Knowledge about Crash Risk Factors and Self-Reported Driving Behavior: Exploratory Analysis on Multi-State Teen Driver Survey

Das, Subasish · 2018 · Transportation Research Board 97th Annual MeetingTransportation Research Board

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Summary

This study investigates the relationship between teen drivers’ knowledge of crash risk factors and their self-reported driving behaviors. Motivated by the high incidence of motor vehicle crashes among 15- to 19-year-olds—the leading cause of unintentional death for this demographic—the research addresses limitations in conventional retrospective data, such as police reports, which lack detailed information on risk perception. The authors aim to identify key behavioral risk factors using a large prospective dataset collected through the "Teens in the Driver Seat®" (TDS) peer-to-peer safety program. The analysis utilized 109,266 surveys distributed across 281 schools in 11 states between 2007 and 2016. The survey instrument captured demographic data, license status, traffic safety background, and self-reported frequencies of risky behaviors (e.g., cell phone use, speeding, seatbelt non-use) over the past month. Additionally, respondents answered an open-ended question identifying the top five factors contributing to teen crashes. The researchers performed state-specific descriptive statistics and applied text mining algorithms to the open-ended responses to analyze perceived risk factors, correcting for spelling variations to extract meaningful terms. The findings reveal significant discrepancies between perceived risks and actual behaviors. Text mining identified "drinking," "texting," "phone use," "seatbelts," "drugs," and "speeding" as the most frequently cited risk factors. However, gender differences emerged: male respondents more frequently cited drinking, texting, phone use, speeding, and seatbelt non-use, while females cited drinking, phone use, talking, music, and eating. Crucially, risks such as "sleep," "tiredness," "friends," and "passengers" were cited at much lower frequencies in the open-ended responses compared to distractions like music, despite these factors posing significant dangers. Self-reported behavior data showed high engagement in risky activities; for instance, 12.9% of teens reported talking on cell phones "a lot," and 23.8% reported driving after 10 p.m. without an adult "a lot." Notably, states like Nebraska and New Mexico reported higher frequencies of risky behaviors, such as texting while driving and driving with unbuckled passengers, compared to states like New York. The study concludes that while teens acknowledge certain risks like alcohol and distraction, they significantly underestimate the dangers associated with fatigue, nighttime driving, and peer passengers. This gap in risk perception suggests that current interventions may need to better address these under-recognized factors. The large-scale, multi-state nature of the data provides robust insights for tailoring traffic safety education and policy, highlighting the need for continued outreach on the specific dangers of peer presence and nighttime driving to complement Graduated Driver Licensing laws.

Key finding

Teen drivers frequently identify drinking and phone use as primary crash risks but simultaneously report high engagement in these behaviors, while significantly underestimating the risks associated with nighttime driving and peer passengers despite frequent participation in these activities.

Methodology

survey

Sample size: 109266

Provenance

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StageOutcomeToolModelPromptAttemptsCompleted
discover success author_sweep 2 2026-05-27
archive success canonical_url 6 2026-06-06
extract success cached 3 2026-06-10
clean success clean 1 2026-06-07
chunk success chunk 1 2026-06-07
embed success embed Qwen/Qwen3-Embedding-8B 1 2026-06-07
enrich skipped 4 2026-07-02
promote success 1 2026-06-04
summarize success llm qwen3.6-27b-prismaquant summ-v5 2 2026-06-10
tag success vector_similarity 15 2026-06-11
verify success 2 2026-06-10

Summary generated by qwen3.6-27b-prismaquant on 2026-06-10; verification: verified.

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