@inproceedings{7ce0949b7f70426d8d21aef25788a638,
title = "Multi-objective optimization for the construction of large-scale infrastructure systems",
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.",
keywords = "Cost, Duration, Genetic algorithms, Optimization, Parallel computing, Quality",
author = "Amr Kandil and Khaled El-Rayes",
year = "2005",
language = "English (US)",
isbn = "0784407541",
series = "Construction Research Congress 2005: Broadening Perspectives - Proceedings of the Congress",
pages = "1015--1025",
editor = "I.D. Tommelein",
booktitle = "Construction Research Congress 2005",
note = "Construction Research Congress 2005: Broadening Perspectives - Proceedings of the Congress ; Conference date: 05-04-2005 Through 07-04-2005",
}