Lean construction is a combination of operational research and practical development in design and construction with an adoption of lean manufacturing principles and practices to the end-to-end design and construction process. Lean Construction required the application of a robust programmatic framework to all repair, renovation, maintenance, and or new build activities. While each project may be unique, the application of LEAN fundamental should be applied consistently. Lean Construction is concerned with the alignment and holistic pursuit of concurrent and continuous improvements in all dimensions of the built and natural environment: design, construction, activation, maintenance, salvaging, and recycling (Abdelhamid 2007, Abdelhamid et al. 2008). This approach tries to manage and improve construction processes with minimum cost and maximum value by considering customer needs. (Koskela et al. 2002)
75-448: The origins of many fundamental concepts of LEAN and LEAN construction date back in time. Lauri Koskela, in 1992, challenged the construction management community to consider the inadequacies of the time-cost-quality tradeoff paradigm. Another paradigm-breaking anomaly was that observed by Ballard (1994), Ballard and Howell (1994a and 1994b), and Howell (1998). Analysis of project plan failures indicated that "normally only about 50% of
150-460: A "low-bid" contract), but with adjustments in responsibility for the CM. The advantage of a CM at-risk arrangement is budget management. Before a project's design is completed (six to eighteen months of coordination between designer and owner), the CM is involved with estimating the cost of constructing a project based on the goals of the designer and owner (design concept) and the project's scope. In balancing
225-663: A Construction Manager fall into the following 7 categories: Project Management Planning, Cost Management, Time Management, Quality Management, Contract Administration, Safety Management, and CM Professional Practice. CM professional practice includes specific activities such as defining the responsibilities and management structure of the project management team, organizing and leading by implementing project controls, defining roles and responsibilities, developing communication protocols, and identifying elements of project design and construction likely to give rise to disputes and claims. The functions of construction management typically include
300-436: A bidder. In a design-build contract the contractor is established at the outset, and construction activities can proceed concurrently with the design. The third major advantage is that the design-build contractor has an incentive to keep the combined design and construction costs within the owner's budget. If speed is important, design and construction contracts can be awarded separately; bidding takes place on preliminary plans in
375-439: A builder (usually known as a general contractor ). There are traditionally two contracts between these parties as they work together to plan, design and construct the project. The first contract is the owner-designer contract, which involves planning, design, and construction contract administration. The second contract is the owner-contractor contract, which involves construction. An indirect third-party relationship exists between
450-415: A monthly basis but could be modified to meet certain milestones. Progress payments are an important part of contract administration for the contractor. Proper preparation of the information necessary for payment processing can help the contractor financially complete the project. Once the owner moves into the building, a warranty period begins. This is to ensure that all materials, equipment, and quality meet
525-436: A not-to-exceed contract instead of a single firm design-build contract. The major problem with design-build contracts is an inherent conflict of interest. In a standard contract the architect works for the owner and is directly responsible to the owner. In design-build teaming agreement, the architect works for the design-builder, not the owner, therefore the design-builder may make design and construction decisions that benefit
600-424: A number of reasons for that. The body of knowledge has been in a state of development since 1990. Nonetheless, a definition is needed to be able to operationalize the concepts and principles contained in the philosophy. It is insightful to study the change of definition over time as that represents the evolution and advancement in the state of knowledge about Lean Construction. The reference to Lean Construction as
675-619: A possibility of changing in scope, or have strict schedule deadlines. Additionally, it is an efficient method in projects containing technical complexity, multi-trade coordination, or multiple phases. Starting with its Accelerated Bridge Program in the late 2000s, the Massachusetts Department of Transportation began employing accelerated construction techniques, in which it signs contracts with incentives for early completion and penalties for late completion, and uses intense construction during longer periods of complete closure to shorten
750-676: A proper noun is not an attempt to falsely distinguish it from other areas that focus on construction project management. It is a proper noun because it refers to a very specific set of concepts, principles, and practices that are distinct from conventional design and construction management practices . A number of groups have proposed definitions: The International Group for Lean Construction; The Lean Construction Institute; The Associated General Contractors of America; Construction Management Association of America, and others. Researchers have also put forward definitions as foundation for their work and to invite others to add, modify and critique. A sampling
825-452: A region should be understood as a large territory of the country with more or less homogeneous natural conditions, and mainly - a characteristic orientation of production forces. L. James and J. Martin adhere to the same point of view. Economics focuses on measurable ways of describing social behavior. In orthodox neoclassical synthesis economics, there are two main kinds of recognized economic thinking – micro-economics, which focuses on
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#1732852370448900-665: A science, began to take shape back in the 19th century. Among the researchers, the most notable contribution to the development of problems of regional economic theory, issues of the location of production forces and the efficiency of regional production was made by German economists - Johann Heinrich Thünen, Alfred Weber, Walter Kristaller, August Lesch, professor of economics at the University of Pennsylvania Walter Isard, French economist Jean Chardonnay, American economist of Russian origin Vasily Leontiev, V. Thompson, T. Palander, as well as
975-410: A system of indicators (for example, gross regional product, etc.). This means that the search for the efficiency of the country's economy should be carried out not only at the level of enterprises and the state, but also at the level of regions. By regions, mesoeconomics does not always mean an administrative-territorial unit (as V. Leontyev and W. Izard believe). N.N. Nekrasov believes that in this case
1050-407: Is a delivery method which entails a commitment by the construction manager to deliver the project within a Guaranteed Maximum Price (GMP). The construction manager acts as a consultant to the owner in the development and design phases (preconstruction services), and as a general contractor during construction. When a construction manager is bound to a GMP, the fundamental character of the relationship
1125-446: Is a schedule of when (according to project milestones or specified dates) contractors and suppliers will be paid for the current progress of installed work. Progress payments or interim payments are partial payments for work completed during a portion of a construction period, usually a month. Progress payments are made to general contractors, subcontractors, and suppliers as construction projects progress. Payments are typically made on
1200-667: Is available from ABET , the American Council for Construction Education (ACCE), the American Academy of Project Management (AAPM), the Construction Management Association of America (CMAA) or the Associated Schools of Construction (ASC). According to the American Council for Construction Education (one of the academic accreditation agencies responsible for accrediting construction management programs in
1275-534: Is changed. In addition to acting in the owner's interest, the construction manager must control construction costs to stay within the GMP. CM at-risk is a global term referring to the business relationship of a construction contractor, owner and architect (or designer). Typically, a CM at-risk arrangement eliminates a "low-bid" construction project. A GMP agreement is a typical part of the CM-and-owner agreement (comparable to
1350-581: Is conceptualized in three complementary ways, namely, as a Transformation (T), as a Flow (F), and as Value generation (V). Koskela and Howell (2002) also presented a review of existing management theory – specifically as related to the planning, execution, and control paradigms – in project-based production systems. Both conceptualizations provide a solid intellectual foundation of lean construction as evident from both research and practice (Abdelhamid 2004). Recognizing that construction sites reflect prototypical behavior of complex and chaotic systems, especially in
1425-529: Is hired for the following deliverables means and methods, communications with the authority having jurisdiction, time management , document control , cost controls and management, quality controls, decision making , mathematics , shop drawings , record drawings and human resources . In the US, the Construction Management Association of America (CMAA) states the most common responsibilities of
1500-418: Is motivated to work with the architect to develop a practical design. The team can find creative ways to reduce construction costs without reducing the function of the final product. The second major advantage involves the schedule. Many projects are commissioned within a tight time frame. Under a traditional contract, construction cannot begin until after the design is finished and the project has been awarded to
1575-437: Is over-designed to increase profits for the design-builder, or a building built with lesser-quality products to maximize profits. However, incentive clauses are written into the contract to mitigate these issues. A project delivery method where the construction company takes full responsibility for a project. The construction industry typically includes three parties: an owner, a licensed designer ( architect or engineer ) and
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#17328523704481650-411: Is provided here. Lean Construction is a “way to design production systems to minimize waste of materials, time, and effort in order to generate the maximum possible amount of value," (Koskela et al. 2002). Designing a production system to achieve the stated ends is only possible through the collaboration of all project participants (Owner, A/E, contractors, Facility Managers, End-user) at early stages of
1725-440: Is setting up long-term relationships based on improving the value of what the supply chain delivers, improving quality and reducing underlying costs through taking out waste and inefficiency. This is the opposite of 'business as usual' in the construction sector, where people do things on project after project in the same old inefficient ways, forcing each other to give up profits and overhead recovery in order to deliver at what seems
1800-484: Is sometimes referred to as an "Owner's Representative." The CM's role is to represent the interests of the Owner throughout the various phases of a project beginning as early as feasibility studies and conceptual planning of the project. Construction Managers help to inform good decision making on behalf of the owner through planning, design, permitting, construction contract procurement, and during construction. A primary role of
1875-657: Is to: Solutions that integrate construction planning, procurement, and project delivery are now readily available. The enable lean methods such as Integrated Project Delivery (IPD) and Job Order Contracting (JOC). The early involvement of contractors and suppliers is seen as a key differentiator for construction so called 'best practice'. While there are Trade Marked business processes (see below), academics have also addressed related concepts such as 'early contractor involvement' (ECI). Using IPD, project participants can overcome key organizational and contractual problems. The IPD approach to contracting aligns project objectives with
1950-420: Is typically hired as a personal or professional, qualifications-based service rather than as a bid. Costs are based on a guaranteed maximum price or fixed price, and substantiated by level of effort or staffing plan that identifies the hours per service task to be provided, and based on individual billable hourly rates of proposed project-assigned staff. Construction cost management is a fee-based service in which
2025-539: The CMAA , in its Sixth Annual Survey of Owners (2006), pointed to concern about work methods and the cost of waste: "While the cost of steel and cement are making headlines, the less publicized failures in the management of construction projects can be disastrous. Listen carefully to the message in this comment. We are not talking about just materials, methods, equipment, or contract documents. We are talking about how we work to deliver successful capital projects and how we manage
2100-480: The Project Management Institute (PMI) approach to construction. These include: Construction management Construction management ( CM ) aims to control the quality of a project's scope, time, and cost (sometimes referred to as a project management triangle or "triple constraints") to maximize the project owner's satisfaction. It uses project management techniques and software to oversee
2175-545: The CM is to ensure the terms of the Construction Contract are fulfilled by the Contractor. A CM can be an individual or company focused on providing construction management services. A CM typically does not hold the contracts of the project design firms or construction firms but assists or leads the effort on behalf of the Owner to procure those services and ensure successful execution of those contracts' terms. A CM firm
2250-486: The CM's ability to effect cost savings diminishes. The agency CM can represent the owner by helping select the design and construction teams and managing the design (preventing scope creep ), helping the owner stay within a predetermined budget with value engineering, cost-benefit analysis and best-value comparisons. The software-application field of construction collaboration technology has been developed to apply information technology to construction management. CM at-risk
2325-428: The U.S.), the academic field of construction management encompasses a wide range of topics. These range from general management skills, through management skills specifically related to construction, to technical knowledge of construction methods and practices. There are many schools offering Construction Management programs, including some offering a master's degree. Capital project management software (CPMS) refers to
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2400-426: The action of individual buyers and sellers responding to signals sent by price to set production and distribution of effort, and macroeconomics, which focuses on how whole economies go through cycles of activity, and how different large aggregate sectors relate to each other. Mesoeconomic thinking argues that there are important structures which are not reflected in price signals and supply and demand curves, nor in
2475-528: The actions of individual buyers and sellers in response to signals sent by the supply and demand ratio to establish production and allocate resources, and macroeconomics, which focuses on how the economy generally goes through cycles of activity and how the various large industries relate to each other. Mesoeconomic thinking argues that the country's economy is not a two-, but a three-tier structure. The regional economy has not only its own "floor", its own research area, but, accordingly, its own range of problems and
2550-526: The authors of the famous textbooks H. Armstrong and J. Taylor. Among Soviet researchers of the first half of the 20th century, G.M. Krzhizhanovsky, I.G. Alexandrova, V.V. Kuibyshev, N.N. Nasrudin Nasri, who dealt with long-term planning and economic zoning. Among the Russian scientists of the second half of the 20th century, research in the field of regional distribution, the creation of territorial production complexes and
2625-408: The basis of Lean Construction. The view of Lauri Koskela, Greg Howell, and Glenn Ballard is very different, with the origin of lean construction arising mainly from the need for a production theory in construction and anomalies that were observed in the reliability of weekly production planning . Getting work to flow reliably and predictably on a construction site requires the impeccable alignment of
2700-706: The benefits of the Master Builder concept (Abdelhamid et al. 2008). "One can think of lean construction in a way similar to mesoeconomics . Lean construction draws upon the principles of project-level management and upon the principles that govern production-level management. Lean construction recognizes that any successful project undertaking will inevitably involve the interaction between project and production management." (Abdelhamid 2007) Lean construction supplements traditional construction management approaches with (Abdelhamid 2007): (1) two critical and necessary dimensions for successful capital project delivery by requiring
2775-517: The book by V.M. Torosov. "Mesoeconomics" (regional. Economics) of 2004 ("The best scientific book of Russia in 2004", devoted to the problems of economics [1]), Mann 2011 [2] and Eng 1987, [3] most accurately determine the field of application of mesoeconomics. As of 2014, 474 articles and books have been written on this topic. Mesoeconomics is not a generally recognized term, in contrast with microeconomics or macroeconomics . Several books on this topic including Mann in 2011 and Ng in 1987 help define
2850-590: The breakthroughs actually went much further. (Note: The founders of the Lean Construction Institute in 1997) both maintain that Construction in Lean Construction refers to the entire industry and not the phase during which construction takes place. Thus, Lean Construction is for owners, architects, designers, engineers, constructors, suppliers & end users.) In any case, the term Lean Construction has escaped canonical definition. There has been
2925-469: The comprehensive and detailed process-based toolset was published in 2000 as the 'Building Down Barriers Handbook of Supply Chain Management-The Essentials'. The project demonstrated very clearly that lean thinking would only deliver major performance improvements if the construction sector learned from the extensive experience of other business sectors. Lean thinking must become the way that all
3000-407: The construction manager (CM) is responsible exclusively to the owner, acting in the owner's interests at every stage of the project. The construction manager offers impartial advice on matters such as: Comprehensive management of every stage of the project, beginning with the original concept and project definition, yields the greatest benefit to owners. As time progresses beyond the pre-design phase,
3075-411: The construction site. When water is introduced, mud is created. This mud sticks to the tires of the construction vehicles and is often lead out to the surrounding roads. A street sweeper may clean the roads to reduce dirty road conditions. Project meetings take place at scheduled intervals to discuss the progress on the construction site and any concerns or issues. The discussion and any decisions made at
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3150-416: The construction team (known as the design-builder) is responsible for taking the owner's concept and completing a detailed design before (following the owner's approval of the design) proceeding with construction. Virtual design and construction technology may be used by contractors to maintain a tight construction time. There are three main advantages to a design-build contract. First, the construction team
3225-482: The contractor that they have chosen through the bidding process. A notice to proceed is when the owner gives permission to the contractor to begin their work on the project. The first step is to assign the project team which includes the project manager (PM), contract administrator, superintendent , and field engineer. During the pre-construction stage, a site investigation must take place. A site investigation takes place to discover if any steps need to be implemented on
3300-520: The costs of inefficiency." Koskela (2000) argued that the mismatch between the conceptual models and observed reality underscored the lack of robustness in the existing constructs and signaled the need for a theory of production in construction. Koskela then used the ideal production system embodied in the Toyota Production System to develop a more overarching production management paradigm for project-based production systems where production
3375-497: The costs, schedule, quality and scope of the project, the design may be modified instead of redesigned; if the owner decides to expand the project, adjustments can be made before pricing. To manage the budget before design is complete and construction crews mobilized, the CM conducts site management and purchases major items to efficiently manage time and cost. An at-risk delivery method is best for large projects—both complete construction and renovation—that are not easy to define, have
3450-412: The deliberate consideration of material and information flow and value generation in a production system; and (2) different project and production management (planning-execution-control) paradigms. While lean construction is identical to lean production in spirit, it is different in how it was conceived as well as how it is practiced. There is a view that "adaptation" of Lean Manufacturing/Production forms
3525-408: The design-builder, but that may not benefit the owner. During construction, the architect normally acts as the owner's representative. This includes reviewing the builder's work and ensuring that the products and methods meet specifications and codes. The architect's role is compromised when the architect works for the design-builder and not for the owner directly. Thus, the owner may get a building that
3600-410: The designer and the contractor, due to these two contracts. An owner may also contract with a construction project management company as an adviser, creating a third contract relationship in the project. The construction manager's role is to provide construction advice to the designer, design advice to the constructor on the owner's behalf and other advice as necessary. The construction project manager
3675-418: The efficiency of regional production: T.S. Khachaturova, Ya.G. Feigina, N.N. Nekrasov, A.G. Granberg, P.M. Alampieva, E.B. Alaeva, K.N. Bedrintseva, G.I. Granik, F.D. Zastavny, R.S. Livshits, K.I. Klimenko, Yu.K. Kozlova, A.M. Korneeva, V.V. Kistanova, A.G. Omarovsky, N.N. Oznobina, V.F. Pavlenko, M.M. Palamarchuk, Yu.G. Saushkina, E. D. Silaeva, N.I. Shraga and V.M. Torosov. Several books on this topic, including
3750-754: The entire supply chain responsible for constructed facilities such that value is maximized and waste is minimized. With such a broad scope, it is fair to say that tools found in Lean Manufacturing and Lean Production, as practiced by Toyota and others, have been adapted to be used in the fulfillment of Lean construction principles. TQM, SPC , six-sigma, have all found their way into lean construction. Similarly, tools and methods found in other areas, such as in social science and business, are used where they are applicable. The tools and methods in construction management, such as CPM and work breakdown structure, etc., are also utilized in lean construction implementations. If
3825-431: The expectations of the owner that are included within the contract. When construction vehicles are driving around a site or moving earth, a lot of dust is created, especially during the dryer months. This may cause disruption for surrounding businesses or homes. A popular method of dust control is to have a water truck driving through the site spraying water on the dry dirt to minimize the movement of dust within and out of
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#17328523704483900-459: The firms in the design and construction supply chain co-operate with each other at a strategic level that over-arches individual projects. In the aerospace sector, these long-term supply-side relationships are called a ' Virtual Company', in other business sectors they are called an 'Extended Lean Enterprise'. The UK 'Building Down Barriers Handbook of Supply Chain Management-The Essentials' states that: 'The commercial core of supply chain management
3975-602: The flow of both material and information on and off site, Bertelsen (2003a and 2003b) suggested that construction should be modeled using chaos and complex systems theory. Bertelsen (2003b) specifically argued that construction could and should be understood in three complementary ways: While the term lean construction may have been coined by the International Group for Lean Construction in its first meeting in 1993 (Gleeson et al. 2007). ) Greg Howell and Glenn Ballard, there are instances of rigorous LEAN process thinking all
4050-418: The following: A bid is given to the owner by construction managers that are willing to complete their construction project. A bid tells the owner how much money they should expect to pay the construction management company in order for them to complete the project. The stages of a typical construction project have been defined as feasibility , design , construction and operation , each stage relating to
4125-444: The general contractor if the company does all their own construction work. If the contractor does not do their own work, they obtain it through subcontractors. Subcontractors are contractors who specialize in one particular aspect of the construction work such as concrete, welding, glass, or carpentry. Subcontractors are hired the same way a general contractor would be, which is through the bidding process. Purchase orders are also part of
4200-647: The interests of key participants. IPD relies on participant selection, transparency and continuing dialog. Construction consumers might consider rethinking their contracting strategies to share more fully in the benefits. The IPD approach creates an organization with the ability to apply Lean Project Delivery (LPD) principles and practices. (Matthews and Howell 2005) There are at least five principal forms of contract that support lean construction Other papers explain Integrated Project Delivery (IPD) and IFoA. PPC2000, IFoA and 'alliancing agreements' were among
4275-410: The job site. This is in order to get the site ready before the actual construction begins. This also includes any unforeseen conditions, such as historical artifacts or environment problems. A soil test must be done to determine if the soil is in good condition to be built upon. The procurement stage is when labor, materials and equipment needed to complete the project are purchased. This can be done by
4350-410: The large economic measures of inflation , Gross Domestic Product , the unemployment rate , and other measures of aggregate demand and savings . The argument is that the intermediate scale creates effects which need to be described using different measurements, mathematical formalisms and ideas. While many economists using the term use game theory and evolutionary economic concepts, the converse
4425-496: The market price. What results is a fight over who keeps any of the meagre margins that result from each project, or attempts to recoup 'negative margins' through 'claims', The last thing that receives time or energy in this desperate, project-by-project gladiatorial battle for survival is consideration of how to reduce underlying costs or improve quality'. There are many differences between the Lean Construction (LC) approach and
4500-676: The meeting must be documented. Diaries, logs, and daily field reports keep track of the daily activities on a job site each day. Labor statements are required on a daily basis. Also list of Labor, PERT CPM are needed for labor planning to complete a project in time. Construction Management education comes in a variety of formats: formal degree programs (two-year associate degree ; four-year baccalaureate degree , master's degree , project management , operations management engineer degree , doctor of philosophy degree, postdoctoral researcher ); on-the-job-training; and continuing education and professional development. Information on degree programs
4575-470: The overall project duration and reduce cost. Mesoeconomics Mesoeconomics or Mezzoeconomics is a neologism used to describe the study of economic arrangements which are not based either on the microeconomics of buying and selling and supply and demand, nor on the macroeconomic reasoning of aggregate totals of demand, but on the importance of the structures under which these forces play out, and how to measure these effects. Mesoeconomics, as
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#17328523704484650-619: The planning, design, construction and closeout of a construction project safely, on time, on budget and within specifications. Practitioners of construction management are called construction managers . They have knowledge and experience in the field of business management and building science . Professional construction managers may be hired for large-scaled, high budget undertakings ( commercial real estate , transportation infrastructure , industrial facilities, and military infrastructure ), called capital projects. Construction managers use their knowledge of project delivery methods to deliver
4725-520: The proactive integration of construction planning, procurement, and project delivery with a focus on value outcomes for all participants and stakeholders In the UK, a major R&D project, Building Down Barriers , was launched in 1997 to adapt the Toyota Production System for use in the construction sector. The resulting supply chain management toolset was tested and refined on two pilot projects and
4800-410: The procurement stage. The construction stage begins with a pre-construction meeting brought together by the superintendent (on an American project). The pre-construction meeting is meant to make decisions dealing with work hours, material storage, quality control, and site access. The next step is to move everything onto the construction site and set it all up. A contractor progress payment schedule
4875-421: The project life cycle. Feasibility and design involves four steps: programming and feasibility, schematic design, design development, and contract documents. It is the responsibility of the design team to ensure that the design meets all building codes and regulations. It is during the design stage that the bidding process takes place. The pre-construction stage begins when the owner gives a notice to proceed to
4950-485: The project optimally. Contractors are assigned to a construction project during the design or once the design has been completed by a licensed architect or a licensed civil engineer. This is done by going through a bidding process with different contractors. As dictated by the project delivery method, the contractor is selected by using one of three common selection methods: low-bid selection, best-value selection, or qualifications-based selection. A construction manager
5025-454: The project. This goes beyond the contractual arrangement of design/build or constructability reviews where contractors, and sometime facility managers, merely react to designs instead of informing and influencing the design (Abdelhamid et al. 2008). Lean Construction recognizes that desired ends affect the means to achieve these ends, and that available means will affect realized ends (Lichtig 2004). Essentially, Lean Construction aims to embody
5100-422: The scope of CPMS is not limited to construction phases of project. The phrase "design, bid, build" describes the prevailing model of construction management, in which the general contractor is engaged through a tender process after designs have been completed by the architect or engineer. Many owners – particularly government agencies – let out contracts known as design-build contracts . In this type of contract,
5175-669: The scope of mesoeconomics. Scholarly articles on the topic are starting to increase in number with 474 articles and books on the topic in a database search in July, 2014. The term Mesoeconomics is still emerging and should be used with restraint due to unfamiliarity with most audiences. The term comes from " meso- " (which means "middle") and "economics", and is constructed in analogy with micro and macro economics. Economics focuses on measurable ways of describing social behavior. In orthodox neoclassical economics, there are two main recognized types of economic thinking - microeconomics, which focuses on
5250-550: The systems that are currently available that help capital project owner /operators, program managers, and construction managers, control and manage the vast amount of information that capital construction projects create. A collection, or portfolio of projects only makes this a bigger challenge. These systems go by different names: capital project management software, computer construction software, construction management software, project management information systems. Usually construction management can be referred as subset of CPMS where
5325-441: The tasks on weekly work plans are completed by the end of the plan week" and that constructors could mitigate most of the problems through "active management of variability, starting with the structuring of the project (temporary production system) and continuing through its operation and improvement" (Ballard and Howell 2003). Evidence from research and observations indicated that the conceptual models of Construction Management and
5400-455: The tool, method, and/or technique will assist in fulfilling the aims of lean construction, it is considered a part of the toolkit available for use. A sampling of these tools includes: BIM (Lean Design), A3, process design (Lean Design), offsite fabrication and JIT (Lean Supply), value chain mapping (Lean Assembly), visual site (Lean Assembly); 5S (Lean Assembly), daily crew huddles (Lean Assembly). The priority for all construction work
5475-424: The tools it utilizes ( work breakdown structure , critical path method , and earned value management ) fail to deliver projects 'on-time, at budget, and at desired quality' (Abdelhamid 2004). With recurring negative experiences on projects, evidenced by endemic quality problems and rising litigation, it became evident that the governing principles of construction management needed revisiting. One comment published by
5550-818: The topics discussed at the 'Lean in the Public Sector' (LIPS) conference held in 2009. In America, Job Order Contracting (JOC) uses explicit lean construction principles. JOC requires a long-term multi-party agreement, a collaborative environment, and a common data environment as signified by a locally researched detailed unit price book. More specifically JOC includes; direct owner leadership, adaptation of process to organizational requirements, locally researched, fully transparent and verifiable construction cost data, full regulatoryu compliance and auditability, focus upon programmatic processes applied to all associated construction, repair, renovation, or maintenance projects and work orders, collaborative and scalable cloud technology and
5625-519: The way back to the Arsenal in Venice in the 1450s, and the first person to truly integrate an entire production process, Henry Ford. At Highland Park, MI, in 1913 he married consistently interchangeable parts with standard work and moving conveyance to create what he called flow production. The public grasped this in the dramatic form of the moving assembly line, but from the standpoint of the manufacturing engineer
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