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Publications

Journal Articles (* indicates student- or postdoctoral advisees)

2022

  1. Okpala, I.*, Nnaji, C., and Gambatese, J. (2022) “Assessment Tool for Human-Robot Interaction Safety Risks during Construction Operations” Journal of Construction Engineering and Management (Accepted)
  2. Osei-Kyei, R. Jin, X., Nnaji, C., Wuni, I., and Akomea-Frimpong, I. (2022). “Review of Risk Management Studies in Public-Private Partnerships: A Scientometric analysis.” International Journal of Construction Management
  3. Okoro, C., Nnaji, C., Adediran, A. (2022). “Determinants of Immersive Technology Acceptance in the Construction Industry: management perspective.” ECAM
  4. Afolabi, A.O.; Nnaji, C.; Okoro, C. (2022). “Immersive Technology Implementation in the Construction Industry: Modeling Paths of Risk.” Buildings
  5. Nnaji, C., Jin, Z., and Karakhan A. (2022) “Safety and Health Management Response to COVID-19 in the Construction Industry: A Perspective of Fieldworkers” Journal of Process Safety and Environmental Protection
  6. Ibrahim, A.*, Nnaji, C., and Shakouri, M. (2022). “Influence of Sociodemographic Factors on Construction Fieldworkers’ Safety Risk Assessments.” Sustainability, 14(1), 111.
2021
  1. Omobolanle, O., Gonslaves, N., Akanmu, A., and Nnaji, C.(2021). “Assessment of a Passive Wearable Robot for Reducing Low Back Disorders during Rebar Work” Journal of Information Technology in Construction. ​
  2. Nnaji, C. and Awolusi, I. (2021) “Critical Success Factors Influencing WSD Implementation in AEC Industry. Technological and Society 
  3.  Omobolanle, O., Gonslaves, N., Akanmu, A., and Nnaji, C. (2021). “Digital Twin Driven Framework for Improving Self-management of Ergonomic Risks” Journal of Smart and Sustainable Built Environment 
  4.  Akanmu, A., Ogunseiju, O., Olayiwola, J., and Nnaji, C. (2021). “Recognition of Worker Actions from Time-Series Signal Images using Deep Convolutional Neural Network.” Journal of Smart and Sustainable Built Environment 
  5. Okpala, I.*, Nnaji, C., Awolusi, I., and Akanmu, A. (2021). “Success Model for Implementing Wearable Sensing Devices in The Construction Industry” Journal of Construction Engineering and Management 
  6. Okpala, I.*, Nnaji, C., and Awolusi, I. (2021). “Wearable Sensing Devices Acceptance Behavior in Construction Safety and Health: Assessing Existing Models and Developing a Hybrid Conceptual Model” Construction Innovation 
  7. Nnaji, C., Awolusi, I., Park, J., and Albert, A. (2021). “Wearable Sensing Devices: Towards the Development of a Personalized System for Construction Safety and Health Risk Mitigation.” Sensors. ​
2020
  1. Uddin, J., Albert, A., Alsharef, A., Pandit, B., Patil, Y., and Nnaji, C. (2020) “Hazard Recognition Patterns Demonstrated by Construction Workers” International Journal of Environmental Research and Public Health
  2. Ogunrinde, O.*, Nnaji, C., and Amirkhanian, A. “Development of an Automation Adoption Readiness Index for Quality Management: A Focus on Highway Construction.” Journal of Infrastructural Systems, ASCE 
  3. Ogunrinde, O.*, Nnaji, C., and Amirkhanian, A. “Quality Management Technologies in Highway Construction: Stakeholders’ Perception of Utility, Benefits, and Barriers.” Practice Periodical on Structural Design and Construction ASCE
  4.  Alomari, K., Gambatese, J., Nnaji, C., and Tymvios, N. (2020) “Impact of Risk Factors on Construction Worker Safety: A Delphi Rating.” Arabian Journal for Science and Engineering 
  5. Ogunrinde, O.*, Amirkhanian, A., Corley, M., and Nnaji, C. “Effect of Nighttime Construction on Quality of Asphalt Paving.” Journal of Construction Engineering and Management, ASCE 
  6. Nnaji, C., Karakhan, A., Lee, H and Gambatese, J. (2020). “A Case Study to Evaluate Work Zone Safety Technologies in Highway Construction.” Practice Periodical on Structural Design and Construction ASCE 
  7. Nnaji, C. and Karakhan, A. (2020). “Technologies for safety and health management in construction: Current use, implementation benefits and limitations, and adoption barriers” Journal of Building Engineering  
  8. Nnaji, C., Jafarnejad, A., and Gambatese, J. (2020). “Effects of Wearable Light Systems on Safety of Highway Construction Workers” Practice Periodical on Structural Design and Construction ASCE
  9. Nnaji, C., Gambatese, J., Karakhan, and Osei-Kyei, R. (2020). “Development and Application of Safety Technology Decision-making Adoption Tool” Journal of Construction Engineering and Management, ASCE
  10. Nnaji, C., Okpala, I.*, and Awolusi, I. (2020). “Wearable Sensing Devices and Accident Prevention: Potential Impact and Current Use” Professional Safety, ASSP 
  11. Okpala, I.*, Nnaji, C., Karakhan, A. (2020). “Utilizing Emerging Technologies for Construction Safety Risk Mitigation.” Practice Periodical on Structural Design and Construction ASCE​
2019
  1. Nnaji, C., Gambatese, J., Lee, H.W., and Zhang, F. (2019). “Improving Construction Work Zone Safety Using Technology: A Systematic Review of Applicable Technologies.” Journal of Traffic and Transportation Engineering
  2. Nnaji, C., Gambatese, J., Karakhan, A., and Eseonu, C. (2019). "Influential safety technology adoption predictors in construction". Engineering, Construction and Architectural Management.​

2018
  1. Nnaji, C., Lee, H., and Gambatese, J. (2018). “Work Zone Intrusion: Technology to Reduce Injuries and Fatalities.” Professional Safety, 63(04), 36-41
  2. Karakhan, A., Rajendran, S., Gambatese, J., and Nnaji, C. (2018). “Measuring and Evaluating Safety Maturity of Construction Contractors: Application of Choosing by Advantages Decision-Making Method.” Journal of Construction Engineering and Management, 144(7), 04018054
  3. Nnaji, C., Lee, H., Karakhan, A., and Gambatese, J. (2018). “Development of Decision-Making Framework to Select Safety Technologies for Highway Construction.” Journal of Construction Engineering and Management, ASCE
  4. Lee, H., Harapanahalli, B., Nnaji, C., Kim, J. and Gambatese, J. (2018). “Feasibility of using QR Codes in Highway Construction Document Management.” Transportation Research Record, 0361198118776133​

Book Chapters 

  1. Okpala, I*., Nnaji, C., Ogunseiju, O., and Akanmu, A. (in press). Assessing the Role of Wearable Robotics in Construction Industry: Potential Safety Benefits, Opportunities, and Implementation Barriers. Automation and Robotics in the Architecture Engineering, and Construction Industry. Springer
  2. Karakhan, A., Xu, Y.,  Nnaji, C. , and Alsaffar, O. (2019). "Technology Alternatives for Workplace Safety Risk Mitigation in Construction: Exploratory Study." In Advances in Informatics and Computing in Civil and Construction Engineering (pp. 823-829). Springer, Cham.

Conference Papers

2022
  1. Okonkwo, C., Awolusi, I. and Nnaji, C. (2022) “Privacy and Security in the Use of Wearable Internet of Things for Construction Safety and Health Monitoring” CIB 2022
  2. O’Leary, J., Awolusi, I., Alzarrad, A., and Nnaji, C. (2022). “Eco-efficient Construction: The Utilization of Nanotechnology and 3D Printing in the Sustainable Building Practices of the AEC Industry.” EPiC Series in Built Environment, 3, 461-469.
  3. Ibrahim, A.*, Okpala, I.*, Nnaji, C., Namian, M. and Koh, A. (2022) The Impact of Fatigue on Hazard Recognition: An Objective Pilot Study.” ICCEPM
  4. Khan, M.*, Mccrary, M.*, Nnaji, C., and Awolusi, I. (2022) “Worker Safety in Modular Construction: Investigating Accident Trends, Safety Risk Factors, and Potential Role of Smart Technologies ICCEPM
  5. Awolusi, I., Sulbaran, T., Song, S. Nnaji, C. and Ostadalimakhmalbaf, M. (2022) “Safety Education in the Curriculum of Construction Programs.” ICCEPM
  6. Sanni, T.*, Nnaji, C., Awolusi, I., Al-Bayati, A. (2022) “Safety Innovation Adoption in Construction: Role of Safety Compliance and Safety Attitude”
  7. Namian, M., Al-Bayati, A., Nnaji, C., (2022) “Role of Safety Training in Reducing Fatigue Among Construction Workers” In Construction Research Congress 2022: Health, Safety and Workforce Issues. Reston, VA: American Society of Civil Engineers.
  8. Awolusi, I., Martinez-Molina, A. Nnaji, C., Alamaniotis, M. and Sulbaran. (2022) “Utility of Wearable Sensing Devices for Environmental Monitoring on Construction Sites
  9. Ibrahim, A.*, Nnaji, C., Shakouri, M., and Namian, M. (2022) Impact of Hazard State on Construction Workers Safety Risk Assessment
  10. Ibrahim, A.*, Nnaji. C., Jin, Z. (2022). Biomechanical Analysis in Construction Engineering and Management Research: A Review
  11. Okpala, I*., Nnaji, C., and Gambatese, J. (in press). “Investigating Hazards and Safety Risks inherent in Human-Robot Interactions”. In Construction Research Congress 2022: Health, Safety and Workforce Issues. Reston, VA: American Society of Civil Engineers.
  12. Okpala, I*., Sanni, T., and Nnaji, C. (in press). “Noise Management in Construction: Identifying Strategies and Controls for Improvement”. In Construction Research Congress 2022: Health, Safety and Workforce Issues. Reston, VA: American Society of Civil Engineers.​
2021
  1. Jalalpour, M.* and Nnaji, C. (2021), “Investigating the Impact of Trombe Wall on Building Energy Saving and Thermal Comfort - A Case Study.” CSCE 2021 Annual Conference
  2. Omobolanle, O., Gonslaves, N., Akanmu, A., and Nnaji, C. (2021). “Subjective Evaluation of Passive Back-Support Exoskeleton for Flooring Work.” Associated School of Construction 
  3. Gonslaves, N., Omobolanle, O., Akanmu, A., and Nnaji, C. (2021). “Influence of a Back-Support Exoskeleton on Physical Demands of Rebar Work.” Associated School of Construction​
2020
  1. Ogunseiju, O., Olayiwola, J., Akanmu, A., and Nnaji, C. (2020). “Digital Twin Driven Musculoskeletal Injury Prevention System.” CONVR 2020
  2. Moynihan, G., Lyu,Q.*, and Nnaji, C. (2020) “Developing a Decision Support Tool for Quantification and Reduction of Construction Material Waste” IEMS
  3. Karakhan, A., Gambatese, J., Simmons, D., and Nnaji, C. (2020). “Workforce Development and Sustainability in Construction” In Construction Research Congress 2020: Computer Applications and Simulation, Advanced Technologies, and Data Analytics.
  4. Shakouri, M., Nnaji, C., and Karakhan, A. (2020). “Alternative Risk Models for Optimal Investment in Portfolio-based Community Solar.” In Construction Research Congress 2020: Computer Applications and Simulation, Advanced Technologies, and Data Analytics.
  5. Ogunrinde, O.*, Nnaji, C., Amirkhanian, A. (2020). “Application of Emerging Technologies for Highway Construction Quality Management: A Review.” In Construction Research Congress 2020: Computer Applications and Simulation, Advanced Technologies, and Data Analytics.
  6. Okpala, I.*, Parajuli, A.*, Nnaji, C. and Awolusi, I. (2020). “Assessing the Feasibility of Integrating Internet of Things into Safety Management Systems: A focus on Wearable Sensing Devices.” In Construction Research Congress 2020: Computer Applications and Simulation, Advanced Technologies, and Data Analytics.
  7. Awolusi, I., Nnaji, C. and Okpala, I.* (2020). “Success Factors for the Implementation of Wearable Sensing Devices for Safety and Health Monitoring in Construction.” In Construction Research Congress 2020: Computer Applications and Simulation, Advanced Technologies, and Data Analytics.
2019
  1. Okpala, I.,* Nnaji, C. and Awolusi, I. (2019). “Emerging Construction Technologies: State of Standard and Regulation Implementation”. 2019 ASCE International Conference on Computing in Civil Engineering, Georgia, USA, June 17-19, 2019
  2. Nnaji, C., Kim, S. and Okpala, I.* (2019). “A Simulation Framework for Construction Management Technology Adoption Decision Making: A Composite Model”. 2019 ASCE International Conference on Computing in Civil Engineering, Georgia, USA, June 17-19, 2019​
  3. Awolusi, I., Nnaji, C., and Marks, E. (2019). “Enhancing Construction Safety Monitoring Through the Application of Internet of Things and Wearable Sensing Devices: A Review.” 2019 ASCE International Workshop on Computing in Civil Engineering 
2018
  1. Nnaji, C., Gambatese, J., and Karakhan, A. (2018). “Predictors of Construction Safety Technology Adoption.” CIB W099 International Conference, Salvador, Brazil, August 1-3, 2018
  2. Nnaji, C., Gambatese, J., and Eseonu, C. (2018). “Theoretical Framework for Improving Adoption of Safety Technology in Construction Industry.” In Construction Research Congress 2018 (pp. 356-366).
  3. Jafarnejad, A., Gambatese, J., and Nnaji, C. (2018). “Illumination and Visibility of Workers in Nighttime Highway Work Zones.” In Construction Research Congress 2018 (pp. 231-240).​
2017
  1. Nnaji, C., Okoro, C. (2017). “Leveraging Public-Private Partnership as an Effective Tool for Infrastructural Development in Emerging Economies: An Integrative Review.” International Conference on Infrastructure Development and Investment Strategies for Africa, Livingstone, Zambia, August 2017 
  2. Nnaji, C., Gambatese, J., Awolusi, I., and Oyeyipo. O. (2017). “Construction Safety Innovation Adoption in Nigeria: A Mixed Method Approach.” CIB W099 International Conference, Cape Town, South Africa, June 11-13, 2017 
  3. Gambatese, J., Nnaji, C., and Christianson, C. (2017). “Contracting for Prevention through Design (PtD): A Case Study.” CIB W099 International Conference, Cape Town, South Africa, June 11-13, 2017​
2016
  1. Nnaji, C. and Gambatese, J. (2016). “Worker Distraction Impacts on Safety and Work Quality: An Energy Component.” Construction Research Congress, ASCE, San Juan, Puerto Rico, May 31–June 2, 2016.

Recent Technical Publications/Reports 

  1. Gambatese, J., Louis, J., and Nnaji, C. (2022) “Alternative Technologies for Mitigating the Risk of Injuries and Deaths in Work Zones: Conduct of Research” NCHRP
  2. Gambatese, J., Louis, J., and Nnaji, C. (2022) “Guide to Alternative Technologies for Preventing and Mitigating Vehicle Intrusions into Highway Work Zones” NCHRP
  3. Nnaji, C. and Gambatese, J. (2021). “Approaches to Reducing Intrusion into Electric Utility Work Zones”, EPRI
  4. Nnaji, C., Gambatese, J., and Okpala, I*. (2021). “Protocol for Assessing Human-Robot Interaction Safety Risks”. Final Report, The Center for Construction Research and Training (CPWR).
  5. Eseonu, C., Gambatese, J., Nnaji, C. (2018). “Reducing Highway Construction Injuries through Improved Adoption of Safety Technology” CPWR
  6. Gambatese, J., Lee, H., and Nnaji C. (2017). “Work zone intrusion alert technologies: Assessment and practical guidance.” ODOT Research Unit, Oregon Department of Transportation
  7. Gambatese, J. and Nnaji C. (2015). “NIOSH Prevention through Design (PtD) Research Study: Construction SliDeRulE Case Studies.” National Institute for Occupational Safety and Health (NIOSH), Education and Information Division