Nkado, R N (1992) Construction time information system for the building industry. Construction Management and Economics, 10(6), pp. 489-509. ISSN 01446193
Abstract
The paper describes a computerized construction time information system for time planning of buildings at early stages of design. A sample of 29 commercial, privately funded buildings was used to develop the proposed model. A procedure for extending the model to other project categories is shown. Multiple linear regression analysis of sample data shows that the durations of activity groups: substructure, superstructure, cladding, finishes, services and their sequential start – start lag times can be predicted from 12 variables: gross floor area, area of ground floor, approximate excavated volume, building height, number of storeys, end use, cladding type, presence of atrium, building location, intensity of services and site accessibility. An experiment involving nine planners and three office projects showed that the time predictions of the model fall within the distribution of planners' estimates and are statistically in distinguishable from them. Therefore, the model can produce reliable estimates of construction times.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | construction time; information system; model; planning; prediction |
| Index terms: | finishes, information system, experiment, presence, planner, building industry, cladding, construction time, regression analysis, estimate, duration, accessibility, office project, gross floor area, building height, time prediction |
| Subjects: | building performance, inclusive design, environmental science, operations research, construction type, industry analysis, statistical analysis, information systems, project controls, financial and cost management, building materials, profession, data collection methods |
| Topics: | Sustainability, Digital Applications, Design Practice, Time Control, Research Practice, Cost Management, Construction Technology, Roles and Professions |
| Descriptive scope: | 4 PCEA |
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