Signal performance has a direct impact on how efficiently people and goods move through a transportation network. But understanding that performance, and knowing where improvements could have the greatest impact, requires the right data and context.
The INRIX 2026 U.S. Traffic Signals Scorecard provides both. Built from more than 10.6 billion observed vehicle crossings at 276,880 signalized intersections, the Signals Scorecard offers transportation agencies and mobility professionals a nationwide benchmark for signal performance. It also demonstrates how connected vehicle data can uncover opportunities to improve operations, prioritize resources and make more informed decisions across an entire network.
From benchmarking performance against peer agencies to identifying intersections and corridors that warrant attention, the Signals Scorecard provides a starting point for turning signal performance data into actionable insights.
Benchmark Your Network Against Your Peers
It can be difficult to know whether signal performance is typical or whether there is meaningful room for improvement.
The Signals Scorecard provides a valuable point of comparison. INRIX analyzed metrics including control delay, Arrival on Green, split failures and Level of Service at the national, state, metropolitan, county and individual intersection levels.
For example, the Signals Scorecard found that the average U.S. signalized intersection produced 20.1 seconds of delay per vehicle, while the national average Arrival on Green rate was 58.1%.
These benchmarks provide important context for evaluating network performance. Comparing results against national and peer benchmarks can help reveal where performance stands out, uncover potential issues, and identify where changes could have the greatest impact.
Find Opportunities Hidden Across Your Network
It also highlights something transportation professionals experience every day: signal performance can vary significantly from one intersection or corridor to another.
Among the 25 most-populated MPOs analyzed, all-day average signal delay ranged from 11.65 seconds in Pittsburgh to 29.65 seconds in Miami. During peak periods, those differences can become even greater.
For an agency managing hundreds or thousands of signals, manually identifying those variations is challenging. But connected vehicle data can help you see performance across your entire network and quickly identify intersections and corridors that warrant attention.
Make Better Use of Limited Resources
Every agency has competing priorities. Signals may need retiming, corridors may require further investigation, complaints need validation, and capital improvements compete for limited funding.
The question is where to start.
The Signals Scorecard illustrates how objective performance data can help prioritize those decisions. Instead of relying solely on periodic studies, field observations or individual complaints, network-wide data can identify locations with high delay, low Arrival on Green rates, frequent split failures or other indicators of poor performance.
These insights can help agencies build a stronger case for where to deploy staff, where to invest and where improvements could deliver the greatest benefit to road users.
Move From a Snapshot to Ongoing Signal Intelligence
The Signals Scorecard provides a nationwide snapshot, but the bigger opportunity is applying this type of analysis directly to your network.
With INRIX Signal Analytics, agencies can use connected vehicle data to measure and monitor signal performance at scale. That gives your team greater visibility into how intersections are operating without requiring detection infrastructure at every location.
These insights help benchmark performance, identify problem intersections, evaluate corridors, prioritize optimization efforts and measure changes over time. Since the analysis can extend across a network, there is the ability to move beyond studying a handful of intersections toward understanding performance systemwide.
What Could Your Signals Tell You?
The INRIX 2026 U.S. Traffic Signals Scorecard isn’t simply a ranking of which places have the most or least delay. It’s an opportunity to see what large-scale signal performance data can reveal and consider what the same approach could uncover within your own network.
Explore the INRIX 2026 U.S. Traffic Signals Scorecard to see how your region compares, identify the metrics that matter to your organization and discover how INRIX can help turn your signal data into decisions that improve mobility.