Reports

  1. Habbouche, J., I. Boz, S. Diefenderfer, B.S. Underwood, and O. Othman (2024). “Mechanistic-Based Evaluation of Performance Thresholds for Balanced Mix Design Asphalt Surface Mixtures,” Final Report FHWA/VTRC 25-TBD.
  2. Underwood, B.S., Y.R. Kim, M.N. Guddati, and Z. Zeng (2024). “Asphalt Pavement Reflective Cracking Model to Better Address Rehabilitation: Phase I Report,” Final Report FHWA-HRT-TBD. Federal Highway Administration.
  3. Habbouche, J., I. Boz, B.S. Underwood, C. Castorena, J. Preciado, S. Gulzar, and A. Fried (2023). “Engineered Frameworks for Evaluating the Use of Recycling Agents in Surface Asphalt Mixtures for Virginia,” Final Report FHWA/VTRC 24-R3.
  4. Underwood, B.S., C. Castorena, Y.R. Kim, K. Kuchiishi, N. Tran, and A. Taylor (2023). “Ruggedness and Interlaboratory Studies for Asphalt Mixture Performance Tester (AMPT) Small Scale Dynamic Modulus: Phase II Report.” Final Report FHWA-HRT-TBD. Federal Highway Administration.
  5. Underwood, B.S., C. Castorena, B. Goenaga, B. Munywoki, and P. Rogers (2023). “Development of Friction and Texture Performance Models.” Final Report FHWA/NC/2022-05. North Carolina Department of Transportation.
  6. Underwood, B.S., B. Montoya, N. Matini, C. O’Toole, and S. Andanje (2023). “Improving Resilience of Transportation Infrastructure to Hurricane Damage.” Final Report FHWA/NC/2021-08. North Carolina Department of Transportation.
  7. Underwood, B.S., C. Castorena, Y.R. Kim, K. Kuchiishi, N. Tran, and A. Taylor (2023). “Ruggedness and Interlaboratory Studies for Asphalt Mixture Performance Tester (AMPT) Small Scale Dynamic Modulus: Phase II Report.” Final Report FHWA-HRT-TBD. Federal Highway Administration.
  8. Castorena, C., B.S. Underwood, Y.R. Kim, D. Mocelin, M. Isied, M.C.A. Alvis, and A. Kusam (2023). “Modifying Existing Asphalt Mix Design Procedures for RAP/RAS Surface Mixtures,” Final Report FHWA/NC/2021-06. North Carolina Department of Transportation.
  9. Underwood, B.S., Y.R. Kim, M.N. Guddati, F. Pivetta, N.F. Saleh, and S. Rao (2023). “Seasonal Effects due to Moisture Variation and Investigation of Cyclic Fatigue Temperature and End Failure on Pavement Performance: FlexPAVE™ User Guide.” User Guide FHWA-HRT-TBD. Federal Highway Administration.
  10. Underwood, B.S., Y.R. Kim, M.N. Guddati, K. Kuchiishi, K. Lee, and S. Rao (2022). “Seasonal Effects due to Moisture Variation and Investigation of Cyclic Fatigue Temperature and End Failure on Pavement Performance.” Final Report FHWA-HRT-TBD. Federal Highway Administration.
  11. Underwood, B.S., C. Castorena, Y.R. Kim, K. Kuchiishi, N. Tran, and A. Taylor (2022). “Ruggedness and Interlaboratory Studies for Asphalt Mixture Performance Tester (AMPT) Small Scale Dynamic Modulus: Phase I Report.” Final Report FHWA-HRT-TBD. Federal Highway Administration.
  12. Castorena, C., B.S. Underwood, Y.R. Kim, K.  Lee, N. Tran, and A. Taylor (2023). “Ruggedness and Interlaboratory Studies for Asphalt Mixture Performance Tester (AMPT) Cyclic Fatigue Test: Phase II Report,” Report FHWA-HRT-TBD, Federal Highway Administration, Washington, D.C.
  13. Underwood, B.S., M.N. Guddati, and Samu (2022). “Evaluation of Inverted Pavement for NC Roadways.” Final Report FHWA/NC/2020-17. North Carolina Department of Transportation.
  14. Underwood, B.S. (2022). “Pavement Performance Impacts Predicted by Climate Change Models in Arizona.” Final Report. Arizona Department of Transportation.
  15. Olmsted, S., K. Gade, B.S. Underwood, A. O’Connor, D. Leistiko, Z. Schmidt (2022). “Federal Aid Project No. 080-A(212)T: San Pedro River Bridge Structure No. 609.” Project 080 CH 298 H8937 OIC. Arizona Department of Transportation.
  16. Underwood, B.S., C. Castorena, N. Matini, M. Isied, B. Goenaga, K. Kuchiishi (2021). “Calibration of Structural Layer Coefficients for North Carolina Asphalt Pavements.” Final Report FHWA/NC/2019-20. North Carolina Department of Transportation.
  17. Underwood, B.S., C. Castorena, and B. Goenaga (2021). “Evolution of Pavement Friction and Macrotexture after Asphalt Overlay.” Final Report FHWA/NC/2020-11. North Carolina Department of Transportation.
  18. Underwood, B.S. and D. Karanam (2021). “Determining Structural Number for FORTA-FI in North Carolina.” Final Report. FORTA Corporation.
  19. Underwood, B.S. and D. Karanam (2021). “Evaluation of Pave-AID Modified Asphalt Mixtures.” Final Report. FORTA Corporation.
  20. Underwood, B.S., C. Castorena, and M. Isied (2021). “Evaluation of New Asphalt Concrete Job Mix Formula Specifications.” Final Report FHWA/NC/2020-12. North Carolina Department of Transportation.
  21. Castorena, C., B.S. Underwood, Y.R. Kim, K. Lee, N. Tran, and A. Taylor (2020). “Ruggedness and Interlaboratory Studies for Asphalt Mixture Performance Tester (AMPT) Cyclic Fatigue Test: Phase I Report,” Report FHWA-HRT-21-057, Federal Highway Administration, Washington, D.C.
  22. Underwood, B.S. and J. Ding (2020). “Development of Testing Strategies for Wet Batch Material.” Final Report. Corning Incorporated.
  23. Underwood, B.S., H. Tirkolaei, N. Neithalath, B. Goenaga, and E. Ponce (2020). “Safety of Earthen Stormwater Infiltration Best Management Practices (BMP’s) Adjacent to Highways.” Final Report CA20-2896. California Department of Transportation.
  24. Underwood, B.S. and Z. Zeng (2019). “Evaluation of Automatic Drying Unit for Troxler Labs.” Final Report. Troxler Electronics Laboratory, RTP, NC.
  25. Kaloush, K.E., B.S. Underwood, Gundla, and R. Salim (2019). “Evaluation of MSCR Testing for Adoption in ADOT Asphalt Binder Specifications.” Final Report, Arizona Department of Transportation, Phoenix, AZ.
  26. Kaloush, K.E., Underwood, B.S., H. Noorvand, J. Stempihar (2018). “Advancing FORTA Fiber Technology-Engineered Fiber Blends.” Final Report, FORTA Corportation.
  27. Underwood, B.S., M. Chester, and P. Gudipudi (2018). “Economic Impacts from Challenges in Pavement Engineering in an Uncertain Climate Future.” Final Report. National University Transportation Center, University of Maryland.
  28. Underwood, B.S., S. Nagarajan, and P. Gudipudi (2018). “Evaluation of Infrastructure Impacts from Freight Movements near Seaports.” Final Report. National University Transportation Center, University of Maryland.
  29. Vinayakamurthy, M. M. Mamlouk, B.S. Underwood, and K. Kaloush (2017). “Effect of Pavement Condition on Accident Rate.” Final Report. National University Transportation Center, University of Maryland.
  30. Underwood, B.S., N. Neithalath, P, Gudipudi and Pu Yang (2017). “Analysis and Optimization of Trench Geometry for Fiber Optic Cable Installations.” Final Report, Google Fiber.
  31. El Asmar, B.S. Underwood, K. Kaloush, N. Cho (2017). “Impact of the Design-Build Project Delivery System on the Long-Term Performance of Transportation Projects.” Final Report. National University Transportation Center, University of Maryland.
  32. Underwood, B.S. and H. Noorvand (2017). “Evaluation of Novel Monahan Filament Fibers for use in Asphalt Concrete.” Final Report, Monahan Filaments.
  33. Sakhaeifar, M.S., D. Newcomb, M. Nobahkt, B.S. Underwood, P. Gudipudi, J. Stempihar (2015). “Selection of Long Lasting Rehabilitation Treatment using Life Cycle Cost Analysis and Present Serviceability Rating,” Final Report, Oklahoma Department of Transportation.
  34. Underwood, B.S., K.E. Kaloush, J. Stempihar, and J. Medina. (2015). “Evaluation of Alternative Fiber Blends.” Final Report, FORTA Corporation.
  35. Underwood, B.S., K.E. Kaloush, J. Stempihar, and R. Salim. (2015). “Evaluation of the Mechanical Properties of Alternative Fiber Blends.” Final Report, FORTA Corporation.
  36. Underwood, B.S. and S. Nagarajan (2015). “Impact of Freight Movement Trends on Highway Pavement Infrastructure.” Final Report. National University Transportation Center, University of Maryland.
  37. Underwood, B.S., Kaloush, K.E., W. Zeiada, J. Medina, P. Gudipudi, B. Kannapan, and O. Elbagalati. (2014). “Optimization of Fiber Blending and Testing Parameters for Poly-Aramid Blends.” Final Report, FORTA Corporation.
  38. Kaloush, K.E., G. Way, B.S. Underwood, J. Medina (2013). “Binder Properties of RuBind Crumb Rubber Modified Binders.” Final Report, Department of Roads, State of Rio de Janeiro, Brazil.
  39. Roque, R., J. Zou, Y.R. Kim, C.M. Baek, S. Thirunavukkarasu, B.S. Underwood, and M.N. Guddati. (2010). “NCHRP 1-42A: Top-Down Cracking of Hot Mix Asphalt Layers: Models for Initiation and Propagation, Final Report.” National Cooperative Highway Program. Washington, D.C.
  40. Kim, Y.R., B.S. Underwood, M.S. Sakhaei Far, N. Jackson, J. Puccinelli. (2009). “LTPP Computed Parameter: Dynamic Modulus, Final Report.” Project No. DTFH61-02-D-00139, Federal Highway Administration, Washington, D.C.
  41. Kim, Y.R., J.E. Hummer, M. Gabr, D. Johnston, B.S. Underwood, D.J. Findley, and C.M. Cunningham. (2009). Asset Management Inventory and Data Collection.” North Carolina Department of Transportation. Raleigh, N.C.
  42. Kim, Y.R., M.N. Guddati, B.S. Underwood, T.Y. Yun, V. Subramanian, S. Savadatti and S. Thirunavukkarasu. (2008). “Development of a Multiaxial VEPCD-FEP++.” Final Report FHWA-HRT-08-073. Federal Highway Administration.
  43. Kim, Y.R., M.N. Guddati, B.S. Underwood, T.Y. Yun, V. Subramanian, and A.H. Heidari (2005). “Characterization of ALF Mixtures Using the Viscoelastoplastic Continuum Damage Model: Final Report.” Project No. DTFH61-03-H-00116, Federal Highway Administration, Washington, DC.