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Innovations in Adaptive Signal Control Technology: Validation and Benefits Overview

This presentation explores the Adaptive Signal Control Technology (ASCT) initiatives and validation processes led by experts including Edward Fok from FHWA, Dr. Douglas Gettman from Kimley-Horn, and Edward Smaglik from Northern Arizona University. Key topics include shortening project delivery, enhancing legal sufficiency, and expanding programmatic agreements. The session highlights the benefits of ASCT in managing variable demand conditions, improving travel times, safety, and emissions reduction. Practical tools and the validation framework for assessing ASCT implementation will be discussed, alongside testing plans in Mesa, Arizona.

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Innovations in Adaptive Signal Control Technology: Validation and Benefits Overview

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Presentation Transcript

  1. Adaptive Signal Control Initiatives and Validation Program Presenters Edward Fok, FHWA Resource Center Transportation Technology Specialist Dr. Douglas Gettman, Kimley-Horn & Associates Edward Smaglik, Northern Arizona University Assistant Professor of Civil Engineering

  2. Better, Faster, Smarter Shortening Project Delivery • Planning & Environmental Linkages • Legal Sufficiency Enhancements • Expanding Use of Programmatic Agreements • Use of In–Lieu Fee and Mitigation Banking • Clarifying the Scope of Preliminary Design • Flexibilities in ROW • Flexibilities in Utility Accommodation and Relocation • Enhanced Technical Assistance on Ongoing EISs Technology Innovation • Warm Mix Asphalt • Precast Bridge Elements • Geosynthetic Reinforced Soil • Safety Edge • Adaptive Signal Control Technology (ASCT)

  3. What have we learned… • Systems produce substantial benefits over coordinated TOD signal timing • Travel time, Delay, Emissions, Congestion, Safety • Most effective where: • demand conditions are Variable and unpredictable • Linear Arterials, limited success within tight grids • Under Saturated

  4. Barriers to Adoption of ASCT • Complexity • Cost • Uncertainty about Benefits

  5. Validation Program for ASCT • Generic Process and tools to measure any benefits from deployment of ASCT • Complementary to the Model System Engineering Document

  6. What is Validation? • Validation: Objectives are tested • Did it do what we want it to do? • Verification: Requirements are tested • Did we get what we asked for?

  7. Model Systems Engineering Document for ASCT Systems Basic Systems Engineering Deliverables • Concept of Operations • Requirements • High Level Design • Verification Plan • Validation Plan

  8. Model SE Document for ASCT Testing Testing Validation Needs Verification Requirements Design & Implementation

  9. ASCT Validation Process Testing Testing Validation Needs Verification Requirements Design & Implementation

  10. Our Goals for Today • Describe the challenges to validate ASCT • Describe the theoretical underpinning of our approach. • Describe the tools and the process developed to validate ASCT and the plans to test these techniques in Mesa, Arizona.

  11. Questions? http://www.fhwa.dot.gov/everydaycounts edward.fok@dot.gov doug.gettman@kimley-horn.com edward.smaglik@nau.edu http://www.pcb.its.dot.gov

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