Representing Work Spaces Generically in Construction Method Models

Abstract

Construction activities require a set of work spaces to be executed safely and productively. The locations and volumes of these spaces change in three dimensions and across time, according to project-specific design and schedule information. Previous research on construction space management requires users to specify the spatio-temporal data necessary to represent each project-specific space needed for construction. Since a construction schedule consists of hundreds of activities requiring multiple types of spaces, this approach is practically infeasible. There is a need for a generic (projectindependent) representation of work spaces, from which the project-specific instances of spaces can be derived automatically based on project-specific design and construction schedule information. This paper formalizes such a generic space description as a computer-interpretable ontology. This ontology is general, reusable and comprehensive. It enables a prototype system that captures the spatial requirements associated with construction methods and automates the generation of project-specific spaces represented in three dimensions and across time.

Global Positioning System Data to Model and Visualize Workspace Density in Construction Safety Planning

“…Akbaş [9] described an approach for modeling and simulation of construction processes based on geometric models and techniques to improve construction operations and more effective use of geometry for construction practice and research. Akinci et al [10][11] developed space templates linked to construction method templates to enable users to define the space requirements of different construction methods. A prototype system, called 4D WorkPlanner Space Generator, was developed that uses the spatial requirement knowledge captured generically in the space templates.…”

Examination of Worker‐location Measurement Methods as a Research Tool for Automated Labor Control

“…The British Research Establishment presented another approach to labor performance measurement (called CALIBRE), using a full time observer(s) and a hand-held computer (Winch and Carr 2001). The observer tours the site at regular time intervals and records tasks being undertaken, classifying them in four categories: (1) value adding, (2) non-value adding, (3) support time, and (4) statutory.…”

“…The rationale behind the present development is that each construction activity -a set of tasks performed by a crew to shape and place a material into its final position (Riley and Sanvido 1995) -has well defined spaces associated with it (Akinci et al 2002). Akinci et al (2002) classified 13 spaces in three categories: "macro-level space, microlevel space and paths".…”

“…Akinci et al (2002) classified 13 spaces in three categories: "macro-level space, microlevel space and paths". The micro-level space is the space required within the proximity of the components being installed, occupied by crews and equipment.…”

Grid Cell-based Algorithm for Workspace Overlapping Analysis Considering Multiple Allocations of Construction Resources

“…configured the workspace shape based on 2D plan-view envelops elements. Akinci (2002bAkinci ( , 2002c) generated a 3D workspace model required for the construction of elements and presented the layout methods in an available working area using the generated workspaces. In addition, Tantisevi and Akinci (2007) configured a 3D bounding box model as a moving space with the rotation area of a boom when hoisting materials with equipment, such as a crane.…”