Simulation of Execution Alternatives Using Chronographic Scheduling Logic

Francis, Adel; Miresco, Edmond T.

doi:10.5963/jces0501001

Cited by 6 publications

(4 citation statements)

References 10 publications

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“…During the design phase, 3D and 4D modeling techniques can be used to simulate the construction process through the BIM model and detect operation succession errors and space use conflicts (Francis, 2019). As more information becomes available over time and the level of risk decreases, it becomes much easier to make better-informed decisions according to the status of the project or based on the available budget (Francis and Miresco, 2016).…”

Section: The Benefits Of 3d/4d Modeling In Bim Adoptionmentioning

confidence: 99%

Barriers to BIM Adoption in Brazil

Arrotéia

Freitas

Melhado

2021

Front. Built Environ.

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Purpose: The research goal was to investigate the main barriers faced by a large Brazilian construction company in their efforts to thoroughly implement BIM. This study focused on the analysis of understanding the barriers to BIM adoption and the usage of 3/4 dimensions (3D/4D) on the development of an infrastructure project.Research methodology: The research methodology was exploratory and qualitative, carried out through a single-case study approach made upon bibliographical research, company document analysis, project document analysis, interviews, informal conversations, and observations. The research methodology was developed in six months (from June to December 2019) divided into three main phases: phase 1: definition and design; phase 2: preparation and collection; phase 3: data analysis and conclusion. Data collection was developed using a semistructured research protocol with two different semistructured questionnaires: the first questionnaire aimed at collecting data regarding BIM implementation in the company’s organizational context; the second one focused on the understanding of BIM adoption in the project and on the investigation of the main barriers related to the usage of 3D and 4D modeling in the project studied.Findings: Regarding BIM implementation in the company, although the company studied is a construction company in the infrastructure sector, BIM was considered more efficient in the design phase and flawed in the construction phase. Findings have shown that BIM has improved the information management of the design itself and its interface with the construction phase. In relation to the usage of BIM in the project, a more collaborative work environment was noticed due to the effectiveness of communication between the design and construction teams on the job site. With respect to the usage of 3D/4D modeling in the project studied, the difficulties in extracting information from the 3D model have disabled the usage of 4D modeling during the construction phase. Therefore, the difficulties reported were identified as an opportunity to map deficiencies in the BIM model in order to define parameters for the new project proposals and to automate the process of receiving the model and checking for inconsistencies or lack of information.Implications for Research and Practice: The case study is an example that BIM as a technological tool is not able to promote an integrated design and construction interface by itself. It is necessary to integrate BIM as an integrated process with structured management methods and tools. From our perspective, we understand that contracts should change, including construction stakeholders in the very beginning of the design process fostering collaboration across stakeholders such as designers, design and construction managers, suppliers, and subcontractors, thereby achieving a higher level of improvement potentially carried on by the new technologies allied to management practices. With regard to the nature of this article, it is important to make it clear that the results from this study were based on the Brazilian construction industry only.Limitations: The research is a single-case study; therefore, the findings cannot be generalized. Most of the data were dependent on the interviewees’ self-reported perceptions. We suggest new studies should be conducted with other construction companies in the Brazilian context, comparing companies with different organizational structures and sizes and other types of projects.

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Section: The Benefits Of 3d/4d Modeling In Bim Adoptionmentioning

confidence: 99%

Barriers to BIM Adoption in Brazil

Arrotéia

Freitas

Melhado

2021

Front. Built Environ.

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“…During the pre-construction phase, 3D and 4D modeling techniques can be used to simulate the construction process through a BIM model and detect operation succession errors and space use conflicts (Francis, 2019). As more information becomes available over time and the level of risk decreases, it becomes much easier to make better-informed decisions according to the status of the project or based on the available budget (Francis and Miresco, 2016). Current scheduling methods do not account for spatiotemporal constraints, which leads to less than optimal scheduling.…”

Section: Bim In the Pre-construction Phasementioning

confidence: 99%

“…Many decisions during construction are postponed due to the parallelism of design and construction activities faced by highly complex projects such as infrastructure and industrial projects (Francis and Miresco, 2016). BIM has become a common process and technology used in the management of construction projects (Puolitaival and Forsythe, 2016).…”

Section: Introductionmentioning

confidence: 99%

BIM Adoption in the Pre-Construction Phase: An Infrastructure Project Case Study

Arrotéia¹,

Melhado²

2020

CIB W78 Proceedings

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BIM adoption represents an uphill task for the construction industry in developing nations. In Brazil, construction companies are looking out for the best strategies to implement BIM into their processes. Currently, the industry relies on traditional methods which fall short of meeting the demand for the interconnection between different levels of information along the building life cycle, especially in highly complex projects. The research goal was to understand the main obstacles with BIM adoption during the pre-construction phase in a complex infrastructure project. The research methodology was exploratory and qualitative carried out through a single case study approach made upon bibliographical research, project analysis, interviews, and informal conversations. Based on that, our analysis discussed the results from two different perspectives: BIM in the company's organizational context and BIM in the pre-construction phase. After that, we summarize the main barriers and gaps concerning BIM in the case study. Results has shown the main difficulties faced by the company in their efforts to thoroughly implement BIM. Mainly, the project studied has achieved 3D dimension modeling and a punctual initiative of 4D dimension application during the pre-construction and construction phases. In conclusion, this study has observed the importance of the pre-construction phase for the successful information management and project results in terms of constructability, cost saving and time management.

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“…The objective of the paper is to propose a complete allocation methodology compatible with the Chronographic Modeling [11][12][13][14][15].…”

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confidence: 99%

Chronographic Allocation Techniques for Construction Projects

Francis¹

2017

JCES

Self Cite

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Abstract-The literature is abundant in terms of research on resource management and optimization methods. Many deterministic, probabilistic and heuristic methods propose how to use resources efficiently. However, this paper discusses allocation techniques, i.e. how to technically allocate resources to activities rather than how to use resources efficiently. Though this subject is thoroughly covered by commercial scheduling software, it is generally absent from the literature. This paper compares the proposed Chronographic Modeling with the methods employed by commercial scheduling software. The new allocation methodology defines three attribute methods: complete attribute, attribute by segment and attribute by scale. Proposing internal divisions, as well as internal, external, vertical and horizontal scales, allows planners to create all kinds of attributes, from bulk allocation to any type of external and internal scale attribute. The links between scales could also show interactions between different measurement units and offer several types of durations, quantities and costs for increased flexibility and resolution of the limitations of existing methods. This paper adds to the body of knowledge by introducing a complete and realistic allocation methodology for construction project scheduling.

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Simulation of Execution Alternatives Using Chronographic Scheduling Logic

Cited by 6 publications

References 10 publications

Barriers to BIM Adoption in Brazil

Barriers to BIM Adoption in Brazil

BIM Adoption in the Pre-Construction Phase: An Infrastructure Project Case Study

Chronographic Allocation Techniques for Construction Projects

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