Comment by cooljoseph

No, surveys like where researchers show up to hospitals and look at the police reports for the injured cyclists.

Sorry if I wasn't clear in my wording. By "survey" I was trying to point to the specific kind of research methodology where you survey people about what has happened in the past instead of trying to control variables like in a typical experiment.

I wasn't talking about random internet polls or self-reported blame analyses, but actual research papers.