Welcome to the 4th International Conference on Transportation Geotechnics (4th ICTG), which will be held virtually, on May 24–27, 2021. This is the main conference event of the International Society of Soil Mechanics and Geotechnical Engineering (ISSMGE) Technical Committee (TC) 202 on Transportation Geotechnics and it is organized every four years. The primary focus of TC202 is to apply broad engineering to bridge the gap between Pavement/Railway Engineering and Geotechnical Engineering. The ISSMGE TC202 website:

The Transportation Geotechnics International Conference series began under the auspices of ISSMGE Technical Committee (TC) 3 and was initiated in 2008 at the University of Nottingham, UK, as an international event designed to address the growing requirements of infrastructure for societies. The 2nd International Conference on Transportation Geotechnics (ICTG) took place in Sapporo, Japan in 2012 under the ISSMGE-TC202 that followed the TC3 activities for the period 2009-2013, and the 3rd ICTG was organized in Guimarães, Portugal in September 2016. Following this 3rd successful conference, the 4th ICTG in 2021 will continue to promote co-operation and exchange of information and knowledge about the geotechnical aspects and address challenges in design, construction, maintenance, monitoring and upgrading of roads, railways, airfields and harbor facilities and other ground transportation infrastructure with the goal of providing safe, economic, environmental, reliable and sustainable infrastructures.

The 4th ICTG will include 3rd Proctor lecture, ASCE’s Carl Monismith Lecture, meeting of Young Transportation Geotechnics Engineers (YTGE), several pre-conference workshops, plenary, keynote and breakout sessions as well as a technical exhibition for better disseminations of findings and best practices. Peer reviewed conference papers will be fully citation indexed and published in a Springer proceedings book.