Methodology and validation studies

Learn about the methodology behind sourcing, analyzing, and converting our data into useful metrics. Our validations and those from independent third parties confirm the reliability of our location-based services (LBS)-data derived Metrics for transportation applications.

Our most popular methodology and validation reports

Methodology and Data Whitepaper Cover

Our Methodology and Data Sources


AADT 2020 Methodology and Validation

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Bicycle and Pedestrian Methodology and Validation

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Intersection Turning Movement Counts Methodology and Validation


Browse a sample of our third-party validations


Estimating Turning Movement Counts from Probe Data


Emerging Data for Pedestrian and Bicycle Monitoring


StreetLight’s Origin-Destination Data Validation

Texas A and M

Accuracy of Probe-based AADT Estimates in Border Regions


StreetLight AADT 2020 Canada Methodology and Validation White Paper

StreetLight’s white paper documents improvements to AADT Canada Metrics, which enable organizations to quickly and easily access 2020 traffic counts for virtually every road across Canada.

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StreetLight Speed Validation

StreetLight Speed Validation

See how StreetLight’s 85th percentile Speed Metric stacks up to published speed data from Washington and California agencies.

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Bus Rail PDF Cover

See What Powers StreetLight’s Bus and Rail Metrics

Get the data sources, methodology, and validation behind StreetLight Data’s Bus and Rail Metrics, now included in our Multimode subscription.

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Larger Samples

Larger and More Representative Sample Size

See how the Location-Based Services (LBS) data that drives the StreetLight InSight® platform has an equitable and representative sample size across the country.

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StreetLight SB 743 Metric Methodology and Validation

See the data sources, methodology, and validation processes StreetLight used to develop a set of VMT measurements to address California Senate Bill 743.

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VMT Monitor Whitepaper Cover Page

StreetLight VMT Monitor Methodology and Validation White Paper

This white paper outlines our motivation, methodology, and some validation results for StreetLight Data’s daily Vehicle Miles Travelled (VMT) Monitor.

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AADT Canada White Paper

StreetLight AADT 2019 Canada Methodology and Validation White Paper

When you’re looking for up-to-date AADT counts in your Canadian provinces, turn to StreetLight to get quick, easy, cost-effective AADT measures. Our 2019 metric is an update to our previously released 2018 metric, and it continues to outperform industry-standard accuracy targets.

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AADT 2019 White Paper Cover

AADT 2019 Methodology and Validation

StreetLight Data developed an accurate AADT for over four million miles of urban and rural roadway in the U.S. that outperforms industry-standard accuracy targets and can be used by industry practitioners for traffic impacts studies and more.

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Traffic Volume Methodology and Validation White Paper

Our white paper shares technical details about the methodology, algorithm development, validation, and data sources used in our traffic Volume output.

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Travel Surveys White Paper Cover Image

Enriching Household Travel Surveys with Big Data Metrics

Travel surveys are best at capturing subjective, not objective, information. Learn how Big Data gathers fast and accurate measurements for transportation studies.

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Active Transportation Metrics: Methodology and Validation

A brief summary of StreetLight’s active transportation metrics, methodology, and validation.

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