TRB Webinar: Evaluation of Superheavy Load Movement on Flexible Pavements

April 23, 2019 02:00 PM - 03:30 PM U.S. Eastern
Cost (for your seat)
Professional Development Hours for this webinar
1.50 hour(s)
Continuing Education Hours for this webinar
AAE: 0.00 hour(s)
AICP: 0.00 hour(s)
CLE: 0.00 hour(s)

TRB will conduct a webinar on Tuesday, April 23, 2019, from 2:00 PM to 3:30 PM ET that will examine procedures for analyzing the impacts of superheavy load (SHL) movement on flexible pavements developed under a U.S. Federal Highway Administration-sponsored research project*. SHL hauling units are much larger and heavier than standard trucks and may involve gross vehicle weights in excess of a few million pounds, which at times requires specialized trailers and components with nonstandard spacing between the tires and axles.

The presenters will discuss analysis methods -- such as subgrade bearing failure analysis, sloped pavement shoulder failure analysis, buried utility risk analysis, localized shear failure analysis, deflection-based service limit analysis, and cost allocation analysis -- to determine whether a pavement is structurally adequate to sustain SHL movement.  They also will describe the SuperPACK tool developed to conduct this analysis.

This webinar was organized by the TRB Standing Committee on Structural Requirements of Asphalt Mixtures; TRB Standing Committee on General and Emerging Pavement Design; TRB Standing Committee on Design and Rehabilitation of Asphalt Pavements; and TRB Standing Committee on Pavement Structural Modeling and Evaluation.

*The opinions and conclusions expressed or implied in this webinar are those of the researchers who performed the research. They are not necessarily those of the Transportation Research Board or the National Academies of Sciences, Engineering, and Medicine.

Some registrants will need to pay $95 to attend this webinar.  Sign into to view registration information.

Webinar Presenter

  • Elie Hajj, University of Nevada, Reno
  • Raj Siddharthan, University of Nevada, Reno
  • Hadi Nabizadeh, University of Nevada, Reno
  • Seyed-Farzan Kazemi, University of Nevada, Reno

Moderated by: Nadarajah Sivaneswaran, Federal Highway Administration

Webinar Outline

  1. Introduction and study objectives
  2. Superheavy load analysis methodology
  3. Overview of analysis procedures: theory and assumptions
  4. Development of SuperPACK
  5. Superheavy load movement case studies
  6. Conclusions and future directions
  7. Question and answer session

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:

  • Determine when to undertake a superheavy load pavement analysis
  • Identify failure mechanisms and associated analysis procedures
  • Describe how to evaluate the performance and cost of superheavy load movement using the developed methodology
  • Discuss mitigation strategies and solutions

Professional Development Hour Information

A certificate for 1.5 Professional Development Hours (PDHs) will be provided to Professional Engineers (PEs) who register and attend the webinar as an individual For approved webinars, TRB’s webinar program awards Registered Continuing Education Provider (RCEP) Professional Development Hour (PDH) credits associated with participation only to the registered individual and not to other members of a group that view the webinar together. To receive PDH credits, please register as an individual and sign into the webinar from your personal computer. After doing this, you may join your group in a meeting room.  To be eligible for the credits, individuals must remain signed in for the entire webinar, including for any question and answer session following the presentations.

In addition, advance registration is available until just before the webinar starts. Once the webinar starts, you will be unable to submit your registration. Individuals that are registered for a webinar but do not receive their confirmation emails due to their organization’s internal firewalls should contact the TRB Helpdesk ( for assistance in signing in.

Individuals registered as Florida PEs are no longer required to email TRB with your license number to report your attendance. Instead, please use your certificate that TRB provides through as verification of your attendance to the Florida Board of Professional Engineers.

Please check with your licensing board to ensure that TRB webinar PDHs are approved by your board.

This webinar was developed in October 2018. TRB has met the standards and requirements of the Registered Continuing Education Program (RCEP). Credit earned on completion of this program will be reported to RCEP by TRB. Complaints about registered providers may be sent to RCEP, 1015 15th Street, NW, 8th Floor, Washington, DC 20005. Website:

Registration questions? Contact Reggie Gillum at