Low-volume road construction can benefit from using geosynthetics. TRB hosted a webinar on Monday, November 8, 2021 from 2:00-3:30 PM Eastern that discussed the current state of knowledge regarding the use of geosynthetics in road construction. Presenters identified long-term benefits of geosynthetics by highlighting a case study from the Virginia Department of Transportation (VDOT). They discussed the application, specification, and life cycle cost analysis of geotextiles for layer separation in low-volume pavements. They also enumerated guidelines for implementing use of geotextiles.

This webinar is sponsored by the TRB Standing Technical Committees on Transportation Earthworks, Geosynthetics, and Low-Volume Roads.

The slides and recording are available. 

Webinar agenda and presenters

1. Current state of the practice for using geosynthetics: Edward Hoppe, VDOT
2. Predicted long-term performance: Chaz Weaver, VDOT
3. Life cycle cost analysis: Audrey Moruza, VDOT
4. Question and answer session: Moderated by Jennifer Nicks, Federal Highway Administration

The first 60 minutes of the webinar will be for presentations and the final 30 minutes will be reserved for audience questions.

Learning Objectives

At the end of this webinar, participants will be able to:

1. Identify current specifications
2. Describe how to use geosynthetics for subgrade separation and stabilization
3. Discuss importance of less prescriptive life cycle cost analysis methods

Professional Development Hours

Professional Development Hours (PDHs) earned on completion of this program were reported to the Registered Continuing Education Program (RCEP). Certificates of Completion are issued to all participants via the RCEP.net online system. Complaints about registered providers may be addressed to RCEP, 1015 15th Street, NW, 8th Fl., Washington, DC, 20005.