Multi-Objective Optimization of Construction Schedules

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by Tadeusz Kasprowicz, Warsaw Univ of Technology, Warsaw, Poland,

Document Type: Proceeding Paper

Part of: Computing in Civil Engineering:

Abstract: This paper focuses on the multi-objective deterministic and stochastic modelling and optimization of construction tasks scheduling. Of particular importance is a frequency need to satisfy conflicting optimization objectives such as the minimization of extra task performance cost and total performance time. Technological relationships between relevant construction tasks have been modelled using the deterministic and probabilistic precedence networks, while the construction resources have been modelled deterministically and stochastically using duration/productivity and resource/performance cost and performance time matrices. For the solution of the problem a mixed integer programming approach has been adopted, utilizing a computer algorithm containing elements heuristic methods.

Subject Headings: Construction costs | Computer programming | Scheduling | Matrix (mathematics) | Algorithms | Stochastic processes | Optimization models |

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