The use of safety restraint systems in Virginia by occupants under 16 years of age : summer 1998.

Stoke, Charles B · 1999 · ROSA P / Virginia Transportation Research Council (VTRC)

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Summary

This technical assistance report evaluates the use of safety restraint systems by occupants under 16 years of age in Virginia during the summer of 1998. The study was motivated by the transfer of the state’s child safety seat program to the Virginia Department of Health (VDH) and the implementation of new statutes requiring mandatory restraint use for rear-seat occupants aged 4 to 16. The research aimed to update longitudinal data on compliance, track changes in riding positions, and assess the impact of public education and enforcement efforts. The methodology involved observational surveys conducted at 41 sites across four metropolitan areas and three mid-size cities. Data were collected by trained observers at signalized intersections during specific time windows over a single day. Observers recorded the use of child safety seats for occupants under 4 years of age and lap/shoulder belts for occupants aged 4 to 16. Usage was categorized as correct, incorrect, or non-use based on visible criteria from outside the vehicle. The study observed 472 occupants under 4 and 1,395 occupants aged 4 to 16. Statistical comparisons were made between 1998 data and previous years (1997 and 1993) using chi-square tests to determine significance. The findings revealed three major trends. First, there was a statistically significant shift in riding position, with fewer children riding in front seats. In metropolitan areas, the proportion of occupants under 4 in front seats dropped from 19.6% in 1997 to 7.3% in 1998, and for those aged 4 to 16, it fell from 47.8% to 30.7%. Second, child safety seat use for those under 4 showed a small, non-statistically significant decline in non-use rates, with combined correct use at 55.3% and non-use at 25.8% in 1998. Third, safety restraint use for occupants aged 4 to 16 improved significantly. Non-use rates dropped sharply from 53.5% in 1997 to 37.2% in 1998, while correct use rose from 42.2% to 47.6%. This shift was statistically significant at the 1% level across all site categories. The study concludes that public and private sector efforts to educate the public about rear-seat safety have positively influenced riding positions. Additionally, the mandatory restraint law for ages 4 to 16 correlated with increased compliance. The authors recommend continued public information campaigns and targeted enforcement, particularly in areas with high non-use rates such as the central metropolitan area and Danville. The report notes that correct use rates may be overestimated because in-traffic surveys cannot verify proper belt tension for child seats.

Key finding

Non-use of safety restraints by occupants aged 4 to 16 declined significantly from 53.5% in 1997 to 37.2% in 1998, while front seat occupancy for this group dropped significantly in both metropolitan and mid-size cities.

Methodology

field_study

Sample size: 1867

Provenance

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Topics

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• child passenger safety
• seat belt use

Information type

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• Empirical Findings: observational prevalence