What does a stated preference survey measure compared to a revealed preference survey?

A stated preference survey measures self-reported intentions or preferences regarding hypothetical scenarios, while a revealed preference survey gathers data based on actual observed behaviors in real-world situations. The stated preference approach involves asking individuals how they would act in specific circumstances, allowing researchers to assess attitudes and preferences that may not be observable directly. This can be particularly useful in understanding choices related to road safety interventions, where behaviors may not be easily captured through observation alone.

In contrast, revealed preference surveys provide insights into actual behaviors by analyzing choices that individuals have made in the past. This way, researchers rely on real-world data to model decision-making processes. Combining insights from both survey types can give a more comprehensive understanding of individuals' preferences and behaviors related to road safety.