Multi-objective optimization for the construction of large-scale infrastructure systems

Amr Kandil, Khaled El-Rayes

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper presents the development of an advanced Information Technology Framework for Optimizing Construction Utilization of Resources in Civil Infrastructure Systems, named ITFOCUS. The main objectives of this framework are to: (1) develop robust optimization models for minimizing construction cost, and duration, while maximizing quality; and (2) formulate scalable methodologies for solving large-scale construction optimization problems. To this end, the present framework is implemented using an advanced multi-objective genetic algorithm that is capable of generating optimal trade-offs between construction cost, duration, and quality. To enable the optimization of large-scale infrastructure projects, the algorithm is parallelized using the manager-worker paradigm of parallel and distributed computing. The parallel implementation of the algorithm utilizes the message passing interface (MPI) standard to distribute genetic algorithm computations over a cluster of 50 Intel Xeon processors. A number of large-scale construction projects with sizes ranging from 180 to 720 activities were evaluated using the 50 processor cluster to evaluate the computational requirements for optimizing real-life construction projects. The results of this evaluation highlight the significant computational savings that can be achieved by the implemented parallel computing framework.

Original languageEnglish (US)
Title of host publicationConstruction Research Congress 2005
Subtitle of host publicationBroadening Perspectives - Proceedings of the Congress
EditorsI.D. Tommelein
Pages1015-1025
Number of pages11
StatePublished - 2005
EventConstruction Research Congress 2005: Broadening Perspectives - Proceedings of the Congress - San Diego, CA, United States
Duration: Apr 5 2005Apr 7 2005

Publication series

NameConstruction Research Congress 2005: Broadening Perspectives - Proceedings of the Congress

Other

OtherConstruction Research Congress 2005: Broadening Perspectives - Proceedings of the Congress
Country/TerritoryUnited States
CitySan Diego, CA
Period4/5/054/7/05

Keywords

  • Cost
  • Duration
  • Genetic algorithms
  • Optimization
  • Parallel computing
  • Quality

ASJC Scopus subject areas

  • General Engineering

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