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Transportation & Infrastructure

Vahid Balali
Areas of expertise:
• Experimental and computational approaches for image-based recognition
• 3D localization
• Retro-reflectivity infrastructure evaluation
Research focus:
• Visual data sensing and analytics for AEC industry
• Virtual design and construction for infrastructure asset management and interoperable system integration
• Smart cities in transportation for sustainable infrastructure decision-making

Vahid Balali

Research lab

Selected as one of ENR California’s Top 20 Under 40, Dr. Balali is actively involved in industry collaboration and outreach. He is an associate member of ASCE and CMAA, committee member of the ASCE Data Sensing and Analysis and ASCE Visual Information Modeling and Simulation committees, and friend member of TRB committees. Dr. Balali is on the editorial board of the American Journal of Civil and Architectural Engineering and reviewer of several top-notch Journals. He holds a Ph.D. in Civil Engineering from University of Illinois at Urbana-Champaign and joined the CSULB Civil Engineering and Construction Engineering Management Department as an Assistant Professor in Fall 2016. He is a BIM and Project Controls Specialist at STV Inc., and in 2016, was inducted into the CSULB chapter of the National Academy of Inventors


Dr. Hamid Rahai Headshot
Areas of expertise
Industrial water treatment
Air pollution
Renewable energy
Industrial aerodynamics
Research focus
Bio-fluids simulation and diagnosis
Water point-source contaminations and mitigation
Diesel emission control
Air pollution diffusion, modeling, industrial aerodynamics
Wind energy within urban canopy
Turbulence and mixing processes

Hamid Rahai


Dr. Rahai is founding director of the Center for Energy and Environmental Research & Services (CEERS), COE Associate Dean for Research & Graduate Studies, and a professor in CSULB’s Mechanical & Aerospace Engineering and Biomedical Engineering departments. He has supervised over 70 MS theses and projects and PhD dissertations, and authored more than 90 papers and presentations. He has overseen more than $5 million in grants and contracts from the National Science Foundation, Federal Highway Administration, California Energy Commission, California Air Resources Board, Port of Los Angeles, Caltrans, Boeing, Southern California Edison, Long Beach Airport, Long Beach Transit, and private industries. The holder of two patents, Dr. Rahai has been inducted into the CSULB National Academy of Inventors chapter and is the recipient of a 2004 Northrop Grumman Excellence in Teaching Award and 2014 Outstanding Engineering Educator Award from the Orange County Engineering Council.

Shadi Saadeh
Areas of expertise:
•  Highway materials
•  Pavement
•  Modeling
•  Preservation
Research focus:
•  Granular materials, including asphalt mixes and its constituents
•  Experimental characterization of highway materials
•  Constitutive modeling of highway materials
•  Performance evaluation of highway infrastructure
•  Flexible pavement design and analysis
•  Experimental characterization of highway materials using X-ray CT, image analysis techniques, and mechanical testing.

Shadi Saadeh

Research lab

Dr. Saadeh worked for the Texas Transportation Institute and Louisiana Transportation Research Center before joining CSULB as an Assistant Professor of Civil Engineering in 2007. He earned his Ph.D. in Civil Engineering from Texas A&M University, and his research papers have appeared in the Journal of the Transportation Research Board, American Society for Testing and Materials, Journal of the American Society for Civil Engineers, Journal of the Association of Asphalt Paving Technologists, and Journal of Computational Materials Science. Dr. Saadeh is principal investigator of the Joint Training and Certification Program that CSULB operates with Caltrans.