Lean Construction

from Wikipedia, the free encyclopedia

Lean Construction is the adaptation of the lean principles from the Toyota production system to the construction sector. In addition to the term lean construction, the term lean management is also used in construction.

definition

During the creation of a construction project, a continuous process of eliminating waste, reaching or exceeding all customer expectations, focusing on the entire value stream and striving for perfection. Lean Construction considers the entire life cycle of a building, from planning to construction and use to rededication and demolition.

Lean Construction

Lean Construction is an integral approach to planning, designing and executing construction projects. Lean Construction (LC) has its roots in Lean Production, which has revolutionized the design and planning of processes in production, procurement and assembly in some areas of the economy. Lean Construction is also based on Lean Thinking approaches that are oriented towards the value creation process in order to maximize value and minimize waste in the processes. With the help of specific techniques and tools, such as B. the Last Planner System, the Lean philosophy is transferred to the planning and execution of construction projects. The application of Lean Construction is characterized by:

  • The planning and its execution processes are considered and designed holistically in order to better meet the client's needs.
  • Work is organized throughout the process in a way that maximizes value for customers and reduces waste.
  • The optimization efforts focus on improving the overall performance of the project, rather than on optimizing individual sub-areas.
  • Processes are controlled with foresight in order to reduce variances in the performance of the individual process steps and thus ensure a constant flow of production.

Last Planner System

The Last Planner System is a project management tool specially developed for the construction industry to implement the lean concept. The aim is to improve the reliability of processes through structured, forward-looking and cooperative planning with the involvement of the last planner ("last planner"). In construction, for example, these are the foremen of the trades involved. The Last Planner System can be used in planning and construction processes. The implementation of the Last Planner system takes place collaboratively in five stages, so that the process planning is structured:

  • Analysis of the overall process
  • Establishing the milestones
  • Production planning for the coming weeks
  • Joint detailed discussion of the next upcoming (production) week
  • Evaluation of the previous (production) week

In the first stage, the necessary process steps are determined and put in a logical order. Above all, you should pay attention to dependencies. In the next step, the higher-level dates (milestones) are discussed and determined and assigned to the processes. The next six weeks are then planned on a weekly basis and the procedure discussed (see production planning ). Finally, the next week will be discussed again in great detail by all those involved, so that a trouble-free construction process is ensured. The last point, the evaluation, looks back on the last week. The aim of the evaluation is to make the disruptions and the resulting delays and the reasons for them transparent and to learn from them.

literature

  • Gehbauer, Fritz, Lean Management in Construction - Basics , White Paper of the Institute for Technology and Management in Construction, Karlsruhe Institute of Technology
  • Womack, James; Jones, Daniel, Lean Thinking , Campus Verlag Frankfurt, New York, Frankfurt 2004
  • Gehbauer, Fritz; Kirsch, Jürgen, Lean Construction - Increase in productivity through "lean" building processes , Civil Engineer 81 (2006), p. 504
  • Simon, Stefan; Schriek, Thomas; Gehbauer, Fritz; Dittmann, Marc, Last Planner, an instrument for building projects based on the principles of lean management , yearbook 2009 Bautechnik, Verein Deutscher Ingenieure, VDI-Gesellschaft Bautechnik, pp. 116–143
  • Kaiser, Jörg; Zikas, Theodoros, Lean Management in Roads and Civil Engineering , Tiefbau 53 (2009) H. 5, P. 290
  • Sunday, Gerolf; Hickethier, Gernot, New Elan for Project Contracts: Lean Management in Construction , Yearbook Construction Law 2011, p. 159
  • Fiedler, Martin (Ed.), Lean Construction: Das Managment Handbuch , Springer Verlag, 2017

Web links

Individual evidence

  1. ^ Koskela, Lauri: Application of the New Production Philosophy to Construction . Technical Report # 72, Center for Integrated Facility Engineering, Department of Civil Engineering, Stanford University, USA, 1992. Available at http://www.leanconstruction.org/pdf/Koskela-TR72.pdf
  2. ↑ Ballard, Glenn; Howell, Gregory: Lean Project Management , Building Research & Information 31 (2), pp. 119-133, 2003.
  3. ↑ The term "Lean Production" was coined by James Womack, Daniel Jones and Daniel Roos in The Machine that changed the world: The story of Lean Production , Rawson Associates, 1990.
  4. ↑ Womack, James; Jones, Daniel: Lean Thinking: Banish Waste and Create Wealth in your organization , Simon & Schuster, 1996.
  5. ↑ cf. Ballard, Glenn; Howell, Gregory: Lean Project Management , Building Research & Information 31 (2), pp. 119-133, 2003, and Gehbauer, Fritz; Kirsch, Jürgen, Lean Construction - Increase in productivity through "lean" building processes , Civil Engineer 81 (2006), p. 504
  6. ↑ Ballard, Glenn: The Last Planner System of Production Control , Ph.D. Dissertation, University of Birmingham, UK, 2000.
  7. ↑ Ballard, Glenn: Managing work flow on design projects: a case study , Engineering Construction and Architectural Management, 9 (3), pp. 284 - 291, 2002.