(BIM-2469) Practical Beneficial Use of 4D Scheduling on Any Size Project
Authors: David A. Giardino
Abstract: This paper will review the practical, beneficial use and implementation of 4D scheduling on six projects. The projects range, in construction costs, from $1 million to $100 million. All of the projects are bridge and heavy highway related and are design bid build project delivery for the Rhode Island Department of Transportation (RIDOT). All have been bid and are either under construction or completed. This paper will discuss how the implementation of 4D is practical and cost beneficial for any size project as opposed to the widely assumed notion that it is only useful on large complex projects.
(BIM-2506) Virtual Construction Management
Authors: Michel Guevremont, P.Eng. PSP
Abstract: With great tools on the market to perform 4D scheduling for the heavy civil construction industry, a major Canadian utility company recently enhanced its virtual construction 4D scheduling practice on two new facilities. The latest simulations included equipment, just-in-time handling, equipment storage and displacement, space identification and reservation, distinct trade and contract identification in addition to traditional time sequencing. This development included multiple types of contracts: mechanical, electrical, architecture and turbine-generating equipments in addition to excavations, concrete and superstructure. This has been done using both owner and contractors schedules (baselines and updates) and 3D mock-ups for hydroelectrical powerhouse projects. Simulations were performed both at the master schedule level and for specific contracts with consideration of the different but appropriate level of details. The 4D process has so far been internal to the owner's organisation for project information validation only. Lately, 3D ViaTM Composer Player Pro provided light program files and easily interoperable for the majority of the project control staff. The system helps office personnel for strategic decisions and field personnel for operational considerations.
(BIM-2558) Building Information Modeling For Infrastructure Projects – Emphasis on 4D, 5D and 6D
Authors: Jignesh S. Shah, PE CCP EVP
Abstract: Building Information Modeling has been widely used in the building construction industry for nearly a decade now, but in the civil infrastructure industry it is not that widespread due to many reasons like massive scale, differences in geometry involved and the types of software available currently. This paper will discuss how the BIM technology is being used in civil infrastructure sector specifically taking a detailed look at the 4D Scheduling/Sequencing, 5D Cost Estimating and 6D Visualization. Introduction to different types of software available in market, the process to perform these functions, benefits of using BIM and limitations, difficulties and lessons learned. It is absolutely certain that the currently underused BIM techniques for civil infrastructure will develop and overcome all the limitation. All the stake holders of the infrastructure projects will have to realize that BIM adoption for their projects is more about cultural change than technological enablers to maximize profit.
(BIM-2569) Housing Price Estimation Using Statistical Methods and GIS Technology
Authors: Dr. Satish B. Mohan; Dr. Alan Hutson
Abstract: This paper presents a statistical model for housing price estimation, and links it to the GIS map layers of a municipality, illustrating the variations in the prices of homes based on neighborhood and other variables. It was found that six major variables effect the price of a home: frontage width, depth of the parcel, age, square feet living area, architectural building style, and the neighborhood. Neighborhood had the maximum effect. A multiple regression model was developed using the 2009 housing assessment data of 33,342 houses of a town in Western New York. The model had high accuracy with a R2 value of 0.9046, and tested well on validation. This statistical model can be used for mass appraisal of housing in towns with similar characteristics. Multiple regression models developed in this research were then linked to GIS map layers to enable the appraising authority to visualize the distribution of housing based on price, or age or by neighborhood. This can help in resolving any inequities within a neighborhood, and between neighborhoods.
(BIM-2632) Infrastructure: Visualizing Project Success
Authors: Connor Christian; Andy Kayhanfar
Abstract: An inside look at how building information modeling (BIM) technology can help visualize project success on the world’s largest projects. Through revolutionary technology, owners and contractors can envision project success from design to construction, while project managers can aggregate model data and quickly react to changes in real time. An exploration of the benefits of BIM technology, this paper dives into maximized project performance through alleviating impacts caused by sudden schedule and design changes. It also looks at better-tracked progress and managed assets through linking project data to BIM. Lastly, all of this is tied together through a single visual model where any project dimension can be accessed. Large capital project requirements are changing — leverage BIM to stay ahead of the curve.
(BIM-2697) Integrating Building Information Modeling with Project Schedule
Authors: Vidya C. Dixit
Abstract: Design-Build programs in the past have encountered many challenges. Creating one vision where all stakeholders viz. owners, architects, engineers, and contractors can be in one forum to create a common goal is always a desire for a design-build delivery model. 4D BIM can create this forum where the virtual model can be used to exchange information between the stake holders and this new wave of 3D technology can transform to provide simulation of virtual construction. A 4D model is accessible to all the stake holders and foster exchange of ideas in variety of ways. It helps mitigate risk, constructability review, analyze scope changes and delay analysis through visual representation and also helps in resource utilization.
This paper addresses the methods involved in implementation of a 4D BIM technology for a design-build capital program for a major airport. The author will elaborate his experience in working with a diverse team and implementing 4D BIM for building a brand new concourse in an existing airport. The author will also highlight the challenges encountered along with the benefits reaped.