Events / Meetings

An Update on Traffic Signal Change and Clearance Intervals

When: Friday, December 15, 2023 | 11:00 - 12:30 PM ET

This webinar is led by the Traffic Engineering Council.

Webinar Description:

Divergent and strongly held positions characterize any discussion of the procedures for calculating traffic signal change and clearance intervals. Although the extended kinematic equation was recommended by ITE in Guidelines for Determining Traffic Signal Change and Clearance Intervals (2020), there remains a strong need to collect primary data to further test this approach and the other research needs identified in the recommended practice. This webinar provides a review of the recommended practice and an update on the current research that is underway along with some observations from agencies’ current practice.

Learning Objectives:

  • Gain an understanding of the background and key attributes of the extended kinematic equation for traffic signal change intervals in ITE’s Guidelines for Determining Traffic Signal Change and Clearance Intervals recommended practice.
  • Learn about the literature review, study plan, and upcoming survey of practice being performed as part of the Traffic Signal Change and Clearance Interval Transportation Pooled Fund Study.
  • Explore how transportation agencies are addressing ITE’s recommended use of the extended kinematic equation through research and policy considerations.


Ken King, P.E., District Engineer | Virginia Department of Transportation | Salem, Virginia, United States


  • Eddie Curtis, P.E., Innovation Operations Strategies Team Leader | Federal Highway Administration | Atlanta, Georgia, United States
  • Jamie Mackey, P.E., PTOE, Transportation Operations Specialist | Federal Highway Administration | Minneapolis, MN, United States
  • Alan Davis, P.E., PTOE, Assistant State Traffic Engineer | Georgia Department of Transportation| Atlanta, Georgia, United States
  • Douglas E. Noble, P.E., PTOE, Senior Director, Management and Operations | Institute of Transportation Engineers | Washington, District of Columbia, United States

ITE Members: Free
Non-Members: $79.00

Registration for webinar includes the live event, an archived recording with access for 30 days to each registrant. If you are a non-member of ITE you will need to create an account to register. You can create an account here.

PDH Credit Certificate: If you would like PDH Credit for this webinar, there is a processing fee for each registrant of $20 regardless of membership status to receive 1.5 PDH credits certificate.
Instructions and link will be provided at the conclusion of the live event. Participants are able to purchase and retrieve their certificate until their access to the content expires. After the content expires and goes into archive, the certificate opportunity is forfeit.