StreetLight 2018 AADT for test data compared to permanent counter AADT at 2,527 locations across the U.S.; R2 is 0.94, and no outliers were removed.


San Francisco — StreetLight Data, Inc. launched Annual Average Daily Traffic (AADT) for 2018 on the StreetLight InSight platform. Providing accurate, on-demand traffic volumes for over 4 million miles of roadway, the company’s AADT numbers enable smarter cities and better infrastructure decisions. At record speed, comprehensive 2018 AADT metrics are now available in the first quarter of 2019, in time to inform critical infrastructure and funding decisions.

AADT is a critical measurement for transportation planners and engineers analyzing infrastructure projects, estimating road safety or seeking highway funds. Historically, AADT counts have been measured manually and at high cost. From getting approval, to training staff, collecting traffic counts, and validating the data, deriving just a few thousand counts can take months and cost hundreds of thousands of dollars.

With StreetLight Insight, the company’s software platform, counts can be queried for accurate AADT on demand for the vast majority of U.S. roads, and even in complex cases, results can be delivered in minutes.

“Our mission is to help planners, states, counties and cities make better, faster and more cost-effective data-driven decisions,” said Laura Schewel, CEO and co-founder of StreetLight Data. “With the 2018 AADT release we have measured and analyzed the movements of millions of vehicles for all 365 days, across nearly every mile of U.S. roadway. Best of all, we are able to bring those complete data sets to the people who need 2018 counts faster than ever before.”

Based on Over 60 billion monthly location records across the country, collected from smart phones, connected cars and trucks, StreetLight’s algorithms draw on 365 days of data on more than 4 million miles of roadway.  Available for urban and rural roads big and small, the company’s 2018 AADT counts outperform industry-standard accuracy targets, as published today in StreetLight Data’s 2018 AADT Methodology and Validation white paper, available for download at www.streetlightdata.com/aadt.

With federal requirements put in place by the “Moving Ahead for Progress in the 21st Century Act” (MAP-21), local and state government agencies must increase reporting of performance metrics for planning and funding allocation. This has increased the need for quick, easy, dynamic and cost-effective AADT measurements.

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