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- Title
Minimisation des surcoûts dans un contexte hors délai : cas des projets de construction dans les pays en développement.
- Authors
Louzolo-Kimbembé, Paul; Pettang, Chrispin; Tatiétsé, Thomas Tamo
- Abstract
Cost overruns are frequent in the construction industry. They become greater the more the construction project is delayed. In developing countries, this situation is recurring and constitutes a significant financial problem. In a time-overrun context, our objective is to find a method that can enable us to reduce the delay while minimizing the subsequent cost overruns. We thus developed a mathematical model named CCOMTOC (construction cost optimisation model in time-overrun context). The model was tested and results reveal that the reduction of cost overruns is effective. We showed that in a time-overrun context, according to the importance of delay penalties, we obtain two distinct situations. On the basis of the reference cost calculated for a maximum compression of tasks within the normal duration, we note that, for low delay penalties, the total cost after further delays to the estimated completion time decreases as we deviate from the initial completion time. On the other hand, for relatively high delay penalties, the cost first passes by a minimum before increasing regularly during the further delays to the estimated completion time.
- Subjects
CONSTRUCTION costs; COST effectiveness; CONSTRUCTION industry; INVESTORS; MATHEMATICAL models; CONSTRUCTION spending; DEVELOPING countries
- Publication
Canadian Journal of Civil Engineering, 2007, Vol 34, Issue 9, p1180
- ISSN
0315-1468
- Publication type
Article
- DOI
10.1139/L07-089