preview

Construction Projects Of Saudi Arabia

Decent Essays

For a project to be successfully completed before due dates and keeping budget under control optimum utilization of resources is necessary; however, these limits may sometimes surpass. A significant variance may be there between certain assumptions made during initial planning of project and final outcomes. Unforeseen and unknown changes in construction methods, materials, techniques, or human resources may create budgetary and scheduling pressures which may increase the possibility of failure (Zeng et al., 2007). According to a survey exploring completion of construction projects in Saudi Arabia showed that 76% of project contractors experienced delays of 10–30% of the projected duration (Assaf and Al-Hejji, 2006).
In problems of …show more content…

In another approach for assisting construction planners in making time-cost trade-off decisions. This new approach, named the LP/IP hybrid method, is a combination of linear and integer programming. The LP/IP hybrid method first establishes the lower bound of the time-cost relationship of a project using linear programming. Based on the linear programming solutions, regions of desired time and cost can be selected to find the exact solutions by integer programming in a fraction of the time required to solve the entire problem using only integer programming. This combination of linear and integer programming provides the efficiency and accuracy for solving time-cost trade-off problems. In addition, the lengthy and error-prone process of formulating linear and integer programming objective functions and constraints are replaced by a spreadsheet tool so that users can intuitively define time-cost and precedence relationships for activities. The LP/IP hybrid method along with the spreadsheet tool provides construction planners with a new and efficient means of making good time-cost decisions. Detailed description of the LP/IP hybrid method is provided and an example is given to demonstrate the use of this new method.

Background
The above methodologies need to use the historical records and knowledge of experts, contractors or engineers in determining the suitable resource utilization

Get Access