Abstracts – Browse Results
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Abdirad, H (2020) Developing digital project delivery routines around frequent disruptions: How do AEC organizations respond to disruptive information exchange requirements?, Unpublished PhD Thesis, , University of Washington.
Al-Saleh, F S (1980) A case study and evaluation of a technological delivery system: Construction management in Saudi Arabia, Unpublished PhD Thesis, , University of Washington.
Astaneh Asl, B (2019) Effects of using virtual reality on AEC team collaboration, Unpublished PhD Thesis, , University of Washington.
Azari Najafabadi, R (2013) An evaluation framework for the integrated design process of sustainable high-performance buildings, Unpublished PhD Thesis, , University of Washington.
Fardhosseini, M S (2021) A quantitative analysis of the impact of integrating digital technology for formwork fabrication on human factors perspectives, Unpublished PhD Thesis, , University of Washington.
Gambatese, J A (1996) Addressing construction worker safety in the project design, Unpublished PhD Thesis, , University of Washington.
Gutub, S (2019) Framework for the implementation process of public-private partnerships (P3s) in highway projects, Unpublished PhD Thesis, , University of Washington.
Ho, C T T (2019) Application of optimization to the production planning of construction prefabrication supply chains, Unpublished PhD Thesis, , University of Washington.
Homayouni, H (2015) Aligning contractual, technological, and organizational elements to achieve higher performance buildings: A qualitative comparative analysis approach, Unpublished PhD Thesis, , University of Washington.
Lee, N H (2009) A framework for developing new visualization schemes for construction project performance monitoring, Unpublished PhD Thesis, , University of Washington.
Lee, W (2018) Use of wearable sensors to unveil roles of task demands-personal resources and burnout on performance of construction workers, Unpublished PhD Thesis, , University of Washington.
Lewis, N S (2023) Development of an open-source methodology for simulation of civil engineering structures subject to multi-hazards, Unpublished PhD Thesis, , University of Washington.
Lowry, M B (2008) An online analytic-deliberative approach to public participation for transportation investment decisions, Unpublished PhD Thesis, , University of Washington.
Manninen, D L (1981) Labor force migration associated with nuclear power plant construction, Unpublished PhD Thesis, , University of Washington.
Mukherjee, A (2005) A multi-agent framework for general purpose situational simulations in construction management, Unpublished PhD Thesis, , University of Washington.
Ottesen, J (2019) CPM schedule density: A new predictor for productivity loss, Unpublished PhD Thesis, , University of Washington.
- Type: Thesis
- Keywords: construction activities; duration; construction labor; high rise; scheduling; productivity; sample size; cost overrun; construction project; applied mathematics
- ISBN/ISSN:
- URL: http://hdl.handle.net/1773/44070
- Abstract:
This dissertation addresses construction labor trade stacking, which oftentimes creates adverse labor inefficiencies, delay and cost overruns on construction projects. Present industry practice holds that Critical Path Methodology (CPM) scheduling is more accurate with resource loading assigned to construction activities, and that likelihood for trade stacking is reduced when managing a resource-loaded schedule. However, despite the potential benefits, and for many reasons, most contractors choose not to resource load their schedules. This research sought to create a predictive model for construction labor productivity loss using non-resource loaded CPM schedules as the primary input. This research advanced under a primary assumption that regardless of whether a contractor utilizes resource loading or not, the contractor will allocate enough daily resources to a scheduled activity so that that activity will be completed within its planned duration. This assumption is captured in a new metric called a Crew Day Resource (CDR). When planned schedule activities overlap in time, trade stacking occurs and the number of CDR’s for that day likewise increases. Schedule density refers to the increasing degree of overlapping activities in a CPM schedule. How that density measure changes from schedule update to update allowed a predictive mathematical model to be created with strong correlation between the schedule density and actual observed labor productivity. Five construction projects were evaluated with emphasis on specific trades including mechanical and electrical work on three high rise buildings, large bore piping on a power plant, and structural steel work on a marine maintenance structure. Results of this research are encouraging and justify expansion of the project sample size, particularly for mechanical and electrical trades in high rise building projects. Additionally, this study provides the basis for development of a project management tool that may alert managers of potential construction labor inefficiencies before they occur.
Pathak, C (2021) Electric vehicle infrastructure decision support system, Unpublished PhD Thesis, , University of Washington.
Pratama, L A (2023) Immersive visualization intervention on pull planning, Unpublished PhD Thesis, , University of Washington.
Shang, L (2019) Achieving public agency goals in public-private partnerships using innovative payment mechanisms, Unpublished PhD Thesis, , University of Washington.
Son, J (2011) An integrated model of evolution of project teams in large-scale construction projects, Unpublished PhD Thesis, , University of Washington.
Stevens, J D (1981) A study of the relationship between perturbations in construction time schedules and potential construction claims, Unpublished PhD Thesis, , University of Washington.
Tench, B (2022) Designing restoration: Protecting and restoring our attention through participatory design, Unpublished PhD Thesis, , University of Washington.
Wang, S (2017) Integrated approach and analysis of reliability, robustness, resilience and infrastructure applications, Unpublished PhD Thesis, , University of Washington.
Yamaura, J T (2018) The value of cloud computing technology in public transportation construction, Unpublished PhD Thesis, , University of Washington.
Zhang, Z (2021) Participatory ergonomics in construction: Enabling practice-to-research-to-practice via the 2safemodel, Unpublished PhD Thesis, , University of Washington.
Zokaei Ashtiani, M (2022) Data-driven sustainability assessment in roadway infrastructure construction, Unpublished PhD Thesis, , University of Washington.