Among cities with more than 500,000 residents, Detroit has the
safest drivers, with accident rates that are 20 percent below the
For cities with more than 1 million residents, Phoenix has the
safest big-city commuters, with accident rates about equal to the
Here is much more, Philadelphia is a disaster and L.A. isn’t so safe either. I wonder to what extent these rankings simply proxy for traffic density. Here are some charts. Overall Sioux Falls, Tucson, and El Paso seem to be relatively safe cities for driving.