Research Conducted by Assistant Professor, Changbum Ahn

Smart and Sustainable Construction Research Group

The Smart and Sustainable Construction (SSC) Research Group focuses on data-driven techniques and smart-sensing technologies for transforming traditional project delivery processes into integrated sustainable practices, including construction workers’ unsafe behavior monitoring using inertial measurement units, occupancy sensing and eco-feedback based existing wireless network infrastructure, automated construction resource tracking, and life-cycle assessment of civil infrastructure systems.

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Construction Safety Hazard Detection Through Continuous Monitoring of Construction Workers’ Behavior Using Wearable Wireless Sensor Networks

The goal of this research is thus to provide a continuous and reliable assessment of safety hazards by exploring the application of low-cost wireless sensor networks (WSNs), consisting of wearable inertial measurement units (IMU) and wireless data communication devices, in monitoring construction workers’ behaviors.

Occupant Intervention System to Drive Energy Efficiency in Commercial and Institutional buildings

The goal of this research is thus to develop a system to track temporary occupants’ energy load and provide effective occupant intervention in commercial and institutional building settings.

Automated Recognition of Construction Equipment Driving Events using a Smartphone as a Multi-sensor Hub

This research, in particular, focuses on the analysis of data from inertial measurement units (IMU) (e.g., three-axis accelerometer, gyroscope, magnetometer) embedded in a smartphone, and leverages the effectiveness of the driving event recognition by data fusion with other sensing information from the smartphone (e.g., GPS, cellular data network, video cameras).

An Integrated Framework for Estimating, Benchmarking and Monitoring the Environmental Impacts of Construction Operations.

This research aims to establish an integrated management framework that encompasses environmentally conscious planning and environmental performance monitoring in order to facilitate environmentally sustainable construction practices.