Hi, I'm Wenyao Liu

• Capabilities of data management, data wrangling, modeling, visualization, and communication
• Programming* in R, Python, SQL, and Scala for normal and big data processing and analysis
• Statistical modeling and interpretations demonstrated in published journal papers
• Machine learning and spatial-temporal analysis being applied in my Ph.D. thesis.

• A big picture thinking in transportation engineering built on years of studying in civil engineering

• In-depth understanding of pavement performance models and specifications thanks to experience as a teaching assistant

• Proficiency in the laboratory evaluation of asphalt materials as proved by peer-reviewed publications

• Problem-solving with innovation and skills
• Leadership with adaptability to changing situations
• Collaborative working following time and task management
• Enthusiastic communication in person or public presentation

1. Utilizing Pavement Friction and Texture Data for The Reduction of Traffic Crashes and Delays (2018-2021)

   PI: Joshua Q. Li

   Sponsor: Oklahoma Department of Transportation

   • Analyzed friction demands, influencing factors, and appropriate models (3 papers published).

   • Developed spreadsheet software for integrating safety costs in life cycle cost analysis (LCCA).

   • Drafted final report and passed the ADA requirements at first submission.

2. Long Term Performance Monitoring of High Friction Surfacing Treatments (HFST) Sites (2016-2020)

   PI: Kelvin C.P. Wang

   Sponsor: Federal Highway Administration, U.S. Department of Transportation

   • Collected field performance data on 36 HFST sites over 12 states in the U.S.

   • Evaluated the variation of HSFT sites over 3 years of observation

3. Ground Tire Rubber (GTR) Dry Process Experiment Pavement Surface Evaluation (2019-2020)

   PI: Kelvin C.P. Wang

   Sponsor: Oklahoma Department of Transportation

   • Collected field data on Ground Tire Rubber (GTR) treated pavement in Oklahoma

   • Analyzed friction data and field profile

4. Continuous Friction Measurement Equipment (CFME) For Highway Safety Management in Oklahoma (2017-2019)

   PI: Joshua Q. Li

   Sponsor: Oklahoma Department of Transportation

   • Applied changepoint methods in dynamic segmentation based on CFME measurements

5. Laboratory Performance of Compound Modified Asphalts Using Waste Tire Rubber (WTR) and Amorphous Poly Alpha Olefin (APAO) (2016-2018)

   PI: Kezhen Yan

   Sponsor: The Hunan Provincial Department of Education of China

   • Evaluated the performance of compound modified asphalt with WTR and APAO

6. Anisotropic Mechanical Behavior of the Pavement Structure and Intelligent Retrieval of its Parameters (2014-2016)

   PI: Kezhen Yan

   Sponsor: The National Natural Science Foundation of China

   • Conducted experimental tests for providing parameters for mechanical simulation

1. Li, J. Q.*, W. Liu, X. Yang, P. Lu, and K. C. P. Wang. 2022. “Statistical Safety Performance Models considering Pavement and Roadway Characteristics.” Journal of Advanced Transportation, 2022: e5871601. Hindawi. https://doi.org/10.1155/2022/5871601.

2. Liu, W., J. Q. Li*, X. Yang, K. Wang, and W. Yu. 2022. “Integrating Skid Resistance and Safety Benefits into Life Cycle Cost Analysis for Pavement Surface Treatment Selection.” Journal of Transportation Engineering, Part B: Pavements, 148 (2): 04022015. American Society of Civil Engineers. https://doi.org/10/gpqm2m.

3. Liu, W., J. Q. Li*, W. Yu, and G. Yang. 2021. “Change-Point Detection Approaches for Pavement Dynamic Segmentation.” Journal of Transportation Engineering, Part B: Pavements, 147 (2): 06021001. American Society of Civil Engineers. https://doi.org/10.1061/JPEODX.0000270.

4. Liu, W., K. Yan, J. Q. Li*, and S. Yang. 2021. “Peridynamics-based simulation of semi-circular bending (SCB) testing.” Construction and Building Materials, 268: 121190. https://doi.org/10/gj74d8.

5. Yan, K., W. Liu*, L. You, J. Ou, and M. Zhang. 2021. “Evaluation of waste cooling oil and European Rock Asphalt modified asphalt with laboratory tests and economic cost comparison.” Journal of Cleaner Production, 310: 127364. https://doi.org/10.1016/j.jclepro.2021.127364.

6. Liu, W., K. Yan*, D. Ge, and M. Chen. 2018. “Effect of APAO on the aging properties of waste tire rubber modified asphalt binder.” Construction and Building Materials, 175: 333–341. https://doi.org/10/gj74fb.

7. Yang, G., K. Wang, J. Q. Li*, M. Romero, and W. Liu. 2022. “Laboratory and Field Performance Evaluation of Warm Mix Asphalt Incorporating RAP and RAS.” KSCE J Civ Eng, 26 (1): 107. https://doi.org/10/gn34vm.

8. Li, J. Q.*, K. Wang, S. A. Cross, W. Liu, and K. Suitor. 2021. “ODOT Involvement with the NCAT Test Track and Task Groups.” International Conference on Transportation and Development 2021 (pp. 215-224). https://doi.org/10.1061/9780784483541.020.

9. Yan, K.*, H. Lan, Z. Duan, W. Liu, L. You, S. Wu, and M. Miljković. 2021. “Mechanical performance of asphalt rejuvenated with various vegetable oils.” Construction and Building Materials, 293: 123485. https://doi.org/10.1016/j.conbuildmat.2021.123485.

10. Liu, J., K. Yan*, W. Liu, and X. Zhao. 2020. “Partially replacing Styrene-Butadiene-Styrene (SBS) with other asphalt binder modifier: Feasibility study.” Construction and Building Materials, 249: 118752. https://doi.org/10.1016/j.conbuildmat.2020.118752.

11. Zhu, W., J. Pan, W. Ma*, S. Deng, W. Zhou, W. Liu, S. Long, C. Yang, and L. You. 2021. “Dynamic response of the heterogeneous deep-sea sediment with nonlinear gradient modulus to mining machine loading.” Marine Georesources & Geotechnology, 40 (3): 255–266. Taylor & Francis. https://doi.org/10/gj8fnc.

12. Yan, K.*, W. He, M. Chen, and W. Liu. 2016. “Laboratory investigation of waste tire rubber and amorphous poly alpha olefin modified asphalt.” Construction and Building Materials, 129: 256–265. https://doi.org/10.1016/j.conbuildmat.2016.10.090.

13. Zhang X., K Yan, and W. Liu*. 2022. “Partially Replacing Cement with Rice Husk Ash (RHA) in Cement Stabilized Macadam (CSM) containing Reclaimed Asphalt Pavement (RAP) for Qualified Subbase.” (Under Review).

14. Liu, W, K Yan*, and Hongyan Ji. 2022. “Bonding Performance Evaluation on WTR-APAO Composite Modified Asphalt as Waterproof Adhesive Layer for Concrete Bridge”. (Under Review).

15. Liu, W., J. Q. Li, and K. Wang. 2022. “Pavement characteristics prediction by machine learning on vehicular sensor data.” (In Preparation).

Selected Honors:

1. Best Poster Award (Oklahoma City, OK. Oct. 2020)

   Wenyao Liu, Joshua Li, Guangwei Yang, Xue Yang, and Kelvin C. P. Wang. “Utilizing Pavement Friction Data for the Reduction of Traffic Crashes and Delays.” 2020 Oklahoma Transportation Research Day.

2. Outstanding Graduate of Hunan Province (Changsha, China. Jun. 2018)

3. Outstanding Graduate of Hunan University (Changsha, China. Jun. 2018)

4. National Scholarship for Graduate Student (China. Sep. 2016)

Patents:

1. Wenyao Liu (2018). Bike Saddle Capable of Being Turned Over for Replacement. China Invention Patent.

2. Wenyao Liu (2016). A Moving-object Article Management System. China Unity Model Patent.

Teaching assistant on

1. CIVE-3633-20472 Transportation Engineering (Oklahoma State University, Spring 2022)

2. CIVE-3633-60636 Transportation Engineering (Oklahoma State University, Fall 2019)

Reviewed for

1. TRB Annual Meeting

2. Automation in Construction

3. Journal of Infrastructure Systems

4. Advances in Data Science and Adaptive Analysis