Effective production control systems are structured around the assignment as unit of analysis. The quality work assignments in units such construction crews and engineering squads is key to for determining productivity. Research has revealed that can be substantially improved by forming selecting them meet soundness, sequence, size criteria. Quality shield from flow uncertainty, enabling those improve their own productivity, also productivity downstream. associated reduction task duration...

Target costing is an effective management technique that has been used in manufacturing for decades to achieve cost predictability during new product development. Adoption of this promises benefits the construction industry as it struggles raise number successful outcomes and certainty project delivery terms cost, quality time. value design a approach takes best features target adapts them peculiarities construction. The concept introduced based on results action research carried out 12...

Projects are temporary production systems. When those systems structured to deliver the product while maximizing value and minimizing waste, they said be 'lean' projects. Lean project management differs from traditional not only in goals it pursues, but also structure of its phases, relationship between phases participants each phase. This paper presents a model lean contrasts approaches. Four tools or interventions presented as illustrations concepts action. Les projets sont des systèmes de...

The Lean Project Delivery System emerged in 2000 from theoretical and practical investigations, is process of on-going development through experimentation many parts the world. In recent years, experiments have focused on definition design phase projects, applying concepts methods drawn Toyota Product Development System, most especially target costing set based design. These been adapted for use construction industry integrated with computer modeling relational forms contract. Although by no...

Different types of flow variation and how they affect construction project performance have been studied by previous researchers. One aspect that has not well researched is work labor productivity are related in practice. To study issue, 134 weeks production data were collected analyzed to explore this relationship. Labor was found be positively correlated with Percent Plan Complete (PPC), a measure variation. The relationship between the ratio total task completion planned tasks, weekly...

Purpose – The purpose of this paper is to show that project success dependent on the management approach selected, relative challenges posed by project, and develop an analytical model for analyzing performance organization. Design/methodology/approach research based literature review, development, interviews, case studies. Findings findings define two different approaches in management: prescriptive focusses formal qualities organization, including governing documentation procedures....

Multicriteria decision-making (MCDM) methods can help designers address the choosing problem in building detailed design. Many, however, appear to assume that all are equivalent. This paper argues differences between MCDM matter. The first contribution of this is differentiating analytical hierarchy process (AHP) and by advantages (CBA) comparing them through an example. second explaining why CBA superior AHP for context. In summary, (1) provides a more context-based analysis than AHP, (2)...

Research Question: The Last Planner System (LPS) and Location-Based Management (LBMS) both aim to achieve the lean goals of decreasing waste, increasing productivity variability. Q1: How best link these two systems together better project performance? Q2: can LBMS control mechanisms be integrated with LPS? Q3: Can phase pull scheduling LBMS? Purpose: purpose this research is develop a process practices combine benefits LPS LBMS. Method: Skanska Finland has used together. Because planning...

Management theory has been neglected in the construction industry, which rather focused on best practices. This paper investigates theories implicit two prevalent project control systems: earned value method (EVM) and last planner system (LPS). The study introduces fundamental competing conceptualizations of management: managing by means (MBM) results (MBR). EVM is found to be based MBR. However, MBR argued inappropriate for at operational level where tasks are highly interdependent. LPS MBM...

Design teams must make numerous decisions in building design, including choosing materials. Lately, they have become more concerned about the social and environmental effects of their choices, addition to economic constraints. These concerns, increasing offerings construction materials products engagement stakeholders, complex. As decision complexity increases, so does need systematically use sound decision-making methods. However, practice many are made without a formal method or...

A database program called WorkPlan has been created to systematically develop weekly work plans. Such plans are used by crew foremen in scheduling packages and allocating available labor equipment resources. adopts the Last Planner methodology, which implements several lean construction techniques. week prior conducting work, guides user step through process of spelling out packages, identifying constraints, checking constraint satisfaction, releasing resources; then at end week, collecting...

The relationship of one subcycle to another can be complex. Productivity suffers when the output delays a following step or resources required for are engaged in another. Isolating subcycles from immediate interaction with other is an important principle design and improvement work methods. While cannot eliminated, negative effect interactions reduced careful provision buffers shared resources. Five cases demonstrate different aspects this concept. A review 31 performance shows that reducing...

According to adherents of lean construction, project management theorists and practitioners, when drawing from the concepts principles economics, have neglected production. The consequences this neglect are said include poor control (low reliability) handoffs between design, supply construction specialists, a tendency promote adversarial relationships – reducing value delivered increasing waste. There is agreement in community that these problems must be solved production perspective...