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ATRI Study Outlines Link Between Traffic Violations, Unsafe Driving

The American Transportation Research Institute recently released the 2022 update to its well-known Predicting Truck Crash Involvement research. ATRI’s Crash Predictor research, originally published in 2005 with updates in 2011 and 2018, designed and tested a predictive model that identified statistically significant relationships between truck driver safety behaviors and future crash probability. The new 2022 report uses the same statistical methods, and is based on more than 580,000 individual truck driver records.


ATRI’s analysis identified more than 25 different violations and convictions that increased the likelihood of future crashes, five of which increased future crash likelihood by over 100 percent. Simply having a previous crash increased a truck driver’s probability of having a future crash by 113 percent, 28.4 percent higher than previous ATRI Crash Predictor reports.


Five behaviors have consistently been strong indicators of future crash involvement across three or more reports, including a Reckless Driving violation, Failure to Use / Improper Signal conviction, a prior crash, Failure to Yield Right-of-Way violation, and an Improper or Erratic Lane Changes conviction.


The 2022 Crash Predictor update includes several new analyses, including a safety comparison between 18-20 year old truck drivers and those older than 24 years. The report also revisits the safety of male versus female truck drivers, with female drivers continuing to be safer than their male counterparts.


The analysis also documents a surprising differential between the percentage of female truck drivers overall (6.7%) and their much smaller representation among truck driver inspections (2.7%). Several explanations are tested to understand the basis for the difference.


Finally, the report includes an updated list of the 10 Top Tier States for truck safety, ranked by the relationship between traffic enforcement inspections and crashes. Washington State was the top-ranked state, followed by Indiana, New Mexico, Arizona and Massachusetts.


“Having a science-based model for predicting crashes is one of the most important tools the trucking industry can have. ATRI’s Crash Predictor research allows carriers to target and monitor those truck driver behaviors that matter most. With truck crashes increasing, there is no better time to have this data in our hands,” said American Trucking Associations Vice President of Safety Policy Dan Horvath.


A full copy of the report is available through ATRI’s website here.




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