TY - CONF TI - Production Practices for High Reliability in Concrete Construction C1 - San Diego, California, USA C3 - 20th Annual Conference of the International Group for Lean Construction PY - 2012 AU - Memarian, Babak AU - Mitropoulos, Panagiotis AD - PhD Candidate, Del E Webb School of Construction, Arizona State University, 651 E University Dr, USE bldg., Tempe, AZ 85287, Babak.Memarian@asu.edu AD - Associate Professor, Department of Civil, Construction, and Environmental Engineering, San Diego State University, 5500 Campanile Dr, San Diego, CA 92182, pmitropoulos@mail.sdsu.edu ED - Tommelein, Iris D. ED - Pasquire, Chrisitne L. AB - This study examined the production control practices that a high-reliability supervisor used to accelerate the schedule and minimize waste during the construction of a 10- story cast-in-place concrete building. A “high-reliability” supervisor is one who has consistently exceptional performance in both productivity and safety. From a lean construction perspective, this case study is concerned with the production control practices that achieved an accelerated schedule, while minimizing waste and maintaining high levels of safety. The authors collected extensive data from the project including interviews with the supervisor and the work crew, and regular work observations over a period of eight weeks. The paper describes the project and project demands, the activities and work sequence. The findings highlight that in order to meet the aggressive milestones, the supervisor used several production control strategies that created a highly reliable work process. These strategies included: specializing in “product lines” (horizontal and vertical concrete elements), reducing product variety (the number of different concrete mix designs), standardizing the work process, emphasizing manpower reliability and predictability (e.g., minimizing absenteeism), reducing task complexity and time pressures (by simplifying and decoupling tasks), preventing errors, exploiting limited resources (in this case the crane), etc. As a result, the case findings identify specific production control practices that minimizing waste and reduce cycle time. KW - Production system design KW - production planning KW - time compression KW - safety KW - high-reliability supervisor. PB - T2 - 20th Annual Conference of the International Group for Lean Construction DA - 2012/07/18 CY - San Diego, California, USA L1 - http://iglc.net/Papers/Details/807/pdf L2 - http://iglc.net/Papers/Details/807 N1 - Export Date: 20 April 2024 DB - IGLC.net DP - IGLC LA - English ER -