Projects | Virginia Transportation Research Council

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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

Investigators: A. Kazuo Kuchiishi, Ph.D.

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Implementation of Multimodal Innovations: Crosswalk Lighting, Rectangular Rapid Flashing Beacons (RRFB), LED-embedded Advance Warning Signs, and Passive Automated Detection

Investigators: Lance E. Dougald, Peter B. Ohlms, AICP

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Experimental Approaches for Integrating External Factors into Pathway for Planning (P4P) Traffic Volume Forecasting

Investigators: Yiqing Xu, Ph.D.

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Developing a Transportation Demand Management Tool for DRPT to Understand the Factors Affecting Transit Ridership

Investigators: Md Sami Hasnine, Peter B. Ohlms, AICP

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Field Performance of High RAP Mixtures

Investigators: Stacey D. Diefenderfer, Ph.D., P.E.

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Analysis of 2018-2024 Network Level Pavement Structural Testing with the TSD

Investigators: Samer Katicha, Gerardo Flintsch, Brian K. Diefenderfer, Ph.D., P.E.

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Updating VDOT’s Concrete Permeability Requirements

Investigators: Amir Behravan, Ph.D., P.E., Gabriel Arce, Ph.D., P.E., H. Celik Ozyildirim, Ph.D., P.E.

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Evaluation of Thick Lift Asphalt Paving

Investigators: Gerardo Flintsch, Ph.D. (Virginia Tech Transportation Institute), A. Kazuo Kuchiishi, Ph.D., Brian K. Diefenderfer, Ph.D., P.E.

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Evaluation of Commercially Available Corrosion Resistant Metal Reinforcement

Investigators: James S. Gillespie, Stephen R. Sharp, Ph.D., P.E.

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Last updated: June 15, 2026