
Current Projects
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Test Methods for Joint Fabrics Used in Precast Concrete Adjacent Member Beam Connections
128245
February 28, 2027
Investigators: Bernard L. Kassner, Ph.D., P.E.
Overlays with Rapid Setting Cement and a Liquid Low P Admixture
128209
June 30, 2028
Investigators: H. Celik Ozyildirim, Ph.D., P.E., Mary Sharifi
Ultra-High Performance Concrete Overlays in Virginia
128208
June 30, 2028
Investigators: H. Celik Ozyildirim, Ph.D., P.E., Mary Sharifi
Patch Mixtures for Bridge Structures and Pavements
128207
August 31, 2026
Investigators: H. Celik Ozyildirim, Ph.D., P.E., Mary Sharifi, M. Shabbir Hossain, Ph.D., P.E.
Evaluation of Alternative Materials for Timber Bridge Deck Plank Replacement
128200
January 31, 2028
Investigators: Osman Osbulut, Bernard L. Kassner, Ph.D., P.E., Jason T. Provines, P.E.
Identifying Opportunities to Improve Temporary Sediment Basins
128164
March 31, 2027
Investigators: Lewis N. Lloyd, P.E., Maria Rossetti, Ph.D.
Experimental Approaches for Integrating External Factors into Pathway for Planning (P4P) Traffic Volume Forecasting
126947
March 31, 2027
Investigators: Yiqing Xu, Ph.D.
Resilience Program: Preliminary Investigation of Bridge Scour Countermeasure and Mitigation Strategies in Virginia
124060-RC00175
April 30, 2026
Investigators: Amir Behravan, Ph.D., P.E., Edward J. Hoppe, Ph.D., P.E.
Evaluation of Moisture Susceptibility of Full-Depth Reclamation (FDR) Mixes
124060-RC00181
October 31, 2026
Investigators: Benjamin Bowers, Ph.D., Auburn University, Brian K. Diefenderfer, Ph.D., P.E., Ilker Boz, Ph.D., P.E.
Resiliency Assessment of Flood Damage in Pavements
124060-RC00191
December 31, 2028
Investigators: Benjamin Bowers, Auburn University, Don Guy, Auburn University, Harikrishnan Nair, Ph.D., P.E., M. Shabbir Hossain, Ph.D., P.E.
Analysis of 2018-2024 Network Level Pavement Structural Testing with the TSD
126825
September 30, 2026
Investigators: Samer Katicha, Gerardo Flintsch, Brian K. Diefenderfer, Ph.D., P.E.
Developing a Framework for Large Animal-Vehicle Crash Risk: A Safe System Approach to Cost-Effective Safety Improvements
126770
June 30, 2026
Investigators: Ian Hamilton, VHB, Bridget M. Donaldson
Evaluation of Thick Lift Asphalt Paving
126213
October 31, 2026
Investigators: Gerardo Flintsch, Ph.D., Virginia Tech Transportation Institute, Brian K. Diefenderfer, Ph.D., P.E., Kazuo Kuchiishi, Ph.D.
Effect of Bridge Deck Placement Sequences on Cracking Performance
126187
April 30, 2026
Investigators: Gabriel Arce, Ph.D., P.E., H. Celik Ozyildirim, Ph.D., P.E.
Evaluation of Commercially Available Corrosion Resistant Metal Reinforcement
126025
December 31, 2027
Investigators: James S. Gillespie, Stephen R. Sharp, Ph.D., P.E.
Advancing Forensic Investigation of Concrete Distresses at VTRC with Focus on Alkali-Ailica Reaction (ASR)
127904
September 30, 2027
Investigators: Nishant Garg (UIUC), Amir Behravan, Ph.D., P.E.
Local Calibration of AASHTOWare-ME Towards VDOT MEPDG Upgrade to Web-Based Version for New Pavement Design
127475
June 30, 2026
Investigators: Mesbah Ahmed, Elizabeth Turochy, Harikrishnan Nair, Ph.D., P.E.
Utilizing Big Data to Verify and Enhance Route Choice Models in Travel Demand Modeling
127473
March 31, 2027
Investigators: Shanjiang Zhu, George Mason University, Chenfeng Xiong, Villanova University, John S. Miller, Ph.D., P.E.
Use of Carbonate Aggregates in Pavement Preservation Treatments
127240
February 28, 2027
Investigators: Ilker Boz, Ph.D., P.E.
Improving Holiday Congestion Forecasting on Interstate Highways
127961
December 31, 2026
Investigators: Justice Appiah, Ph.D., P.E.
Evaluation of Polymer Concrete for Bridge Deck Overlay Applications in Virginia: Phase I
127908
December 31, 2026
Investigators: Gabriel Arce, Ph.D., P.E.
Concrete Removal Limits for the Rehabilitation of Bridge Piers
127907
June 30, 2028
Investigators: Devin Harris, Bernard L. Kassner, Ph.D., P.E.
Graphical Changeable Message Signs: Strategies, Impacts, and Best Practices
127691
July 31, 2027
Investigators: Yi-Ching Lee, George Mason University, Chien-Lun Lan, Ph.D.
Synthesis of VDOT Historic Bridge Survey, Review, and Management Information
127671
October 31, 2027
Investigators: Ann B. Miller
Field Performance Assessment of Chip Seals with Updated Chip Seal Specification and Fog Seal Treatment
127562
March 31, 2027
Investigators: Ilker Boz, Ph.D., P.E.
Evaluation of Cement Treated Aggregate (CTA) and Full-Depth Reclamation (FDR) In-Service Performance and Pavement Design Inputs
127472
July 31, 2026
Investigators: Brian K. Diefenderfer, Ph.D., P.E., M. Shabbir Hossain, Ph.D., P.E.
Reliability of Nondestructive Evaluation Methods for Bridge Decks
115560
May 31, 2024
Investigators: Amir Behravan, Ph.D., P.E.
Establishing Polishing Values of Aggregates for Use in Surface Asphalt Mixtures – Laboratory Evaluation
124839
October 31, 2026
Investigators: Ilker Boz, Ph.D., P.E., Kazuo Kuchiishi, Ph.D., M. Shabbir Hossain, Ph.D., P.E.
Verifying the Indirect Tensile at High Temperature (IDT-HT) Test Performance Criterion: A Multi-scale Investigation Integrating Laboratory, Full-Scale Accelerated Pavement Testing, and Field Evaluations
127210
September 30, 2026
Investigators: Kazuo Kuchiishi, Ph.D.
Long-Term Maintenance Needs and Costs of Green-Colored Pavement Markings and Flexible Post Delineators
126298
June 30, 2026
Investigators: T. Donna Chen, Janna Brown, Peter B. Ohlms, AICP
Evaluation of Spray-on Rejuvenators - Field Trials
124401
February 28, 2026
Investigators: Elizabeth Turochy, Ilker Boz, Ph.D., P.E.
Implementation of Multimodal Innovations: Crosswalk Lighting, Rectangular Rapid Flashing Beacons (RRFB), LED-embedded Advance Warning Signs, and Passive Automated Detection
127002
December 31, 2026
Investigators: Lance E. Dougald, Peter B. Ohlms, AICP
Developing a Transportation Demand Management Tool for DRPT to Understand the Factors Affecting Transit Ridership
126831
June 30, 2027
Investigators: Md Sami Hasnine, Peter B. Ohlms, AICP
Field Performance of High RAP Mixtures
126826
September 30, 2026
Investigators: Stacey D. Diefenderfer, Ph.D., P.E.
Updating VDOT’s Concrete Permeability Requirements
126728
June 30, 2027
Investigators: Amir Behravan, Ph.D., P.E., Gabriel Arce, Ph.D., P.E., H. Celik Ozyildirim, Ph.D., P.E.
Best Practices for Local Reviews of Industrial Developments
126697
August 31, 2026
Investigators: Jessica Nothstine, Lance E. Dougald
Emergency Management Strategies for Electric Vehicles
126331
October 31, 2025
Investigators: Noah J. Goodall, Ph.D., P.E.
Evaluating the Impact of Volumetric Properties and Reheating on the Balanced Mix Design Test Results
126581
March 31, 2026
Investigators: Ilker Boz, Ph.D., P.E., Kazuo Kuchiishi, Ph.D.
Estimation of the Benefits of Detour Trailblazing Signs on the I-81 Corridor in the Staunton Area
126328
April 30, 2026
Investigators: Chien-Lun Lan, Ph.D., Mo Zhao, Ph.D., P.E.
Evaluating the Potential Use of Electric Pickup Trucks in VDOT Using Field Test Data
126330
August 31, 2025
Investigators: Erin Robartes, Ph.D., Noah J. Goodall, Ph.D., P.E.
Development of an Evaluation and Acceptance Process for Traffic Count Devices
126329
May 31, 2026
Investigators: Chien-Lun Lan, Ph.D., Mo Zhao, Ph.D., P.E.
Developing Guidelines for Context Specific Crosswalk Design
124330
June 30, 2026
Investigators: T. Donna Chen, Afrida Raida, Erin Robartes, Ph.D.
A Follow Up Evaluation of the Concrete Pavements (US 58) Rehabilitated in 2012
126246
May 31, 2025
Investigators: H. Celik Ozyildirim, Ph.D., P.E., Harikrishnan Nair, Ph.D., P.E., M. Shabbir Hossain, Ph.D., P.E.
Exploration of Technical Developments and Data Sources that May Have Implications for Long-Range Transportation Planning in Virginia
126188
November 30, 2025
Investigators: Audrey K. Moruza, James S. Gillespie
Documentation of 2024 Balanced Mix Design Implementation
126084
September 30, 2025
Investigators: Bryan Smith, Candice Entwistle, Stacey D. Diefenderfer, Ph.D., P.E.
Reflective Crack Mitigation Strategies In Virginia - Performance Review
122357
June 30, 2025
Investigators: Harikrishnan Nair, Ph.D., P.E., M. Shabbir Hossain, Ph.D., P.E.
Phase II: Google Earth/Street Level Imagery for Rock Cut Slope Inventory and Rockfall Hazard Rating
125814
May 31, 2025
Investigators: Yonathan Admassu, James Madison University, M. Shabbir Hossain, Ph.D., P.E.
Incident Management in Complex Work Zones
126017
June 30, 2025
Investigators: Benjamin H. Cottrell, Jr., P.E.
Evaluating the Impact of Speed Safety Cameras in Interstate Work Zones
125976
June 30, 2026
Investigators: Benjamin H. Cottrell, Jr., P.E., Chien-Lun Lan, Ph.D., Erin Robartes, Ph.D.
Analyzing and Predicting Truck Travel Time Reliability
125968
April 30, 2026
Investigators: Justice Appiah, Ph.D., P.E., Mo Zhao, Ph.D., P.E.
Identifying Road Segments that Bisect Predicted Movement Corridors for Small Priority Species in Virginia
125843
June 30, 2026
Investigators: Thomas Akre, Ph.D, Grant Connette, Ph.D., David Luther, Ph.D., Bridget M. Donaldson
Use and Worker Perceptions of Wearable Lighted Apparel
125841
August 31, 2026
Investigators: Ronald Gibbons, Benjamin H. Cottrell, Jr., P.E.
Effect of Carbon-Negative Carbon Black on Concrete Properties
125840
July 31, 2026
Investigators: Sanjeev Kumar, Ramesh Govindarajan, Gabriel Arce, Ph.D., P.E.
Dissimilar Metal Welds Between ASTM A709 Grade 50CR and Other Bridge Steels
120151
October 31, 2025
Investigators: James Fitz-Gerald, Amir Behravan, Ph.D., P.E., Audrey K. Moruza, Jason T. Provines, P.E., Stephen R. Sharp, Ph.D., P.E.
Identifying and Quantifying Microplastics Generated from the Roadway Environment: Method Development and Preliminary Field Monitoring
125095
January 31, 2027
Investigators: James A. Smith, Nkosinobubelo Ndebele, Lewis N. Lloyd, P.E.
Evaluating the Feasibility and Benefit on Impervious Layer Inclusion Above Ground Water Table (GWT)
124060-RC00165
June 30, 2028
Investigators: Dr. Burak F. Tanyu, George Mason University
Pilot Application of Floodcast Technology in a District
124060-RC00161
October 31, 2024
Investigators: Lewis N. Lloyd, P.E.
Entire Interior Culvert Lining with Engineered Cementitious Composites
122144
January 31, 2026
Investigators: Mary Sharifi, Bernard L. Kassner, Ph.D., P.E., Gabriel Arce, Ph.D., P.E., H. Celik Ozyildirim, Ph.D., P.E.
Fiber Reinforced Concrete (FRC) Beam End Repairs for Corroded Steel Beam Ends
120661
May 31, 2025
Investigators: H. Celik Ozyildirim, Ph.D., P.E., Jason T. Provines, P.E., Stephen R. Sharp, Ph.D., P.E.
An Analysis of VDOT's Sight Distance Requirements Relative to Context-Sensitive Designs
124252
December 31, 2025
Investigators: T. Donna Chen, Lance E. Dougald
Evaluation of a Driver Alerting System for a Truck Mounted Attenuator
123952
April 30, 2025
Investigators: Ronald Gibbons, Benjamin H. Cottrell, Jr., P.E.
Addressing Fly Ash Shortage with Limestone Calcined Clay Cement
123872
March 31, 2026
Investigators: Lisa Colosi Peterson, Osman Ozbulut, Amir Behravan, Ph.D., P.E., Gabriel Arce, Ph.D., P.E.
The Effect of In-stream Construction Activities on Turbidity and Suspended Sediment
122843
December 31, 2025
Investigators: Bridget M. Donaldson, Lewis N. Lloyd, P.E.
Increasing Service Lives of Full Depth Reclamation Treatments
122696
May 31, 2025
Investigators: Gerardo Flintsch, Brian K. Diefenderfer, Ph.D., P.E., Harikrishnan Nair, Ph.D., P.E.
Sustainable Surface Mixtures Incorporating Recycled Plastic Waste and High RAP Contents
122604
October 31, 2025
Investigators: Lewis N. Lloyd, P.E., Stacey D. Diefenderfer, Ph.D., P.E.
Laboratory Characterization of Fiber-Reinforced Polymer Reinforcement Material Properties and Surface Treatment Behavior in Concrete
122602
December 31, 2024
Investigators: Amir Behravan, Ph.D., P.E., Bernard L. Kassner, Ph.D., P.E., Stephen R. Sharp, Ph.D., P.E.
Evaluation of Structural Adhesives as "Steel Grouting" in Steel Bridge Repairs
122191
January 31, 2025
Investigators: Jose Gomez, Osman Ozbulut, Jason T. Provines, P.E.
Field Evaluation of Lightweight Soundwall Panel Systems
124696
March 31, 2026
Investigators: Jason T. Provines, P.E., Stephen R. Sharp, Ph.D., P.E.
Analysis of the Poplar Creek Box Culverts
124654
May 31, 2026
Investigators: Eric Jacques, Alba Yerro-Colom, Ioannis Koutromanos, Edward J. Hoppe, Ph.D., P.E.
Developing a Balanced Mix Design (BMD) Framework for SBS Modified Dense-Graded Asphalt Surface Mixtures – Phase I
124333
July 31, 2026
Investigators: Ilker Boz, Ph.D., P.E., Stacey D. Diefenderfer, Ph.D., P.E.
Implementation of Structural Data from Traffic Speed Deflection Devices
124752
March 31, 2031
Investigators: Gerardo Flintsch, Ph.D., Brian K. Diefenderfer, Ph.D., P.E.
Data-Driven Decision-Making Framework for Inspection of Bridge Decks
118730
May 31, 2024
Investigators: Richard Weyers
Performance Assessment of Jointless Abutments in Virginia
115767
June 30, 2024
Investigators: Bernard L. Kassner, Ph.D., P.E., Edward J. Hoppe, Ph.D., P.E.
The Influence of Erosion Control Products on Vegetation Establishment
124532
October 31, 2025
Investigators: Bridget M. Donaldson, Maria Rossetti, Ph.D.
Business Impacts of Access Changes
124697
January 31, 2026
Investigators: James S. Gillespie
Improved Beam End Reinforcement Details for PCBTs with Debonded and/or Draped Strands
122311
December 31, 2026
Investigators: Carin Roberts-Wollmann, Bernard L. Kassner, Ph.D., P.E.
Modeling Travel Time Reliability for Non-Interstate National Highway System Routes
123124
June 30, 2025
Investigators: Chien-Lun Lan, Ph.D., Mo Zhao, Ph.D., P.E.
I-64 Recycled Pavement Monitoring
122323
May 31, 2025
Investigators: Gerardo Flintsch, Brian K. Diefenderfer, Ph.D., P.E., Ilker Boz, Ph.D., P.E.
Design Resilient Modulus for Coarse-Grained Subgrade Soils
122364
October 31, 2025
Investigators: Harikrishnan Nair, Ph.D., P.E., M. Shabbir Hossain, Ph.D., P.E.
Alkali-Silica Reaction (ASR) Mitigation in High Alkali Content Cements
122315
October 31, 2025
Investigators: Amir Behravan, Ph.D., P.E., Gabriel Arce, Ph.D., P.E., H. Celik Ozyildirim, Ph.D., P.E.
Design of Continuity Diaphragms Following New AASHTO Provisions
122312
December 31, 2026
Investigators: Carin Roberts-Wollmann, Ioannis Koutromanos, Bernard L. Kassner, Ph.D., P.E.
Calibration of Safety Performance Functions for Freeway Ramp Terminals in Virginia
119593
April 30, 2023
Investigators: Justice Appiah, Ph.D., P.E.
Improving Safety Service Patrol Performance
119789
October 31, 2023
Investigators: Mecit Cetin, Hong Yang, Sherif Ishak, Noah J. Goodall, Ph.D., P.E.
Development of Design Recommendations for Non-Contact, Hooked Bar Lap Splices for Large Reinforcing Bars
119918
May 31, 2025
Investigators: Carin Roberts-Wollmann, Eric Jacques, Bernard L. Kassner, Ph.D., P.E.
Pavement Structural Evaluation with Traffic Speed Deflection Devices (TSDDs) Pooled Fund Study TPF5-385
114421
October 31, 2023
Investigators: Gerardo Flintsch, Samir Katicha, Brian K. Diefenderfer, Ph.D., P.E.
The Effects of Surface Condition and Long-Term Environmental Exposure on the Bond Between Carbon Fiber-Reinforced Polymers and Steel
115768
February 28, 2024
Investigators: Matthew Hebdon, Audrey K. Moruza, Bernard L. Kassner, Ph.D., P.E.
Pavement Friction Management Program Implementation (Phase 3) - District-Level Deploymen
118900
April 30, 2024
Investigators: Edgar de Leon Izeppi, Gerardo Flintsch, Kevin B. Wright
Intersection Safety Performance Function Calibration Factors for Project Planning and Design
124329
November 30, 2025
Investigators: Justice Appiah, Ph.D., P.E.
Exploring the Use of Vehicle Miles Traveled (VMT) as an Evaluation Metric within Virginia’s Transportation Planning Process
124614
February 28, 2026
Investigators: Jonathan McKinney, Peter B. Ohlms, AICP
Resilience Approaches for Pavements and Geotechnical Assets
124157
November 30, 2030
Investigators: M. Shabbir Hossain, Ph.D., P.E.
FHWA Climate Challenge
124057
October 31, 2025
Investigators: Gerardo Flintsch, Eugene Amarh, Samer Katicha, Brian K. Diefenderfer, Ph.D., P.E., Harikrishnan Nair, Ph.D., P.E.
Ruggedness Study of Specimen Preparation and Fine-Tuning of Test Methods for IDT-CT and IDT-HT
124496
June 30, 2025
Investigators: Nathan Moore, Adam Taylor, Ilker Boz, Ph.D., P.E.
Field Validation of Balanced Mix Design Initial Criteria
124332
June 30, 2025
Investigators: Ilker Boz, Ph.D., P.E., Stacey D. Diefenderfer, Ph.D., P.E.
Limiting the Total Cementitious Materials Content in Concretes
124301
November 30, 2027
Investigators: H. Celik Ozyildirim, Ph.D., P.E., Mary Sharifi
Performance of Portland Limestone Cement and Supplementary Cementitious Materials in VDOT Concretes
124300
May 31, 2028
Investigators: H. Celik Ozyildirim, Ph.D., P.E., Mary Sharifi
Reducing Carbon Foot-Print in Concrete Applications
124299
June 30, 2028
Investigators: H. Celik Ozyildirim, Ph.D., P.E., Mary Sharifi
Halifax County Road Orders 1752-1767
124068
November 30, 2025
Investigators: Ann B. Miller
Electric Vehicles and Socioeconomic Inequality in Charging Stations on Virginia Roads
123127
March 31, 2025
Investigators: Dong K. Yoo, John S. Miller, Ph.D., P.E.
Last updated: May 6, 2024