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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.

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Adaptive signal control initiatives and validation program

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


Better faster smarter
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)


What have we learned
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


Barriers to adoption of asct
Barriers to Adoption of ASCT

  • Complexity

  • Cost

  • Uncertainty about Benefits


Validation program for asct
Validation Program for ASCT

  • Generic Process and tools to measure any benefits from deployment of ASCT

  • Complementary to the Model System Engineering Document


What is validation
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?


Model systems engineering document for asct systems
Model Systems Engineering Document for ASCT Systems

Basic Systems Engineering

Deliverables

  • Concept of Operations

  • Requirements

  • High Level Design

  • Verification Plan

  • Validation Plan


Model se document for asct
Model SE Document for ASCT

Testing

Testing

Validation

Needs

Verification

Requirements

Design & Implementation


Asct validation process
ASCT Validation Process

Testing

Testing

Validation

Needs

Verification

Requirements

Design & Implementation


Our goals for today
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.


Questions
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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