1. The 5th Proctor Lecture of ISSMGE: Geosynthetic Stabilization of Road Pavements;Tutumluer;Railroads, and Airfields,,2024
2. Buddhima Indraratna (2016), The 1st Proctor Lecture of ISSMGE: Railroad performance with special reference to ballast and substructure characteristics, Transportation Geotechnics, Volume 7, , June 2016, Pages 74-114, https://doi.org/10.1016/j.trgeo.2016.05.002
3. The 2nd Proctor Lecture of ISSMGE: From Fundamentals to Applications in Compaction: Recent Developments in Embankments and Structural Layers of Pavements and Railways, ICSMGE 2017–19th International Conference on Soil Mechanics and Geotechnical Engineering;Antonio Gomes Correia,2017
4. William Powrie (2024) The 3rd Proctor Lecture of ISSMGE: Railway Track Substructure: Recent Research and Future Directions, Transportation Geotechnics, Vol 46, 101234, https://doi.org/10.1016/j.trgeo.2024.101234
5. Soheil Nazarian (2022) The 4th Proctor Lecture of ISSMGE: Building Better Road Foundations by Taking Advantage of Emerging Technologies, the 20th International Conference on Soil Mechanics and Geotechnical Engineering (ICSMGE 2022) https://www.issmge.org/filemanager/technical_committee_pages/69/Proctor_Lecture/4th_Ralph_Protor_Lecture_Presentation_-_2022_-_Nazarian.pdf