"The average rate of [red light running] incidences per unit time is decreased by more than 3 times with the use of the SmartSensor."

June 19, 2008

LINDON, UT—A student paper analyzing the effects of dilemma zone protection at high-speed intersections has found that SmartSensor Advance has a greater impact on red light violations than loops.

David Hurwitz, a graduate student at the University of Massachusetts-Amherst, wrote that the purpose of his research was to "quantify the differences between inductive loops and the SmartSensor Advance in mitigating dilemma zone issues." To accomplish this, Hurwitz identified a high-speed, signalized intersection in Vermont and collected several hours of data from each device. Video was used to verify the data.

According to Hurwitz, "The average rate of [red light running] incidences per unit time is decreased by more than 3 times with the use of the SmartSensor."

The paper has been entered in the Institute of Transportation Engineers Daniel B. Fambro Student Paper Competition, and was presented at the ITE Annual Meeting in Anaheim.