Evaluation of Teen Seat Belt Demonstration Projects in Louisiana, Mississippi, New Mexico, and Texas
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Summary
This report evaluates the effectiveness of teen seat belt demonstration projects implemented in Louisiana, Mississippi, New Mexico, and Texas between 2009 and 2010. The study was motivated by the high fatality rates among young drivers (ages 15–20), who exhibit lower seat belt usage than other age groups, and by prior success with similar demonstrations in Colorado and Nevada. The primary objective was to determine whether coordinated outreach, paid media, and high-visibility enforcement could significantly increase seat belt use among teens in these four states. The intervention consisted of four waves of activity, each combining outreach, earned media, paid advertising, and law enforcement. Two waves coincided with national "Click It or Ticket" (CIOT) mobilizations, while two were independent. Paid media strategies varied by state, with expenditures ranging from $0.02 to $0.08 per capita. Law enforcement agencies issued 5,805 citations to teens across the four states, averaging 20.6 citations per 10,000 teen residents. The evaluation methodology included process metrics (media reach, citation rates) and impact assessments using observational surveys and Department of Motor Vehicle (DMV) awareness surveys. Observational data were collected at baseline and after each wave in both program and control areas, focusing on drivers and passengers near schools and teen-frequented locations. Results indicated that the programs were generally strong in terms of outreach and enforcement intensity. Awareness of seat belt messages and enforcement efforts increased significantly in Mississippi and Texas program areas but not in control areas. Observed seat belt use increased in all four states from baseline to the final wave, with gains ranging from 3 percentage points in Louisiana and New Mexico to 11 points in Mississippi. However, when comparing program areas to control areas, only Mississippi showed a substantial increase in teen belt use attributable to the program. In Texas, increases were similar in both program and control areas. In Louisiana and New Mexico, the program did not demonstrate effectiveness relative to control areas, with Louisiana’s control area actually showing greater increases than its program area. Mississippi maintained high media exposure throughout all waves, whereas other states saw decreased exposure during the independent waves. The study concludes that teen-focused seat belt demonstrations are most effective when paired with national CIOT mobilizations, likely due to greater resources and the combined power of focused and broad efforts. Mississippi’s success was attributed to sustained high exposure across all waves. The findings suggest that integrating focused messages for specific populations into larger national mobilizations yields the greatest impact, with no negative effects observed on adult seat belt use.
Key finding
Only Mississippi experienced a statistically significant increase in teen seat belt use in the program area compared to the control area, while other states showed increases in both program and control areas or no significant difference.
Methodology
mixed_methods
Sample size: 18901
Provenance
The full processing record for this entry. Every stage of this paper's journey through the pipeline is logged — what ran, with which tool and model, how many attempts it took, and when it last completed. Discovered via bulk_ingest_rosap on 2026-05-23 (6 acquisition events logged).
| Stage | Outcome | Tool | Model | Prompt | Attempts | Completed |
|---|---|---|---|---|---|---|
| discover | success | rosap | — | — | 2 | 2026-05-23 |
| archive | success | — | — | — | 1 | 2026-05-23 |
| extract | success | cached | — | — | 2 | 2026-06-10 |
| clean | success | — | — | — | 1 | 2026-06-01 |
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| embed | success | — | — | — | 1 | 2026-06-02 |
| enrich | success | — | — | — | 1 | 2026-05-23 |
| promote | success | — | — | — | 1 | 2026-05-23 |
| summarize | success | llm | qwen3.6-27b-prismaquant | summ-v5 | 3 | 2026-06-10 |
| tag | success | vector_similarity | — | — | 24 | 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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Information type
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- Applied Guidance: countermeasure evaluation, policy recommendations
- Empirical Findings: observational prevalence