Development of a Test Method for Assessing the Performance of Vehicular Traffic Signal Assemblies during Hurricane Force Winds

Zisis, Ioannis; Irwin, Peter; Chowdhury, Arindam Gan; Azizinamini, Atorod; Florida International University. Department of Civil and Environmental Engineering; Florida International University. International Hurricane Research Center. Wall of Wind Research Facility

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Development of a Test Method for Assessing the Performance of Vehicular Traffic Signal Assemblies during Hurricane Force Winds

2019-03-01
By Zisis, Ioannis ; Irwin, Peter ; Chowdhury, Arindam Gan ; ...

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Details:

Creators:

Zisis, Ioannis ; Irwin, Peter ; Chowdhury, Arindam Gan ; Azizinamini, Atorod

Zisis, Ioannis ; Irwin, Peter ; Chowdhury, Arindam Gan ; Azizinamini, Atorod Less -
Corporate Creators:

Florida International University. Department of Civil and Environmental Engineering ; Florida International University. International Hurricane Research Center. Wall of Wind Research Facility

Florida International University. Department of Civil and Environmental Engineering ; Florida International University. International Hurricane Research Center. Wall of Wind Research Facility Less -
Corporate Contributors:

Florida. Department of Transportation. Research Center
Subject/TRT Terms:

[+]

Aerodynamic Stability Assemblies (Equipment) Cable Support Cable Systems Hangers Hurricanes Sign Supports Traffic Signals Wind Wind Resistant Design
Publication/ Report Number:

BDV29 977-20
Resource Type:

Tech Report
Geographical Coverage:

Florida ; United States

Florida ; United States Less -
Edition:

Final Report, Nov. 2014 – March 2019
Contracting Officer:

Morgan, Jeff
Corporate Publisher:

Florida. Department of Transportation. Research Center
Abstract:

The performance of span-wire mounted traffic signals during past hurricane seasons indicated to FDOT the need to explore new methods to improve traffic signal assembly survivability during hurricane force winds. FDOT and FIU embarked on a collaborative research program to study the performance of spanwire traffic signal systems subjected to extreme winds with the goal to enhance their resiliency and survivability and potentially find a methodology that could be utilized to certify the different products used in span-wire traffic signal assemblies. The tasks under this research project included full and model scale testing, numerical simulation studies, development of a test methodology that could be used for certifying vehicular traffic signal assemblies, identification of potential active and passive mitigation measures and investigation of the feasibility of designing/building a mechanical or wind-based test apparatus that could be operated by FDOT to verify compliance with future test standards. The execution of the different tasks generated a plethora of experimentally and numerically derived outcomes. The findings from the current research project are of great value and significance since it was the first time that these systems were tested at full-scale in a controlled and realistic environment. The aerodynamic instability that has been observed in the field was identified and quantified for the very first time in a laboratory setting. Numerous recommendations have been generated following the findings of this research that will assist FDOT to enhance the survivability of span-wire traffic signals during extreme wind events.
Format:

PDF
Funding:

BDV29 977-20
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:675b402bae31f0e0e410d0eebe78a571f85b43280da447996dd7290109ddc37b
Download URL:

https://rosap.ntl.bts.gov/view/dot/54624/dot_54624_DS1.pdf
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Development of a Test Method for Assessing the Performance of Vehicular Traffic Signal Assemblies during Hurricane Force Winds

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