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June 6, 2019
The Lake County Division of Transportation (LCDOT) conducted a Signal Coordination and Timing Study on Lewis Ave. from Sunset Ave. to IL 173. By adjusting signal timing, enhancing technology, and coordinating signals through Lake County PASSAGE, we were able to reduce delays, reduce CO2 emissions, and help motorists save money on fuel.
During the study, traffic was reviewed during weekday peak travel times in the morning, mid-day, and evening with attention on travel time, stops, and average speed. The study consultant worked with LCDOT staff to adjust timing and improve coordination of the 11 traffic signals in the study area.
Jon Nelson, LCDOT's Engineer of Traffic explained, “LCDOT regularly conducts Signal Coordination and Timing Studies to make roads smarter and more efficient. Utilizing technology to make signal and timing adjustments is just one of the tools we have in our toolbox for improving traffic flow.”
The final results of the study show that the coordination and adjustment of the signals through the Lake County PASSAGE system, decreased idling time and improved traffic flow; which caused a decrease in vehicle delay time (403 hours per day), a decrease in fuel consumption (4380 gallons per year), and a decrease in CO2 emissions (25.2 metric tons per year). A collective cost savings was also calculated, an estimated $2.5 million a year.
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