Augmented E-constraint method 1 Costs 1 Credibility theory 1 E-constraint method 1 Economic and social effects 1 Expected interval 1 Fuzzy credibility theory 1 Goal attainment methods 1 Multi-objectives optimization 1 Multiobjective optimization 1 Time-cost trade-off 1 Time-cost trade-offs 1 Time/cost trade-offs 1 Uncertainty analysis 1 augmented E-constraint method 1 fuzzy credibility theory goal attainment method 1 multi-objective optimization 1 time-cost trade-off (TCT) 1