A new smart traffic system in Chicago uses AI to adjust signal timing. During peak hours, it reduces average stop time at intersections by 35%. If the original average stop time was 40 seconds, and a driver passes through 6 such intersections during a commute, how much total time is saved on stops?

Fri, 08 May 2026 20:22:04 +0000

**A New Smart Traffic System in Chicago Uses AI to Adjust Signal Timing—And Saves Drivers Real Time** In cities across the U.S., urban congestion remains a persistent challenge. Commuters face longer wait times at red lights, slowing daily commutes and contributing to driver frustration. Now, Chicago is pioneering a forward-thinking solution: a smart traffic system powered by artificial intelligence. By dynamically adjusting signal timing in real time, the system responds intelligently to traffic flow, especially during peak hours. When stop times are reduced at key intersections, even small gains add up—transforming how people move through the city. For a driver passing through six such intersections, a 35% reduction in stop time means meaningful time saved each day. This innovation isn’t just about traffic—it’s a growing trend in urban planning, where technology meets everyday life to improve commutes. Understanding how the system works reveals its power: with a starting stop time of 40 seconds per intersection, each signal is optimized to minimize delays. When stop times drop by 35%, each intersection saves 14 seconds—14 seconds multiplied by 6 intersections equals 84 seconds lost on stops. For a single morning commute or a regular evening drive, this adds up to over eight extra minutes saved across a week. As urban centers grow busier, systems like this one are becoming essential tools in reducing stress and increasing efficiency. People are noticing, and discussions about smarter city infrastructure are gaining momentum nationwide. So, how exactly does the AI make this possible? At its core, the system uses sensors and real-time data from cameras and vehicle detectors to monitor traffic demand. Algorithms analyze patterns continuously, predicting flow and adjusting signal phases accordingly. At peak hours, when congestion peaks, the system extends green lights for higher-traffic directions while shortening red phases for minor roads—balancing shape flow without full stops. This adaptive approach ensures traffic moves closer to a seamless rhythm, cutting unnecessary waiting. For someone commuting through Chicago’s grid, this means fewer stops, smoother drives, and faster arrival times.