Steven Ayer

Dr. Steven Ayer

orcid

Research Focus & Metrics

Academic Career Length

11Years (2016-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 March 2016 in Journal of Architectural Engineering
Verified
Journal Article
Open access
SASteven Ayer
Steven Ayer
JMJohn Messner
John Messner
CAChimay J. Anumba
Chimay J. Anumba
It is important for students in academic disciplines related to building design and construction to gain an understanding of the different sustainable design considerations that will affect a building’s performance. Additionally, it is important for these students to be able to generate, visualize, and assess the performance of alternative design options to determine the best possible approach. The research presented in this paper tasked students with performing a building redesign activity in which they had to design, visualize, and assess exterior wall designs to retrofit an existing facility and improve its sustainable performance. It was of interest to understand how augmented reality and simulation game technologies would influence students’ design processes during the activity. To measure student performance, 34 architectural engineering students, 47 architecture students, and 27 civil engineering students were given the same design activity using an augmented reality–based educational game...

1 September 2019 in Journal of Construction Engineering and Management
Verified
Journal Article
Closed access
WWWei Wu
Wei Wu
JHJustin Hartless
Justin Hartless
ATAaron Tesei
Aaron Tesei
VGVenkata Gunji
Venkata Gunji
SASteven Ayer
Steven Ayer
JLJeremi London
Jeremi London
The construction industry is facing a severe shortage of skilled workforce. Higher education is challenged to develop innovative strategies to help college students develop career-specific competency and accelerate the transition from novice to expert. Technology innovations such as virtual reality (VR) and mixed reality (MR) have been successfully integrated into learning and training programs to create authentic learning experiences within simulated virtual learning environments to facilitate tacit knowledge acquisition and workplace expertise development, which traditionally takes years of empirical experience and apprenticeship training. This study aims to explore potential VR and MR interventions in construction education and workforce development. It is directed at enhancing understanding of key differences between novices and experts and how VR and MR may facilitate tacit knowledge acquisition and expertise development to address the current skills gap in the construction industry. A simulation of accessibility design review and assessment for a tiny house was conducted via VR and MR mock-ups with the participation of both student novices and professional experts to collect behavioral and perceptual data using instruments that included a think-aloud protocol, a pair of pre- and postsurvey questionnaires, and audio/video recordings. Comparative analyses were conducted, and the results indicated that student novices, despite their lack of expertise, demonstrated comparable patterns of behaviors and achieved design review outcomes similar to those of professional experts with the VR and MR mock-ups. The findings of this study contribute to the body of knowledge by providing preliminary evidence of learning affordances of VR and MR in bridging experience-related gaps and suggesting opportunities for accelerating workplace expertise development among college students via technology intervention. These findings also have the potential to inform instructional design and pedagogical approaches that integrate VR and MR technology in undergraduate construction and engineering curricula.

24 September 2019 in Infrastructures
Verified
Journal Article
Open access
PDF file
AFAmr Fenais
Amr Fenais
SAMUEL ARIARATNAMSAMUEL ARIARATNAM
SAMUEL ARIARATNAM
SASteven Ayer
Steven Ayer
NSNikolas Smilovsky
Nikolas Smilovsky
Underground infrastructure is a critical component of the basic utility services provided to society. The single largest threat to the safety of underground utility lines is being struck by construction earthwork projects. One of the causes of this problem is miscommunication between utility owners and contractors. Therefore, it is vitally important to coordinate resources, share information, and ensure efficient communication between construction personnel and utility owners. Geographic information systems (GIS) provide a solution for interoperability in the construction industry. Applying such technologies in the field of underground construction requires accurate and up-to-date information. Augmented reality (AR) has been identified as a technique that could enhance information extraction from the virtual world to the real world and improve the access and utilization of information. However, there is currently limited research that has integrated AR and GIS and evaluated the effectiveness and usability of the combination in this domain. The main objective of this research was to develop an integrated AR-GIS for mapping and capturing underground utilities using a mobile device. The data are shared instantaneously with other stakeholders through a cloud-based system. In order to achieve these objectives, a design research approach was utilized to develop and evaluate a mobile extended-reality (XR-GIS) application. Validation of the XR-GIS was conducted through a focus group discussion and a questionnaire. The results revealed that 86% of the participants validated the system’s adaptivity to the underground construction. We can conclusively say that this research has produced an efficient solution for data collection and sharing among stakeholders in the underground construction industry.

1 January 2019 in Advances in Civil Engineering
Verified
Journal Article
Open access
PDF file
IKImad A. Khalek
Imad A. Khalek
JCJad M. Chalhoub
Jad M. Chalhoub
SASteven Ayer
Steven Ayer
In a building context, decisions made early in the design phase can have a major impact on maintainability of the resulting facility. Effectively leveraging the knowledge of facility management teams in the design stage can lead to improved maintainability in the operation phase, but this feedback can be challenging to elicit during the design stage because facility management teams may not be formed by the time of design. This requires designers, who may not have facility management experience, to think like facility managers in order to consider the needs of the maintenance teams. This paper examines the extent to which different visualization media may be able to enable individuals without prior maintenance experience to identify maintainability concerns in a design model. Student participants, without prior maintenance experience, were randomly assigned to explore a design to assess maintainability concerns with either augmented reality (AR) or a traditional computer screen for viewing a Building Information Model (BIM). Their perceptions, behaviors, and statements were recorded and analyzed. Results indicate that BIM supports better identification of potentially problematic areas, but AR allows users to more consistently determine why an area is problematic. This suggests an opportunity to use a hybrid BIM/AR approach for identifying and resolving maintainability considerations during the design phase. The findings from this work provide evidence to illustrate how AR and BIM may enable individuals with limited experience to be able to effectively think like facility managers in order to make better maintainability decisions during design to lead to a better building during operation.

1 December 2020 in Journal of Construction Engineering and Management
Verified
Journal Article
Closed access
PDF file
WWWei Wu
Wei Wu
ASAngel Sandoval
Angel Sandoval
VGVenkata Gunji
Venkata Gunji
SASteven Ayer
Steven Ayer
JLJeremi London
Jeremi London
KSKieren Smith
Kieren Smith
Mixed reality (MR) has the potential to accelerate construction workforce training and enhance college education. However, there is a lack of empirical evidence in the research literature on how effective MR may be in facilitating student apprenticeship learning in field construction activities compared to the traditional paper-based approach. This research designed an outdoor wood-frame construction lab with two parallel sessions involving paper drawings (the control) and MR mockups (the experiment) for conveying design information. The research team used video recordings and questionnaires to collect behavioral and perception data for comparative analysis. The results indicated that student teams in the two sessions exhibited comparable construction productivity. However, they demonstrated different behavioral patterns and time allocation for technology use and reported different apprenticeship learning gains. This research also identified and discussed potential contributing factors that limited the success of MR. The contribution of this work resides in presenting empirical evidence of the impact of using MR on student apprenticeship learning through outdoor construction activities. It also provides peer educational researchers with valuable insights on how to study pedagogical use of MR with consideration of potential challenges that are present in realistic construction environments.

20 April 2021 in Journal of Information Technology in Construction
Verified
Journal Article
Open access
PDF file
JCJad Chalhoub
Jad Chalhoub
SASteven Ayer
Steven Ayer
SASamuel T. Ariaratnam
Samuel T. Ariaratnam
The construction industry is facing a severe labor shortage that is threatening the performance of projects around the world. Advanced technologies may be able to alleviate the effects of this labor cliff. Specifically, Augmented Reality (AR) has been shown to enhance the performance of current industry professionals completing different construction tasks and is also being explored as a learning tool for students and technicians alike. This research studies if AR can be used as a tool to enable untrained individuals to complete construction tasks. Three groups were identified for this research: construction professionals, construction students, and individuals with no construction experience. All three groups completed two construction tasks with AR, including the assembly of prefabricated electrical conduit and the layout of electrical devices in a room. The results show that all three groups completed the task in statistically similar times; however, the work of individuals with no construction experience had significantly lower accuracy during the electrical device layout task. These results suggest that construction companies may be able to leverage untrained individuals to perform certain construction tasks with AR, enabling trained and experienced professionals to focus on more challenging tasks.