Utilize este identificador para referenciar este registo: http://hdl.handle.net/10362/10194
Título: Bullwhip effect, in production control: a comparison between traditional methods and LPS
Autor: Pereira, Pedro
Cachadinha, Nuno
Zegarra, Omar
Alarcón, Luis
Palavras-chave: Bullwhip effect
Production control
Last planner system
Variability
Planning
Management
Data: Jul-2013
Resumo: Last Planner System (LPS) has produced good results in reducing production time of construction projects, increasing productivity and mitigating the variability that is inherent to construction management. However, the Percent Plan Complete (PPC) rates usually obtained are still far from the ideal value of 100%. This study evaluates the hypothesis that the Bullwhip Effect (BWE) – the cumulative distortion of variability - exists in traditional control methods, which don’t have explicit and systematized mechanisms for variability reduction in production control, but also in LPS. To verify this hypothesis a method was formulated to extend the scope of the detection and quantification of the BWE in projects using LPS to traditional production control system (TPCS) methods. It was concluded that the BWE exists in both production control systems – Traditional and LPS’s – and that the BWE is not necessarily bigger in the traditional -system, even though the variability associated is much higher. The use of a BWE index is proposed as a tool for monitoring and controlling variability of production control in construction projects, as well as the utilization of this index as a Key Performance Indicator (KPI) that provides the stakeholders with a deeper control of the variability in both production systems.
Descrição: 21th Annual Conference of the International Group for Lean Construction (IGLC 21), July 2013, Fortaleza, Brazil
Peer review: yes
URI: http://hdl.handle.net/10362/10194
Aparece nas colecções:FCT: DEC - Documentos de conferências internacionais

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