2007 Michigan traffic crash facts
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Summary
This document presents a comprehensive statistical analysis of traffic crashes in Michigan for the calendar year 2007, produced by the Michigan Department of State Police and the University of Michigan Transportation Research Institute. The report addresses the need for accurate, timely, and high-quality traffic safety data to support injury prevention efforts. It is part of a multi-year project initiated in 2002, funded by federal grants and the Michigan Office of Highway Safety Planning, which transitioned data collection to an electronic system to improve error checking and data integrity. The primary objective is to provide a detailed summary of crash occurrences, fatalities, and injuries to inform public safety strategies and policy. The study utilizes data from the 2007 Michigan Traffic Crash Report Forms (UD-10), submitted by local police departments, sheriff’s offices, and the Department of State Police. This core dataset is supplemented by information from the Departments of Transportation, State, and Community Health. The analysis covers statewide trends, demographic breakdowns by driver age and gender, vehicle types, and specific crash circumstances such as alcohol involvement, deer collisions, and red-light running. The report defines key metrics, including vehicle miles traveled (VMT), licensed driver counts, and injury severity scales (KABC), ensuring standardized interpretation of the data. Key findings indicate that 1,084 fatal traffic crashes occurred in 2007, matching the 2006 count and representing the lowest recorded total in the state’s history. The death rate was 1.04 per 100 million vehicle miles traveled. While total crashes increased by 2.8 percent, injuries decreased by 1.7 percent compared to the previous year. Exposure factors showed a 0.6 percent increase in VMT to 104.6 billion and a 0.7 percent rise in motor vehicle registrations to 8.4 million, while the number of licensed drivers fell by 1.4 percent to 7.1 million. Alcohol remained a significant factor in severe crashes; although only 3.8 percent of all crashes involved drinking, 31.7 percent of fatal crashes and 42.2 percent of alcohol-related crashes resulted in injury or death. The significance of this report lies in its role as a foundational resource for traffic safety planning and evaluation in Michigan. By maintaining the lowest fatality count on record despite increased travel mileage, the data suggests potential effectiveness in ongoing safety initiatives. The detailed breakdown of risk factors, particularly the disproportionate impact of alcohol on fatal outcomes, highlights areas for targeted intervention. The transition to electronic data collection has enhanced the reliability of these statistics, allowing for more precise trend analysis and supporting evidence-based decision-making for highway safety programs.
Key finding
In 2007, Michigan recorded 1,084 fatal traffic crashes, identical to the previous year, with alcohol involved in 31.7 percent of those fatalities.
Methodology
dataset
Provenance
The full processing record for this entry. Every stage of this paper's journey through the pipeline is logged — what ran, with which tool and model, how many attempts it took, and when it last completed. Discovered via bulk_ingest_rosap on 2026-05-23 (6 acquisition events logged).
| Stage | Outcome | Tool | Model | Prompt | Attempts | Completed |
|---|---|---|---|---|---|---|
| discover | success | rosap | — | — | 2 | 2026-05-23 |
| archive | success | — | — | — | 1 | 2026-05-23 |
| extract | success | cached | — | — | 2 | 2026-06-10 |
| clean | success | — | — | — | 1 | 2026-06-01 |
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| embed | success | — | — | — | 1 | 2026-06-02 |
| enrich | success | — | — | — | 1 | 2026-05-23 |
| promote | success | — | — | — | 1 | 2026-05-23 |
| summarize | success | llm | qwen3.6-27b-prismaquant | summ-v5 | 3 | 2026-06-10 |
| tag | success | vector_similarity | — | — | 19 | 2026-06-11 |
| verify | success | — | — | — | 2 | 2026-06-10 |
Summary generated by qwen3.6-27b-prismaquant on 2026-06-10; verification: verified.
Topics
Ranked by relevance to this paper. Hover a topic for its definition.
- 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