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Research Engineer II / InstructorTransportation Systems Engineering
Sustainable Education Building 207
Dr. Haobing Liu is a Research Engineer II and Instructor in School of Civil and Environmental Engineering at the Georgia Institute of Technology. His career and research interests center on energy, emissions, and air quality modeling of transportation sectors, with special interests in exploring innovative technologies and policies that shape sustainable transportation systems.
Haobing's Ph.D. dissertation research, “Modeling the Impact of Road Grade on Driving Behavior, Vehicle Energy Consumption, and Emissions” examines vehicle operations in response to road grade changes, and the incorporation of such behaviors into energy, emissions and air quality modeling system. Haobing developed a streamlined machine learning method using Python to generate high-resolution road grade based on United States Geological Survey Digital Elevation Model (DEM), an open source LiDAR data. The straightforward method and publicly available DEM enable researchers to easily implement in any other regions across the United States. With the grade information available, Haobing also built a Hierarchical Bayesian Model to examine the impact of road grade on vehicle operations, including the operation heterogeneity across drivers, vehicle types, and road types. The model indicated a strong correlation between driving behavior and road grade, while such relationship varies by drivers and vehicle types. The results also highlighted the importance of integrating road grade and grade-behavior correlation into vehicle energy consumption and emissions modeling, especially for heavy-duty vehicles. The findings can lead to enhanced agency guidance on improved emissions modeling and have the potential to improve vehicle activity model with grade impact integrated.
In addition to dissertation research, Haobing has also leveraged various emerging data science and computer science techniques to address critical inquiries in sustainable transportation system:
In this field, Haobing has authored or co-authored more than 15 peered-review papers in well-known transportation and energy journals, including Transportation Research Part-C, Transportation Research Part-D, Applied Energy, Journal of Transportation Engineering (ASCE), and Journal of Transportation Research Record.