2010 Michigan Traffic Crash Facts

NHTSA · 2011 · ROSA P / Michigan. Office of Highway Safety Planning

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Summary

The *2010 Michigan Traffic Crash Facts* report provides a comprehensive statistical analysis of traffic safety in Michigan for the calendar year 2010. Produced by the University of Michigan Transportation Research Institute (UMTRI) using data from the Michigan Department of State Police, the document addresses the fluctuation in crash trends, specifically investigating a notable increase in fatalities following a decline in previous years. The report aims to provide accurate, timely data to support highway safety planning and policy, relying on the Michigan Traffic Crash Report Forms (UD-10) submitted by law enforcement agencies statewide. The methodology involves aggregating data from multiple state agencies, including the Departments of Transportation, State, and Community Health. The analysis covers exposure factors such as vehicle miles traveled (VMT), licensed drivers, and vehicle registrations. The report utilizes standardized definitions for crash types, injury severity (KABC scale), and driver conditions, including alcohol and drug involvement. It presents data through various lenses, including historical trends (1959–2010), demographic breakdowns by age and gender, and specific crash circumstances such as alcohol involvement, deer collisions, and heavy truck incidents. Key findings indicate that while total crashes decreased by 3.1 percent and injuries dropped by 0.6 percent compared to 2009, fatal crashes increased by 7.6 percent, resulting in 937 deaths. The death rate rose to 0.96 per 100 million miles of travel, up 5.5 percent from the previous year, though it remained below the ten-year average of 1.11. Exposure metrics showed a 1.8 percent increase in VMT to 97.6 billion miles and a slight increase in licensed drivers to 7.1 million. Alcohol remained a significant factor, contributing to 30.4 percent of all fatal crashes. While alcohol-involved crashes constituted only 3.5 percent of all crashes, 42.8 percent of these resulted in injury or death, compared to 18.6 percent for all crashes. Safety belt usage was observed at 95.2 percent. The report concludes that the 2010 increase in fatalities likely represents a return to normal levels after an unusually low count in 2009, as supported by external UMTRI analysis. The data highlights persistent challenges with alcohol-impaired driving and underscores the importance of continued data quality improvements through electronic collection and error-checking technologies. By providing detailed breakdowns of crash circumstances, driver demographics, and roadway conditions, the report serves as a critical resource for identifying safety trends and informing interventions to reduce deaths and injuries on Michigan roadways.

Key finding

The 2010 traffic fatality count was 937, representing a 7.6 percent increase from the 2009 figure of 871, while total crashes decreased by 3.1 percent and injuries decreased by 0.6 percent.

Methodology

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