A study found that the benefit-to-cost ratio of the Minneapolis-St. Paul ramp metering system was 15:1.
Analysis of the benefits and costs of the ramp metering system showed that when the costs of the entire congestion management system (including changeable message signs, traveler information, and other components) are factored in, the benefit/cost ratio for ramp metering was 5:1. When ramp meter benefits were compared to only those costs directly associated with ramp metering, the benefit/cost ratio was 15:1.
Evaluation of Ramp Meter Control Effectiveness in Two Twin Cities Freeways, TRB 2002
Mn/DOT Ramp Meter Evaluation: Phase II Report
Published By: Minnesota DOT
Prepared by Cambridge Systematics for the Minnesota DOT
Source Date: February 2001
EDL Number: 13425URL: http://ntl.bts.gov/lib/jpodocs/repts_te/13425.pdf
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