Balancing Efficiency and Equity of Ramp Meters

Lei Zhang and David Levinson

No 200508, Working Papers from University of Minnesota: Nexus Research Group

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.

Keywords: Ramp Metering; Efficiency; Equity; BEEX; Value of travel time (search for similar items in EconPapers)
JEL-codes: D10 D8 R40 R48 (search for similar items in EconPapers)
Date: 2005
References: View complete reference list from CitEc
Citations: View citations in EconPapers (9)

Published in ASCE Journal of Transportation Engineering 131(6) pp.477-481.

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http://hdl.handle.net/11299/179923 First version, 2007 (application/pdf)

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Persistent link: https://EconPapers.repec.org/RePEc:nex:wpaper:balancingrampmeters

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