What type of survey relies on self-reported behavior by participants?

The choice of stated preference surveys is appropriate because these surveys specifically capture participants' self-reported behaviors, attitudes, and preferences regarding various scenarios or choices they might face. In stated preference surveys, individuals are asked to provide their opinions or predicted behaviors in hypothetical situations, which allows researchers to gather insights on how people say they would behave under certain conditions.

This method often utilizes techniques such as surveys or questionnaires where respondents indicate their preferences or the likelihood of certain behaviors, often in response to specific policy questions or transport scenarios. It is particularly useful in understanding how changes in road safety policies, transportation systems, or conditions might impact the choices people make.

This is distinct from revealed preference surveys, where data is collected based on actual observed behaviors rather than self-reported intentions. Observational surveys rely on directly observing participants in real-world settings without asking them about their choices. Data-driven approaches typically analyze existing datasets rather than collecting new self-reported information. Therefore, stated preference surveys provide valuable insights into potential behavior based on self-reporting.