 481–90.