A GA-based fuzzy optimal model for construction time–cost trade-off

Leu, Sou-Sen; Chen, An-Ting; Yang, Chung-Huei

doi:10.1016/s0263-7863(99)00035-6

Cited by 159 publications

(65 citation statements)

References 18 publications

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“…For the owner, the delay in the completion of the project work will caused losses to the operating time of the results of the project, so that the use of the results of the development project was delayed. During project implementation, there are many uncertainty variables that dynamically affect duration of activity, and hence cost (Leu et al, 2001). Many uncertainties associated with international construction arise from differences in culture, economic conditions, specifications or standards, legal frameworks, and productivity levels (Dikmen&Birgonul, 2006).…”

Section: Introductionmentioning

confidence: 99%

Analysis of Causes of Delay and Time Performance in Construction Projects

Rauzana¹

2016

IOSR

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Section: Introductionmentioning

confidence: 99%

Analysis of Causes of Delay and Time Performance in Construction Projects

Rauzana¹

2016

IOSR

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“…For this case, the activity durations may be described by fuzzy variables. The first work on the fuzzy TCTP was done by Leu et al [16]. Jin et al [17] gave a genetic algorithm (GA)-based fully fuzzy optimal time-cost tradeoff model, in which all parameters and variables were characterized by fuzzy numbers and an example in ship building scheduling was demonstrated.…”

Section: Introductionmentioning

confidence: 99%

A genetic algorithm-based optimizing approach for project time-cost trade-off with uncertain measure

2014

J. Uncertain. Anal. Appl.

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Both the trade-off between the project cost and the project completion time and the indeterminacy of the environment are important issues for real-life project managers. In this paper, an uncertain time-cost trade-off problem, where activity cost functions are assumed to be linear and the objective function to be minimized is the project direct cost, is described based on uncertainty theory. Two uncertain time-cost trade-off models are built to satisfy different management requirements. To solve the proposed models, two equivalent crisp mathematical programming models are given, and genetic algorithm is introduced to search for quasi-optimal schedules. For future research, resource constraints or more types of indeterminacy can be included.

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“…Metaheuristics such as genetic algorithms were exploited in solving this problem by Feng et al (1997) and Chua et al (1997). Leu et al (2001) introduced uncertainty issues in their approach by using fuzzy numbers to represent possible activity durations. This idea was formerly researched by several authors, for example Chanas and Kamburowski (1981) and Hapke and Słowiński (1996).…”

Section: Introductionmentioning

confidence: 99%

The Time‐cost Trade‐off Analysis in Construction Project Using Computer Simulation and Interactive Procedure

Błaszczyk¹,

Nowak²

2009

Technological and Economic Development of Economy

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abstract. Several criteria must be considered while preparing the schedule of a construction project. The completion time and project cost are analyzed in most cases. Additionally, the risk related to the criteria has to be taken into account as well. Thus, project planning problem can be defined as a multicriteria decision problem under risk. In this paper, a project scheduling problem including time-cost trade-offs is analyzed. We assume that various resource allocations can be considered. A new technique based on computer simulation and interactive approach is proposed. In the first step, simulation experiments are performed to evaluate decision alternatives with respect to the criteria. An interactive technique INSDECM is employed for generating the final solution of the problem. The procedure uses stochastic dominance rules for comparing decision alternatives with respect to the criteria. A numerical example is presented to illustrate the applicability of the technique.

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A GA-based fuzzy optimal model for construction time–cost trade-off

Cited by 159 publications

References 18 publications

Analysis of Causes of Delay and Time Performance in Construction Projects

Analysis of Causes of Delay and Time Performance in Construction Projects

A genetic algorithm-based optimizing approach for project time-cost trade-off with uncertain measure

The Time‐cost Trade‐off Analysis in Construction Project Using Computer Simulation and Interactive Procedure

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