ZL Research Group

Welcome to Dr. Zhen Leng's Research Group

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Professional Community

Editorship and Reviewer for Professional Journals

  • Founding Editor-in-Chief of Journal of Cleaner Materials (Elsevier, launched in April 2021 and indexed by Scopus in April 2022)

  • Executive Editor of Journal of Cleaner Production (Elsevier, 5-year Impact Factor: 11.016, JCR-Q1)

  • Associate Editor of ASCE Journal of Transportation Engineering, Part B: Pavement (ASCE, 5-year Impact Factor: 2.432, JCR-Q3) 

  • Associate Editor of ASCE Journal of Materials in Civil Engineering (ASCE, 5-year Impact Factor: 4.077, JCR-Q2)

  • Editorial Board Member of Road Materials and Pavement Design (Taylor Francis, 5-year Impact Factor: 4.039, JCR-Q2)

  • Editorial Board Member of Transportation Research Part D: Transport and Environment (Elsevier, 5-year Impact Factor: 7.624, JCR-Q1) 

  • Editorial Board Member of International Journal of Transportation Science and Technology (Elsevier/ KeAi, 2021 Cite Score: 6.5, SJR-Q1)

  • Reviewer for more than 30 leading international journals

Leadership in Professional Associations

  • President of ASCE Greater China Section (2021-2022)

  • Vice President of Academy of Pavement Science and Engineering (APSE) (2021-2023)

  • Council Member (only member from university) of Hong Kong Institute of Highways and Transportation (HKIHT) (2021-)

  • Chair of the Asphalt Pavement Discipline of World Transport Convention (WTC) (2019-)

  • Director of International Association of Chinese Infrastructure Professionals (IACIP) (2018-)

  • Executive Board Member (2014-) and Honorary Deputy Treasurer (2017-) of Hong Kong Society for Transportation Studies (HKSTS) 

Organization of International/Regional Conferences

  • Co-Chair of the 11th International Conference on Valorization of Waste in Construction (WASCON2023), Hong Kong, December 13-16, 2023.

  • Chair of the one-day Practical Seminar on Carbon Neutrality in Construction (PolyU CEE/CSE 50th Anniversary Event), Hong Kong, September 2023.

  • Chair of the International Conference on Advances in Materials and Pavement Performance Prediction, Hong Kong, May 22-24, 2023.

  • Co-Chair of the NSFC-RGC Youth Forum on Future-Oriented Transportation Infrastructure (hybrid mode), Xi’an, Shaanxi, December 11-12, 2022.

  • Co-Chair of the 2021 ASCE International Airfield and Highway Pavements Conference, Austin, USA, June 8-10, 2021 (virtual, ASCE’s flagship conference on pavement engineering).

  • Co-Chair of the 2020 International Conference on Sustainable and Innovative Infrastructure, Taipei, Taiwan, October 22-24, 2020.

  • Co-Chair of the International Conference on Cleaner Production & Sustainability, Hong Kong, October 29-30, 2019.

  • Chair of the 7th International Transportation PhD Student Symposium, Hong Kong, October 25-26, 2018.

  • Co-Chair, the 10th International Conference on Airport and Road Pavement Technologies, Hong Kong, August 08-10, 2017

  • Chair, the 19th International Conference of Hong Kong Society of Transportation Studies, Hong Kong, December 13-15, 2014



  • Associate Director of the Research Centre for Resources Engineering towards Carbon Neutrality (RCRE)

  • Lab-in-Charge/Director of the Road Research Laboratory (RRL)

  • Deputy Programme Leader for BEng in Civil Engineering - Senior Year

  • Member of Faculty Research Committee (FRC)

  • Member of Departmental Research Committee (DRC)

  • Member of Deaprtment Learning and Teaching Committee (DLTC)


  • Member of Review Panel under the Land Ordinance, Development Bureau, Hong Kong SAR, 2018-