Explore which cities are least likely to experience collisions.

The Allstate America's Best Drivers Report® is our annual report that identifies which of the 200 largest U.S. cities have the safest drivers. In the Report's milestone 15th year, we're also sharing the Risky Roads in the 15 bottom-ranked cities where collisions are most common. To help spur positive change in communities, Allstate is investing $150,000 toward safety improvements on these Risky Roads.

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The Allstate America's Best Drivers Report© is the result of an in-depth examination of company claims data to determine the likelihood drivers in America's 200 most populous cities will experience a vehicle collision compared to the national average. According to Allstate claims data, the average driver in the U.S will experience a collision once every 10.57 years. This year, Allstate researchers analyzed property damage claims reported during the two-year period of January 2016 to December 2017. The report defines a collision as any auto crash resulting in a property damage claim and uses U.S. Census Bureau data to determine America's 200 largest cities. To obtain the population density factor, Census population data is divided by a city's land-based square mileage. For the precipitation factor, 30-year annual precipitation averages from the National Oceanic and Atmospheric Administration (NOAA) are combined with the days of measurable precipitation per year averaged over several decades. Hard-braking data is based on customers voluntarily enrolled in Allstate's Drivewise® telematics program from 2016-2017. A number of cities and their surrounding suburbs in the full 200 Best Drivers rankings are excluded from hard-braking analysis due to limited measurable Drivewise data, or because Drivewise was not available (California, North Carolina, South Carolina and Texas). Allstate's auto policies represent approximately 10% of all U.S. auto policies, making this report a realistic snapshot of what's happening on America's roadways. The Allstate America's Best Drivers Report is produced solely to boost the country's discussion about safe driving and to increase awareness of the importance of being safe and attentive behind the wheel. The report is not used to determine auto insurance rates.

Allstate found a correlation between hard braking and collision frequency. Drivers in cities with fewer hard-braking events per 1,000 miles tend to have fewer property damage claims. Nationally, the average American driver will experience approximately 19 hard-braking events for every 1,000 miles driven.