CLOSE OVERLAY

Varsha Ravichandra-Mouli

TITLE

Research Scientist, CTRE

PHONE

515-294-4377

EMAIL

varsha@iastate.edu

AFFILIATIONS

InTrans, CTRE

About Varsha

Dr. Varsha Ravichandra-Mouli is a research scientist contributing to various research on transportation projects associated with the Center for Transportation Research and Education. Her research efforts are focused on real-time analytics and big data with a focus on the domain of maintenance and operations and has contributed to several research projects for the Iowa Department of Transportation and Federal Highway Administration.

Dan King

TITLE

Research Engineer, CP Tech Center

PHONE

515-294-2670

EMAIL

deking@iastate.edu

AFFILIATIONS

InTrans, CP Tech Center

About Dan

Mr. Dan King is a research engineer for the National Concrete Pavement Technology Center, where he assists with the center’s research and technology transfer efforts, putting the latest science in concrete pavements into practice around the country. He previously worked for the Iowa Concrete Paving Association and Iowa Ready Mixed Concrete Association, where he provided his expertise in concrete pavements and materials for Iowa’s construction and engineering communities.

Mr. King is registered as a professional engineer in Iowa. He received his bachelor’s and master’s degrees in civil engineering from the University of Illinois, and he is also currently pursuing a PhD in civil engineering at Iowa State.

Education


  • PhD, Civil Engineering, Iowa State University (Anticipated December 2023)
  • MS, Civil Engineering, University of Illinois at Urbana-Champaign, 2016
  • BS, Civil Engineering, University of Illinois at Urbana-Champaign, 2013

Certifications


  • Professional Engineer (PE) License, State of Iowa (No. P25712)
  • Flatwork Finisher Technician, American Concrete Institute
  • Field Testing Technician I, American Concrete Institute

Professional Experience


  • Research Engineer, National Concrete Pavement Technology Center, Iowa State University, Ames, Iowa, 2021–present
  • Concrete Research and Design Director, Iowa Concrete Paving Association & Iowa Ready Mixed Concrete Association, Ankeny, Iowa, 2015–2021
    • Advised Iowa’s construction and engineering communities on technical questions related to concrete pavement and materials
    • Areas of expertise included concrete pavement design, concrete mix design, pavement condition assessment, life-cycle cost analysis, and pavement management
    • Provided technical training and educational presentations at seminars, conferences, webinars, and workshops in Iowa and across the United States
    • Collaborated on concrete pavement research conducted by the National Concrete Pavement Technology Center at Iowa State University, including on concrete overlays and Performance Engineered Mixtures

Selected Publications


  • King, D., A. Baral, and J. Roesler. 2021. Photocatlaytic NOx Removal Efficiency and Surface Reflectance of Carbonated Mortars. Construction and Building Materials.
  • Tian, K., D. King, B. Yang, H. Ceylan, and S. Kim. 2021. Characterization of Curling and Warping Influence on Smoothness of Jointed Plain Concrete Pavements. Airfield and Highway Pavements.
  • Sen, S., J. Roesler, and D. King. 2019. Albedo Estimation of Finite-Sized Concrete Specimens. Journal of Testing and Evaluation, Vol. 47, No. 2, pp. 738–
  • Gross, J., D. King, H. Ceylan, Y. Chen, and P. Taylor. 2019. Optimized Joint Spacing for Concrete Overlays with and without Structural Fiber Reinforcement, InTrans Project 15-559. National Concrete Pavement Technology Center, Iowa State University, Ames, IA.
  • Gross, J., D. King, D. Harrington, H. Ceylan, Y. Chen, S. King, P. Taylor, and O. Kaya. 2017. Concrete Overay Performance on Iowa’s Roadways, InTrans Project 15-559. National Concrete Pavement Technology Center, Iowa State University, Ames, IA.
  • King, D., J. Roesler, and S. Sen. 2016. Emissions Reducing Benefits of Multi-Functional Photocatalytic Concrete Inlays. , 11th International Conference on Concrete Pavements, San Antonio, Texas, August 28–September 1, pp. 72–86.
  • Roesler, J., H. Chavan, D. King, and A. Brand. 2016. Concrete Slab Analyses with Field-Assigned Non-Uniform Support Conditions. International Journal of Pavement Engineering, Vol. 17, No. 7, pp. 578–589.
  • King, D., and J. Roesler. 2016. Surface and Microstructural Properties of Photocatalytic Cements for Pavement Applications, Report No. ICT-16-024. Center for Highway Pavement Preservation, Okemos, MI.
  • Sen, S., D. King, and J. Roesler. 2015. Structural and Environmental Benefits of Concrete Inlays for Pavement Preservation. Airfield and Highway Pavements 2015, pp. 697–707.
  • King, D., and J. Roesler. 2014. Backcalculation Procedure for Bonded Concrete Overlays of Asphalt Pavement. Transportation Research Record: Journal of the Transportation Research Board, Vol. 2457, No. 1, pp. 72–29.
  • King, D., J. and Roesler. 2014. Structural Performance of Ultra-Thin Whitetopping on Illinois Roadways and Parking.

Professional Affiliations, Honors, and Awards


  • American Concrete Pavement Association
    • Member, Design and Engineering Committee, 2018–present
    • Member and Co-Founder, Emerging Leaders Group, 2016–present
  • American Concrete Institute
    • Associate Member, 309-00 Consolidation of Concrete Committee, 2022–present
    • Vice President, Iowa State Student Chapter, 2020–present
    • Member, Iowa Chapter, 2015–present
  • University Transportation Center Outstanding Student of the Year, Center for Highway Pavement Preservation, 2015
  • Harvey H. Hagge Scholarship, Illinois Ready Mixed Concrete Association, 2014
  • Civil and Environmental Engineering Department Fellowship, University of Illinois at Urbana-Champaign, 2013–2014

Jonathan Wood

TITLE

Faculty Affiliate, CTRE

PHONE

515-294-1126

EMAIL

jwood2@iastate.edu

ADDITIONAL ROLES

Assistant Professor, Department of Civil, Construction and Environmental Engineering

AFFILIATIONS

InTrans, CTRE

About Jonathan

Dr. Jonathan Wood’s areas of research expertise include a focus on research method design and statistical/machinery learning methods with applications in areas such as geometric design, transportation safety, crash testing and vehicle safety, real-world impacts of driver assistance technologies (DAT) and other vehicle technologies, connected vehicle and autonomous vehicle systems, public transportation, and human factors (e.g., driver, cyclist, and pedestrian behavior). His research has developed analytical frameworks for generalizable safety effect estimates, causal inference methods, new statistical models, and practical implementations of research results. He is currently an assistant professor at Iowa State University and works closely on projects affiliated with the Center for Transportation Research and Education at the Institute for Transportation.

Before joining Iowa State University, he worked as a researcher/data scientist for the Ford Motor Company from 2017 to 2020. While there, he was the lead researcher for real-world safety and applied statistics. He led research in guiding policy development, regulation compliance, potential litigation considerations, and strategy development.

Education


  • PhD, Civil and Environmental Engineering, Pennsylvania State University, 2016
  • MS, Civil and Environmental Engineering, University of Utah, 2012
  • BS, Civil and Environmental Engineering, University of Utah, 2011

Professional Experience


  • Assistant Professor, Department of Civil, Construction, and Environmental Engineering, Iowa State University, July 2020–present
  • Assistant Professor, College of Engineering, Wayne State University, 2019–2020
  • Traffic Commissioner, City of Livonia, Michigan, 2019–2020
  • Safety and Sustainability Data Scientist, Global Data Insights & Analytics, Ford Motor Company, 2017–2020
  • Assistant Professor, Department of Civil and Environmental Engineering, South Dakota State University, 2016–2017

Selected Publications


  • Zhou, D., J. S. Wood, and V. Gayah. 2023. Integration of Machine Learning and Statistical Models for Crash Frequency Modeling. Transportation Letters: The International Journal of Transportation Research.
  • Wood, J. S., Z. Yu, and V. Gayah. 2022. Development And Evaluation of Frameworks for Real-Time Bus Passenger Occupancy Prediction. International Journal of Transportation Science and Technology.
  • Chen, H., A. Kim, and J. S. Wood. 2022. Adult occupant injury risk in rear impact and frontal impact: Effect of impact conditions and occupant-related factors.Traffic Injury Prevention, 23, No. 4, pp. 176–180.
  • Chen, H., A. Kim, M. Shen, and J.S. Wood. 2021. Child Occupant Injury Risk in Rear Impact and Frontal Impact: Effect of Impact Conditions and Occupant Related Factors. International Journal of Crashworthiness, 27, No. 5, pp. 1307–1316.
  • Zarindast, A., and J. S. Wood. 2021. A Data-Driven Smart Lighting Recommender System. Frontiers in Big Data, 4, pp. 1–10.
  • Zarindast, A., J. S. Wood, and A. Sharma. 2021. Application of Text Mining in Smart Lighting Literature – an Analysis of Existing Literature and a Research Agenda. International Journal of Information Management Data Insights, Vol. 1, No. 2.
  • Wood, J.S., and S. Zhang. 2020. Evaluating Relationships between Perception-Reaction Times, Emergency Deceleration Rates, and Crash Outcomes using Naturalistic Driving Data. Transportation Research Record: Journal of the Transportation Research Board, 2675, No. 1.
  • Wood, J. S, and E. T. Donnell. 2020. Empirical Bayes Before-After Evaluation of Horizontal Curve Warning Pavement Markings on Two-Lane Rural Highways in Pennsylvania,” Accident Analysis & Prevention, Vol.

Patents


  • Systematically Analyze Roadway Safety Problems and Simulate Interventions using Connected Vehicle and Other Innovative Datasets. US, Germany, and China Patents. (Patent Pending).
  • Insurance Management System. US, Germany, and China Patents. (Patent Pending).

Professional Affiliations and Service


  • Panel Member, NCHRP 22-54, Transportation Research Board, 2022–present
  • Paper Review Coordinator, TRB Standing Committee on Safety Performance and Analysis (ACS20), 2022–present
  • Member, TRB Standing Committee on Safety Performance and Analysis (ACS20), 2022–present
  • Member, Iowa Advisory Council on Automated Transportation, 2021–present
  • Panel Member, NCHRP 22-49, Transportation Research Board, 2019–present
  • Panel Member, NCHRP 22-45, Transportation Research Board, 2019–present
  • Member, TRB Standing Committee on Statistical Methods (ABJ80/AED60), 2017–present

Darla Weeks

TITLE

Secretary, InTrans

PHONE

515-294-4983

EMAIL

dweeks@iastate.edu

AFFILIATIONS

InTrans

About Darla

Ms. Darla Weeks is responsible for all administrative operations at the Institute for Transportation. She supervises front-office student employees, sets up meetings, coordinates food for gatherings, and orders and stocks supplies. Ms. Weeks also coordinates travel, manages all parking permits and building access keys and fobs, and handles all mail and shipping for InTrans staff. 

Alireza Sassani

TITLE

Research Scientist, CTRE

PHONE

515-294-0105

EMAIL

asassani@iastate.edu

AFFILIATIONS

InTrans, CTRE

About Alireza

Dr. Alireza Sassani is a research scientist at the Institute for Transportation, contributing to various research associated with the Center for Transportation Research and Education. He has more than 14 years of experience in urban and transportation infrastructure engineering with a diverse research background that covers various aspects of infrastructure systems. His current research focuses on transportation asset management, intelligent transportation systems, and connected and automated vehicles. Dr. Sassani’s research aims to develop integrated infrastructure systems that support the vision of smart cities.

 

Education


  • PhD, Civil Engineering, Iowa State University, 2018
  • MS, Civil Engineering, Middle East Technical University, Turkey, 2014
  • BS, Civil Engineering, University of Guilan, Iran, 2009

Professional Experience


  • Research Scientist, Center for Transportation Research and Education, Institute for Transportation, Iowa State University, 2022–present
  • Postdoctoral Research Associate, Center for Transportation Research and Education, Institute for Transportation, Iowa State University, 2019–2022

Patents


  • Sassani, A., H. Ceylan, H. Abdualla, S. Kim, A. Arabzadeh, K. Gopalakrishnan, and P. C. Taylor. “Electrically Conductive Concrete Mixture Composition and System Design for Resistive Heating of Pavements with Low Volume Fractions of Carbon Microfiber,” Iowa State University Research Foundation (ISURF), US 2020/0262753 A1.
  • Arabzadeh, A., A. Sassani, H. Ceylan, and S. Kim. “Electrically-conductive asphalt concrete containing carbon fibers,” US 2021/0024418 A1.

Selected Publications


  • Fakhri, M., S. Javadi, A. Sassani, and M. Torabi-Dizaji. 2022. Zinc Slag as a Partial or Total Replacement for Mineral Filler in Warm Mix Asphalt and Its Effects on Self-Healing Capacity and Performance Characteristics. Materials, Vol. 15, No. 3, 736 pp.
  • Fakhri, M., S. Javadi, R. Sedghi, A. Sassani, A. Arabzadeh, and B. Baveli Bahmai. 2021. Microwave Induction Heating of Polymer-Modified Asphalt Materials for Self-Healing and Deicing. Sustainability, Vol. 13, No. 18.
  • Sassani, A., O. Smadi, and N. Hawkins. 2021. Developing Pavement Marking Management Systems: A Theoretical Model Framework Based on the Experiences of the US Transportation Agencies. Infrastructures, Vol. 6, No. 2, 18 pp.
  • Sassani, A., A. Arabzadeh, H. Ceylan, S. Kim, K. Gopalakrishnan, P. C. Taylor, and A. Nahvi. 2019. Polyurethane-Carbon Microfiber Composite Coating for Electrical Heating of Concrete Pavement Surfaces. Heliyon, Vol. 5, No. 8.
  • Arabzadeh, A., Notani, M., Kazemianzadeh, A., Nahvi, A., Sassani, A., and H. Ceylan. 2019. Electrically Conductive Asphalt Concrete: An Alternative for Automating the Winter Maintenance Operations of Transportation Infrastructure. Journal of Composites Part B: Engineering, Vol. 173.
  • Arabzadeh, A., A. Sassani, H. Ceylan, S. Kim, K. Gopalakrishnan, and P. C. Taylor. 2019. Comparison between cement paste and asphalt mastic modified by carbonaceous materials: Electrical and thermal properties. Construction and Building Materials, Vol. 213, pp. 121–130.
  • Nahvi, A., M. Sadoughi, A. Arabzadeh, A. Sassani, S. Kim, H. Ceylan, and C. Hu. 2019. Multi-objective Bayesian Optimization of Superhydrophobic Coatings on Asphalt Concrete Surfaces. Journal of Computational Design and Engineering, Vol. 6, No. 4, pp. 693–704
  • Malakooti, A., H. Abdualla, A. Sassani, H. Ceylan, and S. Kim, S. 2019. Effect of Electrode Geometry and Size on Heating Performance if Electrically Conductive Concrete. Proc., 2019 Transportation Research Board (TRB) Annual Conference, Washington, DC.

Roy Sturgill

TITLE

Construction Engineer, CMAT

PHONE

515-294-3933

EMAIL

sturgill@iastate.edu

ADDITIONAL ROLES

Assistant Professor, Department of Civil, Construction and Environmental Engineering

AFFILIATIONS

InTrans, CMAT

About Roy

Dr. Roy Sturgill is an accomplished researcher and has served as principal investigator or co-investigator on over a dozen research projects totaling over $1.5M (inclusive of both state and national funding). Before coming to Iowa State University, he worked as a research engineer at the Kentucky Transportation Center at the University of Kentucky in their Construction Engineering and Project Management Program and as an engineer with the Kentucky Transportation Cabinet, working in construction management and highway design conducting constructability reviews.

Dr. Sturgill is a member of the Transportation Research Board’s Standing Committee on Construction Management, friend to the Information Systems in Construction Management Sub-committee, friend to the Standing Committee on Project Delivery Methods, and Committee Research Chair of the Standing Committee on Utilities. He is a licensed professional engineer in both Kentucky and Iowa and has held previous sustainability-related credentials (LEED GA and GreenRoads STP).

Education


  • University of Kentucky– Lexington, Kentucky
    • PhD, Civil Engineering, 2018
    • MA, Business Administration, 2003
    • BS, Civil Engineering (Minor: Mathematics), 2003
    • Graduate Certificates: Applied Statistics
  • Virginia Polytechnic Institute and State University
    • MS, Civil Engineering – Construction Engineering and Project Management, 2004
    • Graduate Certificates: Engineering Education, Preparing the Future Professoriate

Certifications


  • Professional Engineering (PE) License, State of Iowa (No. P25629) (Active)
  • Professional Engineering (PE) License, State of Kentucky (No. 26119) (Active)
  • Leadership in Energy and Environmental Design Green Associate (LEED-GA), 2009 (Inactive)
  • Greenroads Sustainable Transportation Professional, STPα, among the initial 25 credentialed, 2012 (Inactive)

Professional Experience


  • Assistant Professor, Department of Civil, Construction and Environmental Engineering, Iowa State University, 2019–present
  • Research Engineer, Kentucky Transportation Center, University of Kentucky, 2012–2019
  • Adjunct Instructor, Department of Civil Engineering, University of Kentucky, 2013–2013
  • Adjunct Instructor, Civil Engineering Technology Program, Bluegrass Community and Technical College, 2012–2014
  • Engineer, Division of Highway Design, Kentucky Transportation Cabinet, 2012–2013
  • Engineer, Division of Construction, Kentucky Transportation Cabinet, 2007–2012

Selected Publications


  • Al-Bayati, A., R. Sturgill, L. Panzer, Montes Victorio, S., and Omer, T. 2022. Locating underground utilities in the United States: A comparative analysis of services provided by private locators. Transportation Research Interdisciplinary Perspectives, Vol. 16.
  • Tripathi, A., D. Patel, R. Sturgill, and G. Dadi. 2022. An Analysis of e-Ticketing Technology for Inspection Performance and Practicality on Asphalt Paving Operations. Transportation Research Record: Journal of the Transportation Research Board, Vol. 2676, No. 8.
  • Li, Y., S. Al-Haddad, T. Taylor, P. Goodrum, and R. Sturgill. 2019. Impact of Utilizing Construction Engineering and Inspection Consultants on Highway Construction Project Cost and Schedule Performance. Transportation Research Record: Journal of the Transportation Research Board, Vol. 2673, No. 11, pp. 716–725.
  • Al-Shabbani, Z., R. Sturgill, and G. Dadi. 2018. Developing a Pre-Task Safety Briefing Tool for Kentucky Maintenance Personnel. Transportation Research Record: Journal of the Transportation Research Board, Vol. 2672, No. 12, pp. 187–197.
  • Li, Y., T. Taylor, G. Dadi, and R. Sturgill. 2017. Modeling Long-Term Highway Staffing Requirements for State Transportation Agencies. Transportation Research Record: Journal of the Transportation Research Board, Vol. 2612, No. 1, pp. 76–84.

Professional Affiliations, Honors, and Service


  • Transportation Research Board:
    • Committee Research Chair, Standing Committee on Utilities (AFB 70), 2020–present
    • Member, Standing Committee on Construction Management (AFH 10), 2013–present
    • Friend, Information Technology in Construction Subcommittee (AFH 10(1)), 2013–present
    • Friend, Standing Committee on Project Delivery Methods (AFH 15), 2016–present
  • Member, American Society of Civil Engineers, UESI Utility Coordination Committee, 2018–present
  • Member, American Association of State Highway Transportation Officials (AASHTO) Technical Subcommittees (Utility Mapping, GIS & SUE; Utility Project Scoping & Coordination; Utility Accommodation & Safety), 2017–present

Guillermo Basulto-Elias

TITLE

Research Scientist, CTRE

PHONE

515-294-8103

EMAIL

basulto@iastate.edu

AFFILIATIONS

InTrans, CTRE, REACTOR

About Guillermo

Dr. Guillermo Basulto-Elias is a research scientist at the Institute for Transportation at Iowa State University. He has experience in statistical computing, data visualization, generalized linear mixed effects models, nonparametric statistics, machine learning, and stochastic processes.

In recent years, he has worked on nonparametric models of data with measurement error and forensic statistics, which include footwear analysis, models for speaker recognition, and design and supervision of shoe prints forensic database. More recently, he has worked on software development for generating reports of crashes, and statistical models for traffic data, including linear mixed effects models, hierarchical Bayesian models, and functional data analysis.

Education


  • PhD, Statistics, Iowa State University, Ames, IA, 2016
  • MS, Probability and Statistics, Center for Research in Mathematics (CIMAT), University of Guanajuato, Guanajuato, Mexico, 2011
  • BS, Mathematics, University of Guanajuato, Guanajuato, Mexico, 2009

Professional Experience


  • Research Scientist, Institute for Transportation, Iowa State University, Ames, IA, 2019–present
  • Postdoctoral appointment, Institute for Transportation, Iowa State University, Ames, IA, 2019–2019
  • Postdoctoral appointment, Center for Statistics and Applications in Forensic Evidence, Iowa State University, Ames, IA, 2016–2018
  • Graduate Assistant, Iowa State University, Ames, IA, 2011–2016

Selected Publications


  • Hallmark, S., G. Basulto-Elias, and J. Shaw. 2021. Systematic Reviews: Roadside Barriers. The World Bank, Washington, DC.
  • Hallmark, S., G. Basulto-Elias, N. Oneyear, O. Smadi, S. Chrysler, and G. Ullman. 2021. Evaluation of Work Zone Safety Using the SHRP2 Naturalistic Driving Study Data–Volume 1 Toolbox of Work Zone Countermeasures. Minnesota Department of Transportation, St. Paul, MN.
  • Basulto-Elias, G., A. Carriquiry, K. De Brabanter, and D. Nordman. 2020. Bivariate kernel deconvolution with panel data. Sankhya B: The Indian Journal of Statistics.
  • Goswamy, A., S. Hallmark, G. Basulto-Elias, and M. Pawlovich. 2019. Safety Evaluation of Stop-Sign Mounted Beacons—A Cross-Sectional Study. Journal of Transportation Technologies, Vol. 9, No. 1.
  • Basulto-Elias, G., A. Carriquiry, K. De Brabanter, and D. Nordman. 2017. “fourierin”: An R package to compute Fourier integrals. The R Journal, Vol. 9, No. 2.

Professional Affiliations, Honors, and Awards


  • President, American Statistical Association, Iowa Chapter, IA, 2019–2020
  • Member of winning team of the 2014 Data Mining Cup organized by Prudsys AG, 2014
  • Second runner-up of Sotero Prieto Award to the best undergraduate thesis in Mathematics of Mexico, given by the Mexican Mathematical Society, 2010
  • Third place by Francisco Aranda Award to the best undergraduate thesis in Statistics of Mexico, given by the Mexican Statistics Association, 2010

Oksana Gieseman

TITLE

Communications Manager, InTrans

PHONE

515-294-8745

EMAIL

oksana@iastate.edu

AFFILIATIONS

InTrans

About Oksana

Ms. Oksana Gieseman is the communications manager with the Institute for Transportation. She is responsible for the management of InTrans communications efforts that include technical writing, editing, marketing, and public relations services.

Ms. Gieseman joined InTrans in October 2018. She brought over 15 years of experience in communications, marketing, and management.

Education


  • M.A., Rhetoric, Composition, and Professional Communication, Iowa State University, 2006
  • B.S. (with Honors Distinction), Technical Communication with concentrated study in Computer Science, Iowa State University, 2003

Professional Experience


  • Communications Manager, Grants Hub, Iowa State University: July 2017–October 2018
  • Director of Operations, AgSolver, Inc.: August 2013–July 2017
  • Director of Publications/Editor of the Journal of Soil and Water Conservation, Soil and Water Conservation Society: January 2009–August 2013
  • Communications Specialist, Center for Transportation Research and Education (CTRE), Iowa State University: September 2005–January 2009
  • Technical Editor, Center for Transportation Research and Education, Iowa State University: January 2004–September 2005

John Adam

TITLE

Associate Director, CP Tech Center

PHONE

515-294-7323

EMAIL

jfadam@iastate.edu

AFFILIATIONS

InTrans, CP Tech Center

About John

Mr. John Adam is currently serving as an associate director for the National Concrete Pavement Technology Center, managing multifaceted, multiyear research projects from inception through submission of the final deliverables. He provides technical assistance, training to professionals, and presentations to key stakeholders to support advancements in concrete pavement design, construction, and maintenance. Mr. Adam has worked for the Iowa Department of Transportation (DOT) as well as several firms in private industry during his engineering career.

Mr. Adam is a 1980 graduate of Iowa State University, with a bachelor’s degree in construction engineering, and is licensed in Iowa as a civil engineer. He was highway division director and chief engineer for the Iowa DOT for six years, after earlier serving as the DOT statewide operations bureau director. Following that, he spent several years as senior vice president at Knight Engineering. In addition, he has been a member of the American Association of State Highway and Transportation Officials (AASHTO) Subcommittee on Highway Traffic Safety, AASHTO Standing Committee on Highways, and numerous other AASHTO subcommittees throughout his career.

Mr. Adam brings more than 30 years of experience in the design and delivery of transportation improvement projects. He has often collaborated with project stakeholders and the community to develop the right solutions for transportation challenges.

Education


  • BS, Construction Engineering, Iowa State University, 1980

Certifications


  • Professional Engineer (PE) License, State of Iowa (No. 10644)

Professional Experience


  • Associate Director, National Concrete Pavement Technology Center, Ames, IA, 2021–present
  • Lab Director/Project Manager, National Concrete Pavement Technology Center, Ames, IA, 2018–2021
  • Vice President, Knight E/A Inc., 2016–2018
  • Chief Engineer/Highway Division Director, Iowa Department of Transportation 2010–2016
  • Statewide Operations Bureau Director, Iowa Department of Transportation, 2002–2009
  • Materials Engineer/Assistant Materials Engineer, Iowa Department of Transportation, 1998–2002
  • District 1 Materials Engineer, Iowa Department of Transportation 1996–1998
  • Asphalt Field Construction Engineer, Iowa Department of Transportation, 1990–1996
  • Various Materials and Contracts Positions, Iowa Department of Transportation, 1983–1990
  • Structural Steel Fabrication/Construction—Various Positions, PDM Corp., 1980–1983

Professional Accomplishments/Highlights


  • Provided leadership and guidance in establishment of QA/QC programs for asphalt contractors and for aggregate producers in Iowa
  • Involved in specifications development and implementation of QA/QC for concrete paving contractors in Iowa
  • Facilitated coordination and management of transportation-related research activities with various research partners and entities
  • Oversight of winter maintenance program, focusing on proactive management of snow and ice control, innovation (AVL/GPS, public facing dashboard cameras), and performance measures
  • Facilitated development and implementation of electronic construction project administration, including an electronic material delivery ticket process approved by the Federal Highway Administration (FHWA)
  • Supported development and implementation of electronic design processes allowing for full “paperless processes” from survey through design, letting, construction, and project close-out
  • Successful management of the recovery efforts on the Interstate Highway System in western Iowa damaged by the historic 2011 Missouri River flood

Selected Presentations


  • Adam, J. 2022. National Concrete Pavement Technology Center Update. Presented at National Concrete Consortium, September 27, Detroit, MI. Audience: approx. 175.
  • Adam, J. 2022. Concrete Pavement Sustainability. Presented at MoAGC/MoDot (Missouri Association of General Contractors/Missouri DOT) Conference, December 8, Osage Beach MO. Audience: approx. 200.

Professional Affiliations


  • FHWA Every Day Counts 6 (EDC 6) Targeted Overlays for Pavement Solutions (TOPS) Technical Working Group, 2020–present
  • American Concrete Paving Association (ACPA) – Quality Construction Committee, 2020–present
  • TRB Design & Rehabilitation of Concrete Pavements Comm. (AKP 20) – “Friend,” 2020–present
  • TRB Pavement Preservation Comm. (AKT 20) – “Friend,” 2020–present
  • Co-Chair of NCHRP Project 20-68A, Scan 13-02, “Advances in Civil Integrated Management,” April 2015
  • TRB SHRP2 Safety Data Oversight Committee, 2014–2019
  • TRB Committee on Long-term Stewardship of SHRP2 Safety Data, 2013–2014
  • Iowa State University Construction Engineering Industry Advisory Council, 2001–2014
  • Concrete Paving Technology Center Advisory Council, 2000–2010
  • National Concrete Pavement Technology Center Board Member, 2010–2016
  • Iowa Department of Transportation Specifications Committee, 2000–2010
  • Iowa Highway Research Board, 1990–2010
  • AASHTO Standing Committee on Highways, 2010–2016
  • AASHTO Subcommittee on Operations and Management (past member)
  • AASHTO Subcommittee on Materials (past member)
  • AASHTO Subcommittee on Performance Measures (past member)
  • AASHTO Standing Committee on Highway Traffic Safety (past member)

Zhengyu Liu

TITLE

Research Engineer, BEC

PHONE

515-294-4268

EMAIL

zhengyu@iastate.edu

AFFILIATIONS

InTrans, BEC

About Zhengyu

Dr. Zhengyu Liu is a research engineer for the Bridge Engineering Center (BEC) and the Timber Bridge Program. He provides analytical expertise and project oversight for BEC projects. Dr. Liu has been involved in the conduct of bridge-related research for over eight years.

Dr. Liu received his master’s degree in civil engineering in 2014 and doctorate in structural engineering in 2018 from Iowa State University. Following the completion of his PhD, he continued his work at the Bridge Engineering Center as a research engineer. In total, he has contributed to more than 20 bridge-related research projects for numerous federal, state, and local agencies. His current research is in the general area of bridge engineering with specific interest in accelerated bridge construction (ABC), precast bridge element design and connection detailing, time-dependent bridge superstructure behavior, structural health monitoring and load rating, and highly nonlinear bridge structure simulation, etc. He is an author/co-author of more than 20 bridge structure related research reports and peer-reviewed journal articles.

Education


  • PhD, Civil Engineering, Iowa State University, 2018
  • MS, Civil Engineering, Iowa State University, 2014
  • BS, Civil Engineering, Shenyang University of Technology, China, 2012

Certifications


  • Professional Engineer (PE) License, State of Iowa (No. P25328)

Professional Experience


  • Research Engineer, Bridge Engineering Center, Institute for Transportation, Iowa State University, Ames, IA, 2018–present
  • Graduate Research Assistant, Department of Civil, Construction and Environmental Engineering, Iowa State University, Ames, IA, 2013–2018

Selected Publications


  • Liu, Z., and B. M. Phares. 2023. Field Demonstration of an Innovative Box Beam Connection. Journal of Bridge Engineering, Vol. 28, No. 1.
  • Liu, Z., J. Dahlberg, and B. M. Phares. 2023. Field Demonstration of an Innovative Box Beam Connection, IHRB Project 18-647. Iowa Department of Transportation, Ames, IA.
  • Phares, B. M., K. S. Freeseman, Z. Liu, and S. Mousavi. 2023. Advancing Bridge Load Rating: Best Practices and Model Frameworks. Federal Highway Administration, Washington, DC.
  • Liu, Z., B. M. Phares, Z. Dietrich, and B. Shafei. 2022. Structural behavior of large anchor bolts used for sign-support structures. Journal of Constructional Steel Research, Vol. 190.
  • Liu, Z., A. Semendary, and B. M. Phares. 2022. Numerical Investigation on Early Age Performance of UHPC Shear Keys between an Adjacent Prestressed Concrete Box Beams. Advances in Structural Engineering.
  • Freeseman, K. S., Z. Liu, B. M. Phares, and S. Mousavi. 2021. Experimental Validation of a Rapid Assessment Tool for Pile Capacity and Stability in Response to Scour Situations. Institute for Transportation, Iowa State University, Ames, IA.
  • Liu, Z., K. S. Freeseman, J. M. Dahlberg, B. M. Phares, and M. LaViolette. 2021. Lateral Slide of Multi-Span Bridges: Investigation of Connections and Other Details–Phase I. Institute for Transportation, Iowa State University, Ames, IA.
  • Freeseman, K. S., Z. Liu, and B. M. Phares. 2021. Implementation of the Negative Moment Reinforcing Detail Recommendations.” Iowa Highway Research Board, Iowa Department of Transportation, Ames, IA.
  • Freeseman, K. S., Z. Liu, and T. B. Sanderson. 2021. Exploration of Ultrasound for the Evaluation and Preservation of Structures. Iowa Highway Research Board, Iowa Department of Transportation, Ames, IA.
  • Sanderson, T. B., Z. Liu, and K. S. Freeseman. 2021. Exploration of Ultrasound for the Evaluation and Preservation of Structures. Case Studies in Construction Materials, Elsevier.
  • Liu, Z., and A. Semendary. 2021. Numerical Investigation on Early Age Performance of UHPC Shear Keys between an Adjacent Prestressed Concrete Box Beams. Advances in Structural Engineering.
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