2008 Louisiana traffic records data report

Schneider, H. · 2009 · ROSA P / Louisiana State University. Highway Safety Research Group

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Summary

The 2008 Louisiana Traffic Records Data Report, produced by the Highway Safety Research Group at Louisiana State University, provides a comprehensive statistical analysis of motor vehicle crashes in Louisiana for the year 2008. The report aims to quantify traffic safety trends, identify contributing factors to fatalities and injuries, and estimate the economic impact of crashes on the state. It serves as a baseline for evaluating the effectiveness of safety interventions, such as seatbelt enforcement and mandatory helmet laws, by comparing 2008 data against historical trends from 2002 to 2007. The study utilizes traffic records received prior to May 20, 2009, encompassing fatal, injury, and property-damage-only crashes. Data are normalized using vehicle miles traveled (VMT), licensed drivers, and population statistics to calculate crash rates. A key methodological feature is the use of a data mining algorithm developed at LSU to estimate alcohol involvement in crashes where Blood Alcohol Concentration (BAC) data were missing or unknown. Economic costs are calculated using National Highway Traffic Safety Administration (NHTSA) 2000 cost estimates, adjusted for inflation via the Consumer Price Index. The report categorizes crashes by severity, location, time, driver demographics, vehicle type, and contributing factors like alcohol and seatbelt usage. In 2008, Louisiana recorded 818 fatal crashes and 913 fatalities, representing decreases of 9.1% and 8.1%, respectively, from 2007. There were 46,501 injury crashes and 75,902 injuries, both showing slight declines. The total economic cost of these crashes was estimated at $6.43 billion, or $2,264 per licensed driver. Alcohol was a primary contributing factor, with 49% of traffic fatalities estimated to be alcohol-related. Seatbelt non-use was also prevalent; 68% of occupants who died in crashes were not wearing safety belts, and 63% of children under five were not properly restrained. Motorcycle fatalities decreased by 9.1%, while helmet usage in motorcycle crashes rose to 88%, attributed to the mandatory helmet law enacted in 2004. Pedestrian fatalities remained steady at 110, accounting for 12% of all traffic deaths. The findings highlight that while overall fatality rates declined, alcohol impairment and lack of occupant protection remain critical issues. The report notes that Louisiana’s fatality rate per 100 million miles traveled (2.03) was significantly higher than the national average. The data suggest that safety programs, particularly regarding helmet use, have yielded measurable benefits, with the mandatory helmet law estimated to have saved at least 60 lives and over $270 million in costs since its implementation. The report underscores the need for continued focus on alcohol-related crashes and seatbelt compliance to further reduce the high burden of traffic fatalities in Louisiana.

Key finding

Louisiana recorded 913 traffic fatalities and 818 fatal crashes in 2008, with 49% of fatalities estimated to be alcohol-related and 68% of occupants killed not wearing safety belts.

Methodology

dataset

Provenance

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Topics

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• incidence prevalence
• demographic disparities
• fatality injury trends
• comparative international

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).

• Empirical Findings: crash risk outcomes, observational prevalence