Acceleration, deceleration, and stopping sight distance (SSD) criteria are key factors in determining roadway geometric design requirements. These elements are influenced by variables such as grade, vehicle type, maneuver type, brake reaction time, object height, and driver’s eye height. TRB will host a webinar on Thursday, February 6, 2025 from 1:00 PM to 2:30 PM Eastern that will cover the findings from recent studies that assess design policies related to these criteria and informed recommendations for updates to the AASHTO Green Book.
This webinar is based on NCHRP Research Report 1081: Acceleration, Deceleration, and Stopping Sight Distance Criteria for Geometric Design of Highways and Streets.
This webinar is sponsored by TRB’s National Cooperative Highway Research Program and the Standing Technical Committee on Performance Effects of Geometric Design.
Registration is free for employees of TRB sponsors as well as Titanium and Cobalt Global Affiliates. The registration rate for all other attendees is $100. Sign into MyTRB.org to view registration information.
A recording will be sent to all registrants after the webinar.

A quality assurance program ensures that materials and construction meet the requirements of approved plans and specifications. Given the high turnover in the pavement and materials field, uniform guidance is essential for training new engineers, technicians, and inspectors. TRB will host a webinar on Tuesday, February 11, 2025 from 11:00 AM to 12:30 PM Eastern that will provide an introduction to quality assurance components; discuss variability, risks, and pay factors; and identify indicators of material certification testing fraud.
This webinar is the first of a two-part series. The second webinar, Quality Assurance of Transportation Materials and Construction—Part II, will be held in March 2025.
This webinar is sponsored by TRB’s Standing Technical Committee on Quality Assurance Management.
Registration is free for employees of TRB sponsors as well as Titanium and Cobalt Global Affiliates. The registration rate for all other attendees is $100. Sign into MyTRB.org to view registration information.
A recording will be sent to all registrants after the webinar.

To optimize supply chain operations, public and private freight planning stakeholders must harmonize decision making related to infrastructure investments. TRB will host a webinar on Wednesday, February 19, 2025 from 10:30 AM to 12:00 PM Eastern that will focus on performance management for freight demand and demand elasticity. Presenters will share factors which drive freight demand, operations and infrastructure improvements decisions, and common performance measures planners use for decision making.
This webinar is sponsored by TRB’s Standing Technical Committees on Freight Transportation Economics and Regulation and Freight Transportation Planning and Logistics.
Registration is free for employees of TRB sponsors as well as Titanium and Cobalt Global Affiliates. The registration rate for all other attendees is $100. Sign into MyTRB.org to view registration information.
A recording will be sent to all registrants after the webinar.

Assessing conditions on bridge decks with non-destructive evaluation (NDE) technologies may reduce operating costs and extend lifecycles. It fosters cost-effective and timely interventions. TRB will host a webinar on Tuesday, February 25, 2025 from 1:00 PM to 2:30 PM Eastern that will showcase the integration of NDE results into the bridge preservation decision-making process. Presenters will highlight cost savings by comparing the combined expense of NDE and subsequent interventions to the costs associated with deferring NDE-informed actions.
This webinar is sponsored by TRB’s Standing Technical Committees on Testing and Evaluation of Transportation Structures and Bridge Preservation.
Registration is free for employees of TRB sponsors as well as Titanium and Cobalt Global Affiliates. The registration rate for all other attendees is $100. Sign into MyTRB.org to view registration information.
A recording will be sent to all registrants after the webinar.

Airport arts programs enhance the passenger experience, engage stakeholders, and allow airports to highlight both the structure's unique features and cultural insights about the surrounding area. TRB will host a webinar on Thursday, February 27, 2025 from 11:00 AM to 12:30 PM Eastern that will provide an overview of the various methods of airport arts program management which shape airport culture and diversity. Effective arts management is not only a matter of adornment, but also a strategic endeavor to harmonize artistic vision with operational efficiency. Presenters will provide high-level findings and key takeaways from ACRP Synthesis 135: Methods of Airport Arts Program Management. Presenters will also share examples of successful airport arts programs.
This webinar is sponsored by TRB’s Airport Cooperative Research Program.
There is no fee to attend this webinar. Registration is required.
A recording will be sent to all registrants after the webinar.

Are you looking to improve design and construction for long-lasting, sustainable concrete structures? TRB will host a webinar on Thursday, February 27, 2025 from 2:00 PM to 3:30 PM Eastern that will explore real-world examples that demonstrate the resilience of concrete in various applications, highlighting its ability to withstand extreme conditions, environmental stresses, and long-term wear. Presenters will share practical insights into how resilient concrete contributes to the longevity and sustainability of infrastructure, as well as strategies for incorporating resilient concrete solutions into your own projects.
This webinar is sponsored by TRB’s Standing Technical Committee on Design and Rehabilitation of Concrete Pavements.
Registration is free for employees of TRB sponsors as well as Titanium and Cobalt Global Affiliates. The registration rate for all other attendees is $100. Sign into MyTRB.org to view registration information.
A recording will be sent to all registrants after the webinar.