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Benefits of Retiming Traffic Signals, The
Institute of Transportation Engineers. ITE Journal, Apr 2004 by Sunkari, Srinivasa
* In another project in Burlington, Canada, which contained 62 intersections, 7-percent savings in travel time, 11-percent savings in stops and 6-percent savings in fuel consumption were observed. The project demonstrated an annual savings of $1.06 million for delays and fuel consumption alone. Based on total savings, the payback period for this project was just 13 days (2001).
* On U.S. 1 in St. Augustine, FL, USA, retiming traffic signals at a 11-intersection arterial reduced average arterial delay by 36 percent, arterial stops by 49 percent and arterial travel time by 10 percent, resulting in estimated annual fuel savings of 26,000 gallons and overall annual cost savings of $1.1 million (2001).
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* On RS 26 in Gainesville, FL, retiming traffic signals at an eight-intersection arterial reduced average arterial delay by 94 percent and arterial stops by 77 percent, resulting in estimated annual fuel savings of 3,300 gallons and overall annual cost savings of $93,000(2001).
* On San Jose Boulevard in Jacksonville, FL, retiming traffic signals at a 25-intersection section reduced average arterial delay by 35 percent, arterial stops by 39 percent and arterial travel time by 7 percent, resulting in estimated annual fuel savings of 65,000 gallons and overall annual cost savings of $2.5 million (2001).
ACKNOWLEDGMENTS
This feature is an interim product of the ITE Traffic Engineering Council's project TENC-IO1-02. The following Traffic Engineering Council members contributed to this feature: John Abraham, City ofTroy, MI, USA; Don Bennett, City of Wilmington, NC, USA; Bryan Haigh, Read, Voorhees & Associates Limited, Toronto, Canada; James Harris, City of Rancho Cucamonga, CA, USA; Jim Poston, Meyer Mohaddes Associates Inc., Reno, NV, USA; Carol Jones, South Carolina Department of Transportation, Columbia, SC, USA; Bill Kloos, City of Portland, OR, USA; Susan Langdon, Siemens ITS, Plano, TX, USA; Steven Venglar, Texas Transportation Institute, San Antonio, TX; Paul Vetter, Edwards and Kelcey, Jacksonville, FL, USA; and Pete Yauch, TEI Engineers & Planners, Tampa, FL.
SRINIVASA SUNKARI, P.E.
SRINIVASA SUNKARI,
P.E., is an associate research engineer at the Texas Transportation Institute in College Station, TX, USA, where he conducts research in traffic operations and intelligent transportation systems applications. he has served on the Brazos Valley TexITE chapter board and currently is chair of the ITE Committee on Benefits of Signal Retiming for the Traffic Engineering Council. He holds a bachelor's degree from Osmania University in India and a master's degree from Texas A&M University. he is a member of ITE.
Copyright Institute of Transportation Engineers Apr 2004
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