Algorithm for Accurate Three‐Dimensional Scene Graph Updates in High‐Speed Animations of Previously Simulated Construction Operations

Abstract

Visualization of construction operations is an important

Modeling Framework and Architecture of Hybrid System Dynamics and Discrete Event Simulation for Construction

“…The time advancing issue in hybrid continuous and discrete simulation techniques has also been addressed in other areas besides hybrid SD‐DES simulation, such as high speed or concurrent animation and visual interactive simulation (Rekapalli et al, 2009; Rekapalli and Martinez, 2007), in construction‐related cases. The proposed time advancing methods in these research efforts can also be employed for the prospective hybrid SD‐DES models when hybrid SD‐DES model developers want to add concurrent animation or real‐time user interactions (regardless of interaction medium) as supporting capabilities to the SD‐DES‐based hybrid models.…”

“…In addition, by using an HLA‐based architecture hybrid simulation, developers will be capable of adding prevalent construction supporting services, such as 2D/3D visualization capabilities (Rekapalli and Martinez, 2007; Rekapalli et al, 2009), automated material and equipment tracking capabilities (Chi et al, 2009; Azimi et al, 2009; Skibniewski and Jang, 2009), and construction cost and schedule optimization (Adeli and Karim, 1997; Karim and Adeli, 1999), to the hybrid simulation as supporting federates for the federation. This capability will also enhance the hybrid models, which utilize HLA, by making them more adaptable to future changes in the methods and technologies utilized within the construction industry.…”

'Designing in' Complex System Interaction: Multi-Agent Based Systems for Early Design Decision Making

“…In the context of this paper, a multi agents system (MAS) deploys agents with clearly defined attributes, objectives, goals, behavioral characteristics [8], and domain knowledge [9] in early design decision-making. An agent can be defined as a proactive, interactive and autonomous hardware and/or software-based computer system that can identify environmental changes and adapt [10] itself to the new environment.…”

Developing Crew Allocation System for the Precast Industry Using Genetic Algorithms

“…GA technique is defined as a computational model simulating the process of genetic selection and natural elimination in biological evolution, Cheng, 1994a, 1994b;Kumar et al, 2009). In recent years, various approaches to construction simulation have been advanced such as object identification and tracking (Chi et al, 2009) and high-speed animation (Rekapalli et al, 2009). In this work, GA is designed to be coupled with process-simulation model for further guidance of the simulation model toward choosing the best processing crew among sets of possible alternatives.…”

“…In recent years, various approaches to construction simulation have been advanced such as object identification and tracking (Chi et. al., 2009) and high speed animation (Rekapalli et. al., 2009).…”