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Article
Traffic Signal Battery Backup Systems Use of Event-Based Traffic Controller Logs in Performance-Based Investment Programming
Transportation Research Record
  • Mo Zhao, Iowa State University
  • Anuj Sharma, Iowa State University
  • Edward Smaglik, Northern Arizona University
  • Tim Overman, Indiana Department of Transportation
Document Type
Article
Publication Version
Accepted Manuscript
Publication Date
1-1-2015
DOI
10.3141/2488-06
Abstract
A stable supply of power is critical element for reliable traffic signal operation. Battery backup systems are often used to prevent traffic signals from power disruption. Currently, battery backup systems are designed using engineering judgment due to a lack of operational requirements and well-defined performance measures. New high resolution traffic controllers now have the ability to record event based data for power failures and traffic counts at a tenth of a second resolution. Equipped with this high-resolution data, the paper proposes a performance-based investment programming using average annual signal downtime (AASD) over the analysis period as a performance measure. AASD is stochastically estimated using hazard-based duration models developed with power failure data. A volume and functional class weighted stochastic optimization scheme is then presented for a battery backup system project planning by sizing battery capacity to minimize AASD for a network under given budget constraints.
Comments

This is a manuscript of an article from Transportation Research Record 2488 (2015): 53, doi: 10.3141/2488-06. Posted with permission.

Copyright Owner
National Academy of Sciences
Language
en
File Format
application/pdf
Citation Information
Mo Zhao, Anuj Sharma, Edward Smaglik and Tim Overman. "Traffic Signal Battery Backup Systems Use of Event-Based Traffic Controller Logs in Performance-Based Investment Programming" Transportation Research Record Vol. 2488 (2015) p. 53 - 61
Available at: http://works.bepress.com/anuj_sharma1/39/