A hybrid CAD-based construction site layout planning system using genetic algorithms

Osman, Hesham; Georgy, M; Ibrahim, Moheeb E.

doi:10.1016/s0926-5805(03)00058-x

Cited by 128 publications

(62 citation statements)

References 11 publications

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“…In this approach, the position of objects is identified by a unique location reference that is assigned to grid cells (Fig. 1b) (Cheung et al 2002;Elbeltagi 1999, 2000;Elbeltagi et al , 2004Osman et al 2003;Khalafallah and El-Rayes 2006a, 2006b, 2008Ning et al 2010;Yahya and Saka 2014). This approach facilitates the search process and the identification of space conflicts between objects during the search.…”

Section: Grid Systemmentioning

confidence: 99%

“…Here, the size of the grid unit is selected such that it can fit the largest object. In a more advanced form of grid representation, an object can occupy multiple grid cells (e.g., Osman et al 2003;Ning et al 2010;Khalafallah and El-Rayes 2011). Using multiple grids allow a more realistic representation of the size of the object in the search process.…”

Section: Grid Systemmentioning

confidence: 99%

“…Temporary facilities are one of the most commonly addressed object typologies in the site layout literature. In fact, the scope of many of the previous site layout studies is limited to temporary facilities (e.g., Li and Love 1998;Hegazy and Elbeltagi 1999;Osman et al 2003). Temporary facilities are easier to model as their time of arrival is often at the beginning of the project, their shape and size are usually known, and their location often remains unchanged throughout the project.…”

Section: Temporary Facilitiesmentioning

confidence: 99%

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The constructs of site layout modeling: an overview

Sadeghpour

Andayesh

2015

Can. J. Civ. Eng.

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Abstract:The efficient planning of site space through the course of a construction project is referred to as site layout planning. Due to its impact on safety, productivity and security on construction sites, several site layout planning models have been developed in the past decades. These models have the common aim of generating best layouts considering the defined constraints and conditions. However, the underlying assumptions that were made during the development of these models seem disparate and often implicit. This study provides an overview of the existing models and aims to draw a holistic view of variables that have been considered at different levels of detail and using different approaches in the site layout literature. Through close examination and comparative analysis of existing models, this study identifies the components that need to be considered for site layout modeling, referred to as constructs. Possible approaches that can be used to realize each construct are presented, and the advantages and disadvantages of these approaches are discussed. It is hoped that this study contributes to a better understanding of site layout modeling, and provide an outline for the development of new site layout planning models.Key words: construction site planning, site layout modeling, modeling constructs, site management, optimization models.Résumé : La planification de l'agencement d'un espace défini dans le cadre d'un chantier de construction est appelée « plan d'aménagement de site ». En raison de l'impact de ce dernier sur la sécurité, la productivité et la sûreté des sites de construction, de nombreux modèles de plans d'aménagement de site ont été développés au cours des dernières décennies. Ces modèles ont pour objectif commun de concevoir des aménagements optimaux en tenant compte de contraintes et de conditions précises. Cependant, les hypothèses de base émises lors de l'élaboration de ces modèles semblent nombreuses et souvent implicites. La présente étude fournit un aperçu des modèles existants et a pour but d'offrir une vision globale des variables qui ont été étudiées à différents niveaux de détail et sous diverses approches dans la littérature traitant de l'aménagement de site. Grâce à un examen attentif et à une analyse comparative des modèles existants, le présent article identifie les composants, nommés « structures », à prendre en compte dans la modélisation de l'aménagement de site. L'article décrit également les différentes approches pouvant être adoptées pour créer chaque structure ainsi que les avantages et désavantages de ces approches. Il est à espérer que la présente étude contribuera à une meilleure compréhension de la modélisation de l'aménagement de site et constituera un point de départ à l'élaboration de nouveaux modèles de plans d'aménagement de site. [Traduit par le Rédaction] Mots-clés : plan de site de construction, modélisation d'aménagement de site, structures de modélisation, gestion de site, modèles d'optimisation.

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Section: Grid Systemmentioning

confidence: 99%

Section: Grid Systemmentioning

confidence: 99%

Section: Temporary Facilitiesmentioning

confidence: 99%

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The constructs of site layout modeling: an overview

Sadeghpour

Andayesh

2015

Can. J. Civ. Eng.

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“…An attempt has been made by investigators [15,16] to integrate the computer aided design and site layout planning. Osman et.…”

Section: Literature Reviewmentioning

confidence: 99%

A CAD-Based Site Layout for Irregular Facilities Using ACO

Kumar¹,

Singh²

2007

Automation and Robotics in Construction &Amp;#8213; Proceedings of the 24th International Symposium on Automation and Robotics

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This paper introduces a novel approach to enhance the general practice of layout planning of construction sites for producing the efficient utilization. In this work, a solution to the problem is attempted for unequal and irregular temporary facility using robust search and optimization capabilities of Ant Colony Optimization (ACO) algorithm, inspired by the foraging behaviour of real ants. The problem is solved in four stages, namely (1) discretising construction space and formation of representative matrix of site and temporary facilities, (2) identifying all practical constraints in this optimization problem, (3) dividing the construction project in various time interval and identifying the temporary facility for the corresponding time interval, and (4) implementing ACO to get the optimum position and orientation of temporary facilities

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“…Osman et al [14] proposed a hybrid cad-based algorithm using genetic algorithm in order to optimize the location of the temporary facilities on a site. Khalafallah and El-rayes [15] employed multi-objective version of GA for solving a continuous and multi-objective site layout problem.…”

Section: Introductionmentioning

confidence: 99%

A hybrid WOA-CBO algorithm for construction site layout planning problem

Kaveh

Moghaddam

2017

Scientia Iranica

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The whale optimization algorithm (WOA) is a recently developed swarm-based optimization algorithm inspired by the hunting behavior of humpback whales. This study attempts to enhance the original formulation of the WOA by hybridizing it with some concepts of the colliding bodies optimization (CBO) in order to improve solution accuracy, reliability and convergence speed. The new method, called WOA-CBO algorithm, is applied to construction site layout planning problem. To show the efficiency and performance of the WOA and WOA-CBO in construction site layout problems, three case studies are selected. First case is a discrete and equal area facility layout problem that every facility could assign to any location. Second case is an unequal area version of discrete facility layout problem with more constraints and the last case is a continuous model of construction site layouts. These cases are studied by WOA, CBO and WOA-CBO, and the results are compared with each other.

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A hybrid CAD-based construction site layout planning system using genetic algorithms

Cited by 128 publications

References 11 publications

The constructs of site layout modeling: an overview

The constructs of site layout modeling: an overview

A CAD-Based Site Layout for Irregular Facilities Using ACO

A hybrid WOA-CBO algorithm for construction site layout planning problem

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