Current Research Team

Current Research Team


Dr. John E. Taylor


JT is the Frederick Law Olmsted Professor in the School of Civil and Environmental Engineering at Georgia Tech where he is Director of the Network Dynamics Lab. He specializes in investigating engineering network dynamics of industrial and societal importance. His current research focuses on; (1) achieving sustained energy conservation by coupling energy use with occupant networks and examining inter-building network phenomena in cities, and (2) understanding and improving response times by affected human networks during extreme events in urban areas. His research extends from developing virtual and augmented reality applications to collect and visualize urban scale data, to developing real-time interventions to improve urban sustainability and resilience. JT enjoys hanging out with his daughters, traveling and photographing the world, reading, running, cycling, and collecting/creating art.


Dr. Neda Madi

City Infrastructure Analytics Director

Neda is research faculty in the School of Civil and Environmental Engineering at Georgia Tech, and currently the City Infrastructure Analytics Director in the Network Dynamics Lab at Georgia Tech. She holds a PhD in Civil Engineering from Virginia Tech, where she studied the dynamic interrelationships between space-time fluctuations of human mobility and energy use in urban areas. Her primary research is in the area of city infrastructure systems with a focus on human-infrastructure system interactions. She primarily explores the complexities of evolving human-infrastructure interrelationships and their space-time fluctuations to quantify, explain, predict, and enhance urban dynamics towards sustainable urbanization.

Christin Salley

PhD Student

Christin is a PhD student in the School of Civil and Environmental Engineering at Georgia Tech. She received her BS in Fire Protection Engineering, along with a certification and citation in Science, Technology, and Society from the University of Maryland in 2019. She received her MSE in Civil Engineering from The Johns Hopkins University in 2020. Christin’s research is at the intersection of social media, infrastructure systems, and disaster response. She is also personally passionate about pathways of engineering (investigating pursuits of engineering at different educational levels) and desires to train, mentor, and teach the next generation of engineers while conducting research that benefits various communities. In her free time, she enjoys spending time with family and friends, traveling, and trying new restaurants.

Xiyu Pan

PhD Student

Xiyu is a PhD student in the School of Civil and Environmental Engineering at Georgia Tech. He received his BE degree in Construction Management at Chongqing University and MS degree in management at Tongji University. Xiyu’s research vision is to improve human well-being in buildings and cities. He is interested in utilizing the smart city digital twin, crowd simulation, optimization, and other quantitative methods to develop technical solutions to city problems. In his free time, he enjoys spending time with his cat, Panda, drinking bubble tea, and trying nice restaurants.

Michael Thomas

PhD Student

Michael is a PhD student in the Computational Science and Engineering program focusing on Civil and Environmental Engineering. Michael completed a BS in Mathematics from Kennesaw State University and an MS in Biostatistics from Drexel University. Michael’s work has focused on collaborating with state and city governments to describe public health issues ranging from the health of populations with disabilities to disease surveillance. His primary research interests include leveraging quantitative methods and multiple data sources to characterize public health phenomena. When not scratching his head in front of a computer, Michael can be found running, eating popcorn, or starting short-lived book clubs.

Jiajia Xie

PhD Student

Jiajia is a PhD student in the Computational Science and Engineering program with a focus on network science and computational modeling. He received an MS in Computational Science and Engineering from the school of ISyE at Georgia Tech and a BS in Economics from Presbyterian College. His research focuses on development of smart city digital twin systems that ingest real time data and the associated analytics to improve urban sustainability and resilience. In his spare time, he enjoys cooking, basketball, and trips for food.

Lei Xu

PhD Student

Lei is a PhD student in the School of Civil and Environmental Engineering at Georgia Tech. She earned her BS degree in Building Environment and Facilities Engineering and MS degree in Heat, Gas Supply, Ventilating and Air Conditioning Engineering at Tongji University. Her research works mainly focused on building energy efficiency and occupant behavior simulation. She is interested in occupants’ interactions with building systems. She enjoys cooking, reading and hiking in her spare time.

Mathias Bermeo

Masters Student

Mathias is a first-year master’s student in the CEE program at Georgia Tech. Mathias completed a BS in Civil Engineering with a concentration in structures and a Certificate in Entrepreneurship & Innovation from Purdue University. He is an Honorary Fellow of the Belgian American Education Foundation. He is interested in the application of new technologies and methods in the construction industry and seeks to explore social, environmental and economic effects in the lifecycle of constructed facilities. Outside of his studies, Mathias enjoys playing chess, listening to classical music and spending time outdoors.

Hoang Ly

Undergraduate Student

Hoang Ly is an undergrad civil engineering student minoring in chemistry, in the BS/MS program for environmental engineering, and a 2020 UN Millennium Fellow. He was the UG researcher on our Smart Uptown project to develop a Smart City Digital Twin of Columbus, GA, and is starting the Smart Sustainable Cities Club at GT this fall. He is currently researching connected job site technologies and asset management systems with Shadow Ventures in conjunction with Bosch. In his free time, Hoang enjoys hiking, mountain biking, and cycling.