1999 Michigan Traffic Crash Facts

NHTSA · 2000 · ROSA P / Michigan. Office of Highway Safety Planning

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Summary

The "1999 Michigan Traffic Crash Facts" report provides a comprehensive statistical analysis of motor vehicle crashes in Michigan for the year 1999. Published by the University of Michigan Transportation Research Institute and funded by the Office of Highway Safety Planning, the document aims to quantify traffic safety outcomes to support injury reduction efforts. The study addresses the magnitude of fatalities, injuries, and property damage, while examining contributing factors such as alcohol consumption, driver demographics, and exposure metrics like vehicle miles traveled. The data were derived from 1999 Michigan Traffic Crash Report Forms (UD-10) submitted by local police, sheriff jurisdictions, and the Department of State Police. Supplementary information was obtained from the Departments of Transportation, State, and Community Health. The report analyzes 415,675 reported crashes, categorizing them by severity, vehicle type, driver age, and hazardous actions. It also incorporates exposure data, including motor vehicle registrations, the number of licensed drivers, and total vehicle travel mileage, to calculate crash and death rates per 100 million vehicle miles traveled. In 1999, Michigan recorded 1,386 traffic fatalities, a 1.4 percent increase from 1998, and 124,601 injuries, a 5.3 percent decrease. Total reported crashes increased by 2.9 percent. The death rate remained stable at 1.5 deaths per 100 million miles of travel, below the ten-year average of 1.7. Alcohol involvement was a significant factor: 38.8 percent of fatal crashes involved drinking, and 66.3 percent of alcohol-related fatal crashes were single-vehicle incidents. Young drivers accounted for 23.3 percent of drivers involved in fatal crashes, with 13.4 percent under age 21. Restraint usage was reported for 79.2 percent of drivers and injured passengers, though usage among fatal victims was only 44.4 percent when known. The economic cost of these crashes totaled approximately $9.6 billion, with $4.3 billion attributed to fatalities. The findings highlight that while injury counts decreased, fatalities rose slightly, maintaining a steady death rate despite increased vehicle exposure. The high prevalence of alcohol in fatal crashes, particularly single-vehicle incidents, underscores the continued impact of impaired driving. The report identifies specific vulnerabilities among young drivers and pedestrians, noting that motor vehicle crashes are the leading cause of accidental death for teenagers and young adults. These statistics provide a baseline for evaluating traffic safety programs and inform policy decisions aimed at reducing crash severity and frequency through targeted interventions for high-risk groups and behaviors.

Key finding

In 1999, Michigan recorded 1,386 traffic fatalities and 124,601 injuries across 415,675 crashes, with alcohol involvement present in 38.8 percent of fatal incidents.

Methodology

dataset

Provenance

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Topics

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• incidence prevalence
• fatality injury trends
• demographic disparities
• comparative international
• crash typology
• vru crash typology

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