IIHS: Cell Phone Use in Crashes Undercounted by Factor of Seven
Telematics data reveals a massive gap between actual mobile device usage and official police reports following vehicle collisions.
Official police reports are significantly undercounting the role of mobile devices in vehicle collisions, according to a study by the Insurance Institute for Highway Safety (IIHS). The findings suggest that the prevalence of distracted driving is far higher than current safety data indicates.
To uncover the discrepancy, the IIHS analyzed telematics data from safe-driving applications, comparing actual phone usage against official police reports for nearly 17,000 linked crashes. The data revealed that phone use occurred in the 30 seconds prior to impact in 7% of single-vehicle crashes and 8% of two-vehicle crashes. In stark contrast, police reports recorded cell phone involvement in less than 1% of those same incidents.
The Data Gap
This gap highlights a systemic failure in how distracted driving is documented at the scene of an accident. While police officers rely on driver admissions or witness testimony, telematics provide an objective digital footprint of device activity. The IIHS findings indicate that phone use is undercounted by a factor of at least seven, meaning the vast majority of distracted driving incidents go undocumented in official records.
Why It Matters
Underreporting creates a dangerous blind spot for policymakers and automotive engineers. When official data suggests that cell phone use is a negligible factor in crashes, it hinders the development of targeted legislation and the prioritization of safety technologies designed to prevent distracted driving. Accurate data is the primary driver for implementing stricter hands-free laws and advancing in-cabin monitoring systems that can alert drivers to distraction in real-time.
What's Next
As telematics and connected-car data become more prevalent, the industry expects a shift toward more objective crash reconstruction methods. The IIHS study underscores the need for law enforcement to integrate digital evidence into accident reporting to ensure safety statistics reflect reality. Whether this will lead to a formal change in how police reports are filed across different jurisdictions remains to be seen.