Drive to Survive
- Poor-Condition Mileage. To compare the percentage of each state’s roads deemed to be in “poor condition” we looked at 2008 numbers put together in a comprehensive report by the Reason Foundation. We combined the rankings for rural interstates, urban interstates and other rural and urban roads to get a unified ranking for road condition.
- Deficient or Obsolete Bridges. Because bridges and overpasses make up an important part of roads everywhere, we looked at 2009 bridge condition data (the most recent available) from the Department of Transportation’s Federal Highway Administration.
- Fatalities. To get an idea of road safety, we looked at the number of road fatalities per state in 2009 – measured per 100 million vehicle miles traveled to account for the different lengths of road in each state – from the Federal Highway Administration.
- Congestion. We again used the Reason Foundation’s calculations to determine peak-hour volume-to-capacity ratios on each state’s roads.