U.S. State Seat Belt Use Analysis with Law and Fine Data, 1997-2008

1997 to 2008 data from a study by James L. Nichols analyzing relationships between U.S. state seat belt use and enforcement laws and fine levels. The study used panel regression analyses on two outcome measures: seat belt use among fatalities from the Fatality Analysis Reporting System (FARS) and observed statewide seat belt use. Results indicated primary law upgrades were associated with 9- to 12-percentage-point increases in use, while fine increases from $25 to $100 correlated with a nearly 7-point increase.

Use Cases

• Modeling the impact of primary versus secondary enforcement laws on seat belt use rates.
• Analyzing the relationship between fine amount increases and changes in observed seat belt use.
• Comparing the effectiveness of legal changes versus financial penalties using panel regression methods.
• Predicting seat belt use outcomes based on state-level policy variables.

Strengths

• Analysis covers two distinct time periods (1997-2002 and 2003-2008) for longitudinal comparison.
• Uses two outcome measures (FARS fatality data and observed use) for validation.
• Quantifies specific effect sizes: primary law upgrades associated with 9-12 point increases, fine increases from $25 to $100 with nearly 7-point increases.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Last update date is unknown; freshness unverified.

Provenance

Source

James L. Nichols

Collection Method

Panel regression analyses on state-level data, likely from Fatality Analysis Reporting System (FARS) and observational surveys.

Time Range

1997 to 2008

Freshness

null

Geography

United States (state-level)