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  1. Learning Catalog
  2. A Safe System-Based Framewo...
  3. A Safe System-Based Framewo...

    A Safe System-Based Framework and Analytical Methodology for Assessing Intersections

    • Overview

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    The live event has ended. Recording now available to view on-demand.

    This webinar is led by ITE Safety Council.

    To learn how to register on-demand and see more information about the webinar including PDH credit certificate fees, please view the webinar course page here.

    Webinar Description:

    In the United States, the Safe System approach represents a paradigm shift in how road safety is addressed. Foundational to the Safe System approach is that no person should be killed or seriously injured when using the road system, and that it is a shared responsibility by all parties involved to ensure this becomes reality. From a roadway infrastructure perspective, a Safe System approach involves managing the circumstances of crashes such that the kinetic energy imposed on the human body be kept at levels that are tolerable in terms of survivability and degree of harm. At an intersection, this challenge is characterized through managing speed and crash angles, as well as considering risk exposure and complexity. FHWA has developed a Safe System for Intersections method that can be applied at a project level and be incorporated into an Intersection Control Evaluation alternatives screening process to provide another metric for safety. This method focuses on conflict points, exposure, and the concepts of transferable kinetic energy and how these metrics can be used by planners and engineers alike to inform decision making for intersection projects.

    A primary objective of this project was to develop a Safe System for Intersections (SSI) analytical methodology that intersection planners and designers can readily implement and that dovetails with the typical project development process—one that incorporates Safe System principles and relies upon commonly available project-level data. The goal is to provide a technical basis by which intersection planners and designers can apply kinetic energy management to common intersection projects in the U.S. However, the method’s framework provides flexibility to incorporate broader system efforts and characteristics (e.g., users, vehicles, speeds) in the future if supporting data
    are available.

    This webinar, supported by representatives of the Federal Highway Administration, the Florida Department of Transportation, and the Georgia Department of Transportation is sponsored by the ITE Standing Committee on Data-Driven Safety Analysis (DDSA) and provides an excellent opportunity for planners and engineers alike to learn more about this new analytical method and how it has been implemented by the states of Georgia and Florida.

    Learning Objectives:

    • Describe the Safe System-Based Framework for Intersections;
    • Recall the key concepts and methodological requirements of this method;
    • Understand where and how this method has been implemented by Georgia and Florida.

    Contributors

    • Moderator: David Petrucci, PTOE, Senior Safety Engineer | USDOT FHWA | Baltimore, MD, United States

      Mr. Petrucci is a Senior Safety Engineer and member of the Safety and Design Technical Service Team in the Federal Highway Administration’s Resource Center and has served in this position for the past eight (8) years. Mr. Petrucci has over 19 years of experience in consulting and government while specializing in intersection and roadway safety and design. Mr. Petrucci is a member of the FHWA Safety Culture and Safe System Cross-Office Working Group, the Intersection Safety Roadmap team, and has also served as a team member of the FHWA EDC Data-Driven Safety Analysis (DDSA) effort. He provides technical assistance, training, and technology deployment to state, local, and tribal governments throughout the United States. Mr. Petrucci has also been an active member of the Institute of Transportation Engineers (ITE) including serving as a member of Executive Committee of the ITE Traffic Engineering Council (2011 to 2017) and the ITE Transportation Safety Council as Vice-Chair (2016 to 2018) and Chair (2018 to 2020). Mr. Petrucci also serves as an appointed organizational director with the Transportation Professional Certification Board, Inc. (2020 to present).

    • Dibakar Saha, PTOE, Traffic Services Safety Engineer | Florida Department of Transportation | Tallahassee, Florida, United States

      Dr. Dibakar Saha is currently working with the Florida Department of Transportation (FDOT). In his current role as the Traffic Services Safety Engineer, he oversees FDOT's Strides 2 Zero program and Intersection Control Evaluation (ICE) program. He has expertise in transportation safety, safe system, traffic operations, statistical and machine learning modeling, and academic research. He is a member of the AASHTO Highway Safety Manual Second Edition (HSM2) Steering Committee and TRB’s Statistical and Econometrics Methods Committee (AED60). He also serves a member in the panel of multiple NCHRP projects. He is a Professional Engineer in Florida and Arizona. He holds the certification of a Professional Traffic Operations Engineer and a Road Safety Professional level 2. He authored/co-authored nearly 50 scholarly publications, including journal articles, conference papers, and research reports.

    • Darren (Sam) Harris, P.E., Assistant State Traffic Engineer Office of Traffic Operations | Georgia Department of Transportation | Atlanta, GA, United States

      Samuel Harris graduated from Georgia College with a Bachelor’s in Science and Georgia Institute of Technology with a Bachelor’s and Master’s in Civil Engineering. Samuel is a registered professional engineer in the State of Georgia. Sam’s work with GDOT started with timing traffic signals, traffic modeling, connected vehicles, and assisting with the State’s deployment of Automated Traffic Signal Performance Metrics (ATSPM). Currently, Samuel is the Assistant State Traffic Engineer for GDOT and one of his key responsibilities is in charge of facilitating the State’s HSIP funding through the GDOT Safety Program.

    October 3, 2023
    Tue 2:00 PM EDT

    Duration 1H 0M

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