White papers
Learn more about our data verification studies, methodologies and guidelines provided for different use cases and our data sources.
Guidance for posted speed limit reductions in support of vision zero
Lowering posted speed limits can improve safety, but the greatest impact comes when reduced limits are paired with roadway design changes, enforcement, and data-driven monitoring.
Minimum required sample size to estimate traffic metrics
Guide to sample size calculation for traffic metrics using Central Limit Theorem formulas and data stacking—no sensors required.
.jpg)
Detector vs. trajectory generated Automated Traffic Signal Performance Measures (ATPMs)
Compares ATSPM methods, showing connected car data offers more accurate, scalable metrics like delay and AOG without fixed infrastructure.
iNode adaptive outlier filtering algorithm
iNode filters outliers from travel time data for reliable real-time traffic analytics.
