Moradi, S; Nasirzadeh, F and Golkhoo, F (2015) A hybrid SD-DES simulation approach to model construction projects. Construction Innovation, 15(1), pp. 66-83. ISSN 1471-4175
Abstract
Purpose - The purpose of this research is to propose a hybrid simulation framework which can take into account both the continuous and operational variables affecting the performance of construction projects. Design/methodology/approach - System dynamics (SD) simulation paradigm is implemented for the modelling of the complex inter-related structure of continuous variables and discrete event simulation (DES) is implemented for the modelling of operational influencing factors. A hybrid modelling framework is then proposed through combination of SD and DES to simulate the construction projects. Findings - This paper discusses the deficiencies of two traditional simulation methods - SD and DES - for simulation of construction projects which can be compensated by implementing hybrid SD-DES model. Different types of basic hybrid structures and synchronisation methods of SD and DES models are introduced. Practical implications - The proposed hybrid framework discussed in this research will be beneficial to modellers to simulate construction projects. Originality/value - The paper introduces a theoretical framework for a hybrid continuous- discrete simulation approach which can take into account the dynamics of project environment arising from the complex inter-related structure of various continuous influencing factors as well as the construction operations. Different steps required to develop the hybrid SD-DES model and synchronisation of SD and DES simulation methods are illustrated.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | discrete event simulation,process analysis,construction simulation,hybrid simulation,modelling,system dynamics |
| Index terms: | construction simulation, system dynamics, construction project, methodology, influencing factor, discrete event simulation, construction operation, dynamics, paradigm, process analysis, modelling, hybrid simulation |
| Subjects: | construction operations, analytical methods, modelling and simulation, computing systems, risk assessment, systems engineering, production management, management, education and knowledge transfer, research methods |
| Topics: | Site Management, Digital Applications, Risk Management, Engineering Principles, Research Practice, Project Management, Business Strategy |
| Descriptive scope: | 4 PCTA |
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