Evaluation of Kentucky's "Buckle Up Kentucky : It's the Law & It's Enforced" 2004 campaign.
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Summary
This report evaluates the effectiveness of Kentucky’s 2004 “Buckle Up Kentucky: It’s the Law & It’s Enforced” campaign, a selective traffic enforcement program (STEP) designed to increase seat belt usage. The study was motivated by Kentucky’s relatively low seat belt usage rates, which remained below the national average despite a statewide mandate enacted in 1994. Because Kentucky operates under a secondary enforcement law—where officers can only cite unbuckled drivers after stopping them for another violation—usage rates had plateaued. The campaign aimed to raise usage by 10 percentage points through a coordinated effort of publicity and enforcement during the two-week period surrounding Memorial Day 2004. The evaluation methodology combined observational surveys, media tracking, enforcement data collection, and crash statistics analysis. Researchers conducted mini-surveys at 21 representative sites across the state to measure seat belt usage during four phases: baseline (April), earned media (early May), paid media (mid-May), and enforcement (late May to early June). This sampling approach was validated against previous full-state surveys. Publicity efforts included earned media (news broadcasts and interviews) and paid media (network television, cable, and radio spots) targeting males aged 18–34. Enforcement involved saturated patrols and checkpoints by the Kentucky State Police and 237 local agencies. Crash data from the enforcement period were compared to averages from the previous three years. The results indicated that publicity alone had a negligible impact on behavior, with usage rates remaining static at 64.5% during the earned media phase and rising only slightly to 65.4% during the paid media phase. However, usage increased substantially to 70.5% during the enforcement period, though this fell short of the 10-point goal. Enforcement activities resulted in 6,587 seat belt citations and 429 child restraint citations, alongside significant numbers of speeding citations and DUI arrests. Regarding safety outcomes, the number of injury crashes and injuries during the campaign period was lower than in any of the preceding three years, with 235 fewer injuries than the three-year average. Conversely, fatal crashes and fatalities increased compared to previous years. The authors conclude that while the combination of publicity and enforcement successfully increased seat belt usage, the effect is not sustained once the perception of enforcement risk diminishes. They argue that publicity alone is insufficient to drive long-term behavioral change. Consequently, the report recommends changing Kentucky’s seat belt law from secondary to primary enforcement to achieve higher, sustained usage rates. This legislative change must be accompanied by continued public awareness campaigns to ensure motorists understand that the law is actively enforced.
Key finding
Seat belt usage increased from 64.5 percent to 70.5 percent during the enforcement phase, while media publicity alone resulted in no substantial difference in usage rates.
Methodology
field_study
Sample size: 21
Provenance
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| Stage | Outcome | Tool | Model | Prompt | Attempts | Completed |
|---|---|---|---|---|---|---|
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| summarize | success | llm | qwen3.6-27b-prismaquant | summ-v5 | 3 | 2026-06-10 |
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| 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