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Chapter
Jul 11, 2012

Formalizing the Four-Dimensional (4D) Topology As the Base for 4D Analysis in Construction Planning

Publication: Construction Research Congress 2012: Construction Challenges in a Flat World

Abstract

Construction site is a dynamic environment in which workspaces of construction activities continuously change in aspects of space and time throughout the entire lifecycle of a project. Without a comprehensive plan that considers spatial-temporal relationships between the site objects, conflicts or improper layout may frequently occur on construction site and influence the success of the project. Four dimensional (3D+time) modeling technique has been proven to be useful and promising in construction planning. However, it still lacks the ability to capture the site dynamic natures and analyze spatial-temporal relationships. The overall goal of this study is to develop a 4D topology system based on GIS concept for construction planning, which enables deriving 4D relationships between site objects in real-time and provides a comprehensive 4D topological analysis function, overcoming a major drawback in the current 4D practice. This paper presents the result of the development of the 4D topology framework in construction. The semantics of 4D topology are defined to describe corresponding dynamic construction site events. A 4D topological framework is formalized to capture the site dynamics which forms the base for 4D analysis. It could complement the CPM or 3D model in construction planning under both spatial and temporal constraints. The direction of future research in 4D topology-based analysis is also discussed.

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Go to Construction Research Congress 2012
Construction Research Congress 2012: Construction Challenges in a Flat World
Pages: 397 - 406

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Published online: Jul 11, 2012

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Ph.D. Candidate, Division of Construction Engineering and Management, School of Civil Engineering, Purdue University, 550 Stadium Mall Drive, West Lafayette, IN 47906. E-mail: [email protected]
Lei Zhang
Institute of Geological Surveying and Mapping of Anhui Province, 18 JiuHuaShan Road, Hefei, Anhui, PRC 230022.
Abdul Rahman Andoh
Division of Construction Engineering and Management, School of Civil Engineering, Purdue University, 550 Stadium Mall Drive, West Lafayette, IN 47906
Hubo Cai, Ph.D.
P.E.
GISP, Assistant Professor, Division of Construction Engineering and Management, School of Civil Engineering, Purdue University, 550 Stadium Mall Drive, West Lafayette, IN 47906

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