Abstract:
Time-Cost Optimization (TCO) problem is one of the greatest challenges in construction project
planning and control. TCO may be defined as a process to identify suitable construction activit ies
for speeding up, and deciding “by how much" so as to attain the best possible savings in both time
and cost. In this paper, an Integer Linear Model is developed to obtain solutions of time -cost
tradeoff (TCT) problems in construction projects.
The proposed Model collects most related characteristics and constraints presented by different
previous works. Also, new factors have been added to the model so as to represents more real TCT
problems in life projects. The model is solved by Excel 2007 and verified using the commercial
package Primavera (P3) throughout an application example . Good agreement results of model
response against different related factors are founded through conducting sensitivity analysis.