Campus Units

Civil, Construction and Environmental Engineering

Document Type

Article

Publication Version

Accepted Manuscript

Publication Date

2015

Journal or Book Title

Transportation Research Record

Volume

2488

First Page

53

Last Page

61

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.

Research Focus Area

Transportation Engineering

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

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