Time-cost model for building projects in Nigeria
D R Ogunsemi, G O Jagboro. Construction Management and Economics. London: Mar 2006. Vol. 24, Iss. 3; pg. 253
D R Ogunsemi, G O Jagboro. Construction Management and Economics. London: Mar 2006. Vol. 24, Iss. 3; pg. 253
Abstract (Summary)
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Time-cost model for building projects in Nigeria
D R Ogunsemi, G O Jagboro. Construction Management and Economics. London: Mar 2006. Vol. 24, Iss. 3; pg. 253
D R Ogunsemi, G O Jagboro. Construction Management and Economics. London: Mar 2006. Vol. 24, Iss. 3; pg. 253
Abstract (Summary)
The concept of project duration is important in assessing the success or viability of a construction project. A time-cost relationship for construction projects in Nigeria has been developed based on Bromilow's time-cost model. Cost data on 87 completed building projects executed within the period 1991-2000 were obtained. The data were subjected to regression analyses using double log and later the piecewise model with breakpoint. For the Nigerian situation, the Bromilow's time-cost model was found to be T = 63C 0.262 with poor predictive abilities (R = 0.453, R 2 = 0.205). An improved model using piecewise model with good predictive abilities (R = 0.875, R 2 = 0.765) was found to be T = 118.563-0.401C (C ? 408) or 603.427 + 0.610C (C>408). The model is shown to be useful in predicting construction project durations. [PUBLICATION ABSTRACT]
The concept of project duration is important in assessing the success or viability of a construction project. A time-cost relationship for construction projects in Nigeria has been developed based on Bromilow's time-cost model. Cost data on 87 completed building projects executed within the period 1991-2000 were obtained. The data were subjected to regression analyses using double log and later the piecewise model with breakpoint. For the Nigerian situation, the Bromilow's time-cost model was found to be T = 63C 0.262 with poor predictive abilities (R = 0.453, R 2 = 0.205). An improved model using piecewise model with good predictive abilities (R = 0.875, R 2 = 0.765) was found to be T = 118.563-0.401C (C ? 408) or 603.427 + 0.610C (C>408). The model is shown to be useful in predicting construction project durations. [PUBLICATION ABSTRACT]
Indexing (document details)
Subjects: Studies, Building construction, Construction industry, Project management, Economic models, Time, Costs
Classification Codes 9130 Experimental/theoretical, 9177 Africa, 8370 Construction & engineering industry, 1130 Economic theory
Locations: Nigeria
Author(s): D R Ogunsemi, G O Jagboro
Document types: Feature
Document features: references
Publication title: Construction Management and Economics. London: Mar 2006. Vol. 24, Iss. 3; pg. 253
Source type: Periodical
ISSN: 01446193
ProQuest document ID: 1007637741
Document URL:www.mahdihashemi.blogspot.com
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