About half of Americans (49%) say people in their area are driving more dangerously than before the coronavirus pandemic, while only 9% say people are driving more safely, according to a new Pew Research Center survey. What publicly available data there is on the subject suggests that those perceptions may be right, at least in part.

There’s no one definitive data source for how common “dangerous driving” is, or even necessarily agreement on what specific behaviors that involves. Most data on people’s actual (as opposed to self-reported) driving habits comes from encounters with law enforcement – arrests, citations, accident reports and the like. Thus, the resulting data can’t be representative of the entire driving population.

Nonetheless, there’s a fair amount of data indicating that Americans’ driving habits have worsened over the past five years, at least in some ways.