Increasing Seat Belt Use in New York City: Evaluation of a Demonstration Project
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Summary
This report evaluates a demonstration project conducted by the New York Police Department (NYPD) to determine if high-visibility seat belt enforcement could increase compliance in a localized, diverse urban community without relying on expensive citywide broadcast media. The study was motivated by the need to address low seat belt use among underserved populations and to test whether a Selective Traffic Enforcement Program (STEP) could be effective when targeted at a specific high-risk corridor using only localized media and intense police presence. The intervention took place along Northern Boulevard in Queens, New York, across four waves between June 2007 and April 2008. The program utilized localized paid media, including bus shelter ads, posters, and billboards, alongside substantial enforcement efforts comprising approximately 160 checkpoints and roving patrols. Grand Concourse in the Bronx served as a comparison site, selected for its similar demographic and traffic characteristics but lack of program exposure. The evaluation methodology included roadside seat belt observations conducted by trained researchers during day and evening hours, as well as public awareness surveys distributed at Department of Motor Vehicles (DMV) offices in both Queens and the Bronx. Enforcement was intense, resulting in nearly 6,724 seat belt tickets issued during the program period. The results demonstrated significant increases in seat belt use along Northern Boulevard. Observed belt use in Queens increased significantly from pre- to post-intervention periods in both Wave 1 and Wave 4, with overall rates rising from 87.3% to 89.0% in the first wave and from 85.1% to 88.7% in the final wave. Significant improvements were noted across various demographic groups, including Whites, Blacks, males, and females, as well as on both the main corridor and local side roads. In contrast, the comparison site in the Bronx showed no significant changes during the first wave and only modest improvements in the final wave. Statistical analysis confirmed that belt use along Northern Boulevard increased significantly over the life of the program (p<.05) and was significantly higher than in the Bronx (p<.01). Additionally, DMV surveys indicated that residents successfully recalled the localized media messages and police checkpoints. The study concludes that an urban police agency with strong leadership and sufficient resources can effectively increase seat belt use along a known high-risk corridor without purchasing prohibitively expensive citywide media. The findings suggest that localized STEP programs, combining intense enforcement with targeted local media, are a viable strategy for improving occupant protection in diverse metropolitan areas. This approach offers a cost-effective alternative to broad media campaigns for targeting specific high-risk neighborhoods.
Key finding
Observed seat belt use along Northern Boulevard in Queens increased significantly over the course of the program and showed greater improvement compared to the control site in the Bronx.
Methodology
field_study
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 |
| chunk | success | — | — | — | 1 | 2026-06-01 |
| 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 | — | — | 19 | 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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- Applied Guidance: countermeasure evaluation
- Empirical Findings: observational prevalence