Measures of Effectiveness and Validation Guidance for Adaptive Signal Control Technologies

Details

• Creators:
  Gettman, Douglas ; Folk, Edward ; Curtis, Eddie ; Ormand, Kent Kacir Dan ; Mayer, Matthew ; Flanigan, Erin
• Corporate Contributors:
  United States. Federal Highway Administration ; Kimley-Horn and Associates
• Subject/TRT Terms:
  Traffic Signs And Signals--Control Systems Traffic Signs And Signals--Evaluation
• Publication/ Report Number:
  FHWA-HOP-13-031
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Corporate Publisher:
  United States. Federal Highway Administration
• Abstract:
  As part of the Every Day Counts initiative, FHWA is promoting the implementation of Adaptive Signal Control Technology (ASCT) to improve traffic signal system operations in the United States. Among the other “low-hanging fruit” technologies in the Every Day Counts program (e.g., rumble strips, safety edge), ASCT technology has been in existence for many years but has not seen widespread acceptance. ASCTs have not historically been implemented widely due their cost and complexity (perceived or real) compounded by a lack of clear documentation of benefits. One reason for the uncertainty about benefits of ASCT is due to the wide variation in cost, complexity, and performance reporting methodologies of evaluation studies for ASCT. In this project, generic measures of effectiveness and validation tools were developed for agencies to to validate that selected ASCT meet their performance objectives. In addition, the process and tools can be applied to traditional coordinated-actuated signal timing as well. The report identifies how each of the measures and processes can be used for validation of ASCT. Guidance on improving the state of the practice is provided. This approach was tested at a field site in Mesa, Arizona where an ASCT system has been deployed for over one year. The City of Mesa allowed the test phase to include approximately 30 days during which the ASCT was turned off and background coordination patterns were used instead. Detailed findings for the validation approach are provided in Appendices to the main report.
• Format:
  PDF
• Funding:
  DTFH61-06-D-00004
• Collection(s):
  Federal Highway Administration
• Main Document Checksum:
  urn:sha-512:93a0454e39c0d9b3cb366daee83b5457badd22db96bbb4ea1685656df9a9dc31d932600ac9224eda68826bf564ffdf89957ff618be8c3eecdf05dee2eb254c50
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/41403/dot_41403_DS1.pdf
• File Type:
  [PDF - 9.98 MB ]