Nighttime enforcement of seat belt laws : an evaluation of three community programs

Solomon, M. G. (Mark Geoffrey); Chaffe, Robert H. B.; Preusser, David F. · 2009 · ROSA P / United States. Department of Transportation. National Highway Traffic Safety Administration

archive: archived pipeline: cataloged verified

Get this paper ↗ (full text — opens at the source; we link to it, we don't host it)

Summary

This study evaluates the effectiveness of nighttime seat belt enforcement programs in three U.S. communities: Asheville and Greenville, North Carolina, and Charleston, West Virginia. The research was motivated by data showing that while daytime enforcement improves seat belt usage, nighttime usage remains low and contributes significantly to traffic fatalities, particularly among unbelted, alcohol-impaired drivers. The study aimed to determine if nighttime enforcement could increase belt use, whether specific enforcement tactics yielded different results, and if such programs could deter drinking and driving. The evaluation involved four 10-day enforcement waves conducted throughout 2007, supported by paid and earned media campaigns. Each community employed a distinct enforcement tactic: Asheville used seat belt checkpoints under a primary enforcement law; Greenville utilized saturation patrols with portable light towers, also under a primary law; and Charleston implemented "safety enforcement zones" akin to checkpoints but under a secondary enforcement law. Gastonia, North Carolina, and Wheeling, West Virginia, served as comparison sites. Data collection included observational surveys of seat belt use, awareness surveys, and, in Asheville, voluntary roadside breath tests to measure blood alcohol concentration (BAC). Results indicated that checkpoint-style enforcement in Asheville and Charleston led to statistically significant increases in nighttime seat belt use. Asheville’s usage rose from 83.3% to 91.0% across the program waves, while Charleston’s increased from 58.4% to 66.5%. In contrast, Greenville’s saturation patrols produced less improvement, with usage fluctuating between 83.4% and 89.5% without consistent significant gains. Public awareness of the enforcement efforts increased significantly in all three communities during the initial waves. Additionally, Asheville’s breath test data revealed a decrease in the percentage of drivers who had been drinking, dropping from 16% in Wave 1 to 10% in Wave 4. The study concludes that nighttime seat belt enforcement, combined with publicity, is effective for increasing belt usage and reducing drinking and driving. Checkpoint-style enforcement proved more effective than saturation patrols in this context. The findings suggest that law enforcement agencies and policymakers should consider implementing nighttime enforcement programs to address the high rate of unbelted occupants and alcohol-related fatalities during late-night hours.

Key finding

Checkpoint-style nighttime enforcement programs resulted in statistically significant increases in seat belt use rates, while voluntary breath testing at checkpoints demonstrated a reduction in the percentage of drivers who had been drinking.

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).

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

Topics

Ranked by relevance to this paper. Hover a topic for its definition.

• seat belt use
• dui enforcement

Information type

What kind of knowledge this paper contributes, grouped by family — independent of topic (what it is about) and method (how it was studied).

• Applied Guidance: countermeasure evaluation, policy recommendations
• Empirical Findings: observational prevalence