INRIX U.S. Signals Scorecard 2020

The 1st National Benchmark of Key Traffic Signal Performance Measures Using Connected Vehicle Data.

Traffic Signal Scorecard Report

Using trillions of data points from connected vehicles and INRIX Signal Analytics, we analyzed all vehicle movements at over 210,000 signalized intersections across the US to provide a systemwide analysis of individual traffic signals on a national level.

The INRIX U.S. Signals Scorecard leveraged a week’s worth of data from October 2020, to provide the first national benchmarking of key traffic signal performance measures, like delay per vehicle (‘Level of Service’) and percent of vehicles arriving on green.

This report analyzed traffic signal performance on a National level, in every state and in the 25 largest MPOs/MPAs. Additionally, we ranked the 25 worst "urban intersections" nationwide based on average delay-per-vehicle.

Click below to view the full report or jump to the interactive Signals Explorer Map to see all intersections analyzed:

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What You’ll Learn:

  • The ‘Top Ten” Best/Worst performing MPOs with 500 or More Signals Analyzed
  • The ‘Top Ten” Best/Worst Performing Counties with 500 or More Signals Analyzed
  • The “Top 25” Worst Performing Urban Intersections
  • Traffic Signal Performance Metrics for All 50 States Including Arrival on Green (%), Est. Stops Per Signal, Avg. Delay Per Vehicle, Total Delay (Hours), Total Delay Per Signal (Hours)
  • And much more…

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Traffic Signal Scorecard Explorer Map

Use the interactive map below to dig into the data from our report to see traffic signal performance grades by state, region, county, city and even the block level.

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Related INRIX Signal Analytics Resources

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By connecting the dots between people, vehicles, roads, cities and businesses – INRIX IQ can help you gain deep insights from the entire transportation eco-system.