A year after implementing a series of changes to traffic signals along 75th Street in an effort to improve traffic flow and minimize environmental impact, the city has some heartening numbers to report.
By better coordinating traffic signals from Lamar Ave. to Mission Road, the Mid-American Regional Council’s Operation Greenlight estimates a total savings in reduced travel time and fuel consumption of $63,800 per year. An average of 19,000 vehicles travel along the stretch of 75th Street each day. By optimizing the signals’ timing, MARC estimates that there are 9,700 fewer vehicle stops there every day, saving a total of 9 hours of cumulative travel time. Fewer stopped cars also means better fuel economy: The traffic signal changes are estimated to save 36 gallons of fuel each day.
It will cost approximately $9,000 each year to continue operating the lights in the optimized manner. MARC estimates the benefit to cost ratio for the program will be 7.1 to 1. MARC and Operation Greenlight fund the light timing program. Prairie Village contributes about $5,000 per year to the effort.