Balancing Efficiency and Equity of Ramp Meters
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Balancing Efficiency and Equity of Ramp Meters
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2005
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American Society of Civil Engineers
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Article
Abstract
A new freeway ramp control objective - minimizing total weighted travel time is presented in this study. This new objective function is capable of balancing efficiency and equity of ramp meters, while the previous metering objective - minimizing total absolute travel time is purely efficiency-oriented and hence produces a most efficient but least equitable solution. When certain assumptions hold, this metering objective is shown to be equal to minimizing non-linearly weighted ramp delay. A simulation method to achieve the new metering objective is developed and demonstrated using the example of BEEX, a new ramp control strategy also developed in this study, in a microscopic traffic simulator.
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Minnesota Department of Transportation
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http://dx.doi.org/doi:10.1061/(ASCE)0733-947X(2005)131:6(477)
Previously Published Citation
Zhang, Lei and David Levinson (2005) Balancing Efficiency and Equity of Ramp Meters. ASCE Journal of Transportation Engineering 131(6) 477-481.
Suggested citation
Zhang, Lei; Levinson, David M. (2005). Balancing Efficiency and Equity of Ramp Meters. Retrieved from the University Digital Conservancy, http://dx.doi.org/doi:10.1061/(ASCE)0733-947X(2005)131:6(477).
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