Travel Time Variability After A Shock: The Case Of The Twin Cities Ramp Meter Shut Off

Lei Zhang and David Levinson

No 200309, Working Papers from University of Minnesota: Nexus Research Group

Abstract: Ramp meters in the Twin Cities were turned off for 8 weeks in the Fall of 2000. This paper analyzes travel time variability with and without ramp metering for several representative freeways during the afternoon peak period. Travel time variability is generally reduced with metering. However, it is found that ramp meters are particularly helpful for long trips relative to short trips. The benefits from reducing travel time variability with meters are on the order of 37% of the benefits from reducing average travel time.

Keywords: Freeway Operations, Ramp Meters, Travel Time Variability Before-and-after study; Ramp Metering System; Variable Message Signs (VMS); Freeway Service Patrol; Highway Helper Program. (search for similar items in EconPapers)
JEL-codes: H42 R41 R48 (search for similar items in EconPapers)
Date: 2001
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Published in The Network Reliability of Transport (2003) Pergamon (editors Yasunori Iida and Michael Bell)

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http://hdl.handle.net/11299/179874 First version, 2007 (application/pdf)

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

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